PDF DOWNLOAD Cat Bucyrus DBT - chain tensioner with PMC-R Operating manual

Operating manual DBT - chain tensioner with PMC®-R Doc. no.: 4007 178 070 00 BA 00

Bucyrus DBT Europe GmbH Industriestraße 1 Phone: +49 (0) 23 06 / 709 - 0 Email: info@de.bucyrus.com D-44534 Lünen Fax: +49 (0) 23 06 / 709 - 1421 Web: www.bucyrus.com

Amendments and alterations to this publication are not subject to notification. DBT GmbH (DBT) reserves all rights to this publication.

Its content is protected by copyright laws. No part of this publication may be reproduced or transmitted in any way or form without the prior written approval of DBT. DBT declines all liability for direct or indirect consequences of printing errors.

We reserve the right to introduce modifications obtained by technical development without previous notice!

Bucyrus DBT Europe GmbH, Lünen 2008E

Contents

Contents 1. About this manual Before starting work . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3

Characters and symbols used . . . . . . . . . . . . . . . . . . . .

1.4

2. Your safety Further operating manuals . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3

Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3

Installation and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unauthorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Surrounding area conditions . . . . . . . . . . . . . . . . . . . . . . . . .

Prerequisites for operation . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 2.4 2.4 2.4 2.5

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3. Storage and transport Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3

Storage of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3

Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3

Before transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Transport containers, dimensions and weights . . . . . . . . .

3.3 3.3

4. Assembly Electrical chain tensioner . . . . . . . . . . . . . . . . . . . . . . . .

4.3

5. Operation

Doc. no.: 4007 178 070 BA 00

The PMC®-R - control unit . . . . . . . . . . . . . . . . . . . . . . . .

5.3

Maintenance of the computers . . . . . . . . . . . . . . . . . . . . . . .

Tightening the mounting bolts . . . . . . . . . . . . . . . . . . . . . . . .

5.3 5.3

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3

2. System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4

System parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5

The pressure sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The path measuring rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The conveyor signal - interface . . . . . . . . . . . . . . . . . . . . . .

The electric power supply . . . . . . . . . . . . . . . . . . . . . . . . . . .

The valve block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The PMC®-R control unit computer . . . . . . . . . . . . . . . . . . .

5.5 5.5 5.5 5.6 5.6 5.7

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Contents Operation of the PMC®-R control unit . . . . . . . . . . . . .

5.7

The PMC®-R control unit; overview of the keyboard and menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Keyboard allocation for the PMC®-R Program . . . . . . . . .

Changing program parameters . . . . . . . . . . . . . . . . . . . . . . .

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Idle display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

E-STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local shield support blocked switch (black) . . . . . . . . . . . .

Display of non-connected or defective sensors . . . . . . . . .

Menu structure in the PMC®-R (columns from left to right) Menu call ups through menu keys . . . . . . . . . . . . . . . . . . . .

Menu call ups through speed dialing keys . . . . . . . . . . . . .

Overview of the menu displays: . . . . . . . . . . . . . . . . . . . . . .

5.7 5.8 5.9 5.11 5.11 5.11 5.11 5.11 5.12 5.16 5.16 5.18

Manual control of the system . . . . . . . . . . . . . . . . . . . . . 5.19 Enabling automatic sequence operation . . . . . . . . . . . 5.19

The automatic sequence functions . . . . . . . . . . . . . . . . 5.21 Selection, enabling, activation and deactivation of the automatic sequence . . . . . . . . . . . . . . . . . . . . . . . . 5.22 Starting and stopping the automatic sequence . . . . . . . . .

Selection of an automatic sequence method . . . . . . . . . . .

5.22 5.22

The automatic start-up (pretensioning cycle) . . . . . . . 5.22 The automatic sequence operating modes . . . . . . . . . 5.24 The pressure holding automatic sequence . . . . . . . . . . . . .

The sequence of the automatic pressure maintenance system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conveyer shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.24 5.25 5.26

Rinsing the tensionable drive frame . . . . . . . . . . . . . . . 5.26 Manual rinsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic rinsing time (cyclic) . . . . . . . . . . . . . . . . . . . . . . .

5.26 5.26

Measurement values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.27 Automatic pressure system parameters . . . . . . . . . . . 5.29 SYSTEM PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . 5.36 Hist. Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.40 ERROR MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.40 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.41 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.43 BLOCKING FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 5.46 AUTOMATIC SEQ.SELECTION . . . . . . . . . . . . . . . . . . . . 5.47 Chain tensioner PMC®-R

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5.20 5.21 5.21 5.21 Bucyrus DBT Europe GmbH, Lünen 2008

Interrupting and switching off the automatic sequence functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The function of the <Stop> key . . . . . . . . . . . . . . . . . . . . . . .

The function of the local blocking switch . . . . . . . . . . . . . . .

The function of the emergency stop switch . . . . . . . . . . . .

Contents Appendix 1: Error messages . . . . . . . . . . . . . . . . . . . . . 5.48 Appendix 1.2: Saved error messages . . . . . . . . . . . . . . 5.49 Appendix 2: Meaning of the LED displays in Keys 1 to 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.50 Optional coupling to the face conveyor . . . . . . . . . . . . 5.51 Optional switch relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.51

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6. Technical data The PMC®-R control system . . . . . . . . . . . . . . . . . . . . . .

6.3

Design suitable for mining . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rear view of the PMC®-R . . . . . . . . . . . . . . . . . . . . . . . . . . .

Longwall PMC®-R plug connections . . . . . . . . . . . . . . . . . .

Coding plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coding plug SKK24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3 6.4 6.4 6.4 6.4

Valve connection strip (VA) . . . . . . . . . . . . . . . . . . . . . .

6.6

Allocations of connections valve strip . . . . . . . . . . . . .

6.6

Allocation of its own shield . . . . . . . . . . . . . . . . . . . . . . . . . .

6.6

VALVE STRIP CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.8

VALVE CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.9

Electric power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.11 Pressure sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.11

SKK 24 Hose cable system . . . . . . . . . . . . . . . . . . . . . . . 6.13 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.14 Reed measurement rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.14

Isolations adapter (IA) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.15

7. For your information

Doc. no.: 4007 178 070 BA 00

Our service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3

Referenced national standards and guidelines . . . . . . . . .

7.5

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Contents

Chain tensioner PMC®-R

1

About this manual

Before starting work

About this manual This chapter provides you with important information which will make working with this manual easier. In addition, you receive information on the structure of this manual and the symbols and characters used.

Before starting work Applicable operating manual

You endanger yourself, others and equipment if you do not use an operating manual that complies with the deployment case named.

Ensure that the data on the housings for the system components verify that they belong to the MCU System

Deployment case

This Operating Manual is part of the control system of a shield support with system components that are part of the MCU System.

Current Operating Manual

Operating Manuals for the affected shield support must always be available at the place of operation.

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Request the respective Operating Manuals at once if the ones on hand are no longer complete or if they are illegible.

Who is this operating manual intended for?

This operating manual is intended for all persons who set up the MCU system, those who work with it, do the settings and perform troubleshooting.

All persons working on the face, in the intersection between face and entry, or in the entry must read this operating manual.

This includes persons who: J Are in charge of transport J Perform assembly/disassembly work J Eliminate faults J Carry out the daily routine work in the longwall J Perform maintenance work J Carry out repairs.

Supervisory personnel who: J

Initiate and/or supervise the activities just indicated.

What is the purpose of this operating manual?

Efficiency

This operating manual is intended to help you work efficiently and safely with our product. It contains important information on all the activities related to the MCU System.

Read this operating manual completely and at ease. Pay special attention to the safety instructions. Try to memorise the appearance and the meaning of the safety and instruction symbols.

Service

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If any details are not clearly understood, please contact our service department. Our service address is given in the chapter titled “For your information”.

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1.3

Characters and symbols used Safety

Read the chapter “For your safety” with special attention. This chapter contains important information indicating possible hazards.

Observe the information given and follow the procedural instructions.

Characters and symbols used The following characters and symbols are used for safety instructions and important information in the operating manual.

Try to memorise the symbols and their meanings.

Danger!

Points in the text marked with this symbol draw your attention to immediately impending danger. Possible consequences are: Very serious injury or even death.

Notice!

Points in the text marked with this symbol draw attention to harmful situations. Possible consequences are: Damage to the gearbox, motor, couplings, drive frames, conveyor or damage to the immediate vicinity.

Important!

Points in the text marked with this symbol contain useful tips and information intended to facilitate work for you. They do not warn about harmful or dangerous situations.

J Items in lists are marked with bullets.

– Points in sub-lists are marked with a long dash at the start of the line

. Points in the text marked in this way describe individual work steps

1.4

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Caution!

This symbol draws attention to dangerous situations. Possible consequences are: Light to moderately serious injuries and machine damage.

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Warning!

These points contain information on dangerous situations.

Possible consequences are: Very serious injury or even death.

2

Your safety

Personnel

Your safety This chapter provides vital information for your safety.

Pay special attention to this chapter. The safety instructions and rules of procedure will help you to avoid hazardous situations and to perform the necessary work as safely as possible.

State of the art

The PMC®-R system components are manufactured in accordance with state-of-the-art technology and generally recognized safety standards and regulations.

You and others can nevertheless be exposed to dangerous situations e.g. as a result of environmental influences, machine damage or operator errors.

Do not make any alterations or modifications on the system components for the PMC®-R System. The devices may only be opened and worked on by the manufacturer.

The European directives and standards stipulated in this operating manual must be applied when using the gearbox in member states of the European Union (EU). When using the device outside the EU, the directives and standards valid in those respective countries must be observed.

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In addition to this operating manual, be sure to also observe the respective legal provisions and regulations for accident prevention in your country.

Observe the safety and accident prevention regulations: J Of the mine J Of the Mines Inspectorate J Of the mining supervisory authorities.

J When operating outside the mine, observe the regulations of

the respective supervisory authorities.

Further operating manuals Please read also the operating manuals for the components required for operation of the longwall, e.g. for electric motors, couplings, engine frames, chain tensioner devices, conveyors, devices at the rear of drives and block anchorages, as well as other nearby machines that can be affected by the control unit. Clarify any questions before starting work.

Personnel Installation and repair As a fundamental rule, installation work may only be carried out by personnel who have been adequately trained for these particular requirements. Repair work on the PMC® System components may only be carried out by manufacturer’s service engineers.

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2.3

Operating conditions Operating conditions Intended use The PMC®-R System was developed and produced for the control systems of shield support cages. Utilization of the PMC®-R System components in other control system tasks may not be carried out except in consultation with the Manufacturer.

Employ the PMC® system components only for their intended use!

Unauthorized use Applications not expressly listed as intended uses, and/or have not been made in consultation with the manufacturer, are unauthorized uses and are not allowed to be performed with the PMC®-R System.

DBT accepts no liability for any damage resulting from any such unauthorized use.

Prerequisites for operation Commissioning of the PMC®-R System is forbidden until it has been established that the machine that is controlled by the system is in compliance with European Directive 94/9/EC and the standard prEN1710.

As the equipment supplied is only part of an overall system, the operator is responsible for meeting the necessary safety requirements or installing the required safety systems for the devices/components not included in the scope of supply of this equipment and/or other devices/components required for operation.

These shall be marked in accordance with the legal provisions applicable at the time they are placed on the market (_ - Marking).

2.4

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Suitable measures must be taken by the operator to combat explosion hazards arising due to firedamp or ignition of dust which might occur in a mine.

These include: J Adequate and consistent ventilation J Planing path spraying system/water spraying system, etc.

If the mine gas concentration in the free cross section of the consistently ventilated areas of the face exceeds a certain percentage of the lower explosion limit (LEL) as defined in the respective national laws, the M2 equipment has to be de-energized.

It may only be restarted by an authorized person.

The atmosphere in the mine has to be monitored in the hazardous locations to permit disconnecting the power supply of all pieces of equipment except of those which are relevant for the safety and suitable for use in explosive atmospheres.

The M2 equipment has to be stopped at once and secured to prevent a restart if firedamp protection facilities are found to be damaged.

The deployment of PMC®-R components does not affect the safety regulations and firedamp protection stipulations relating to mining operations.

The controlling and periphery devices for the PMC®-R System are intrinsically safe and are made in accordance with the recognized regulations for this technology.

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Surrounding area conditions

Operating conditions The M2 equipment is only allowed to be operated when the safety requirements according to prEN 1552 have been met. These include, among other things: J Facilities preventing unauthorized starting J Start-up warning devices J Water spraying devices J Safe lockout command systems J Emergency stop systems J Dust collection devices J Anti-noise protection J Warning statements etc.

All electrical equipment required to operate the longwall shall be marked according to the legal provisions applicable at the time when it is placed on the market.

Safety instructions General information general

Always work with full concentration.

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Familiarise yourself with your working environment.

Protective gear

Always wear your personal protective equipment. An important part of this gear are hearing protection devices, because the noise emitted by the conveyor exceeds 85 dB(A).

Inform your co-workers of J Your exact location J The work you are performing J The amount of time which you will probably require.

Keep the signalling and lighting systems in a proper functional condition.

Observe the acoustic and optical start-up warning devices.

EMERGENCY STOP

Press the EMERGENCY STOP switch immediately in the event of faults or irregularities in operation. Report any peculiarity to your superior so that necessary measures can be taken immediately.

Press the EMERGENCY STOP SWITCH also when safety equipment such as firedamp protection facilities breaks down.

Never place body parts between components that can move against one another, e.g. conveyors and constructions, etc.

Storage and transport

Storage temperature

Do not store electrical components that contain batteries at temperatures under 15 °C. The control units of the PMC®-R System be stored for a maximum of 7 years without being connected to an electrical power supply.

The installed buffer battery will be empty once this period has elapsed. This battery must then be replaced.

Maintain the prescribed storage periods and temperatures and observe the instructions for storage.

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2.5

Operating conditions Do not store materials or parts in the travel way or in your working area.

Inform the persons involved about the intended transport route and the anticipated duration of the transport.

Transport safety devices

Ensure that the transport safety devices/packaging are correctly fitted. Never stand under unsupported parts or suspended loads.

Using attachment parts for the system

Do not use any items as brackets except the holding strips of the PMC®-R System. Do not damage any connector inserts or other fitting surfaces.

Installation and start-up

Inclined face

On inclined faces secure all component parts by chains, e.g. to the shield supports.

When working with oils, greases and other chemical substances, observe the safety regulations applicable to the product.

Environmental acceptability

Dispose of auxiliary materials which have been soiled with oil, grease or other chemical substances in an environmentally safe manner.

Inform the supervisory personnel and the face crew of any maintenance and repair operations that may be required. Give them information on the intended operations and the anticipated duration.

Securing

Secure your working area over a wide range, in order to avoid endangering other persons.

Secure the conveyor before all operations against unauthorized and unintentional restarting.

Replacing components

Stop and lockout the conveyor and the mining machine and preventfrom restarting before replacing any defective components.

Immediately remove defective components from the face in order not to hinder the face crew In addition, you thereby also avoid having these defective parts being accidentally reinstalled elsewhere.

Pass them on for servicing without delay.

In faces with inclines, secure spare parts e.g. with chains or hoists.

2.6

Original parts

Use only spare parts which satisfy the specified technical requirements. This is only ensured with original DBT / DBT Automation spare parts. Please refer to the spare parts lists for the order numbers.

Protective devices

Refit any protective devices removed immediately after completion of the work and check that they function properly.

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Do not undertake to perform repair work or modifications on the PMC®-R components yourself.

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Maintenance and repair

3

Storage and transport

Storage

Storage and transport This chapter includes important information on the correct storage procedures and on the safe transport of MCU components. By observing the notes and instructions, the service life and reliability of the system components is increased. If you read this chapter thoroughly, it will help to make your normal working day easier.

Storage Storage of the equipment Corrosion protection No direct exposureto sunlight

Moisture and dirt

Protect the equipment against direct exposure to sunlight. Store the electrical equipment, electronic components, spare parts made from rubber or plastic - such as seals, cables and hoses - only in closed rooms at temperatures of 15 °C to 25 °C. Protect all parts of the equipment against dirt and moisture. Take particular care not to remove blind plugs or blind plates. Avoid damage to the plug connectors. Use the blind plugs and caps if you wish to store the devices again after use.

Short-term storage

Do not ever store electronic equipment outdoors!

Long-term storage

After a storage period of 7 years the computers should be inspected, due to the installed battery being empty after this period of time. This battery must then be replaced. The inspection and the battery change should be carried out by DBT Automation service engineers.

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Components coated with corrosion inhibitor are protected for around six months.

After a storage period of approx. two years, an inspection of the system components must be carried out before use. This is to determine whether the measures taken and the method of storage has prevented damage.

Even with proper storage, seals, hoses and cables are subject to natural ageing. Do not use these components as malfunctions or ghost functions are possible.

Important!

Ensure that when storing any new supplies they are stored separately from existing stocks, and in such a way that computer components of similar age are stored together, so that version conflicts from different programming operations are avoided.

Make sure that when storing, the display foil, keyboard membrane and plug connectors are not damaged.

Transport Before transport Transport containers, dimensions and weights Be sure to observe the technical data sheet. You will be provided with information about:

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3.3

Transport J Dimensions J Weights

Important!

Load and transport the components carefully and with full concentration. Protect yourself against injuries caused by falling parts by wearing safety gloves and safety footwear.

The computers and interfaces, that belong to the same operating point, and are included in the MCU system, can be transported together in one transport container. You must, however, make certain that they are not packed together with heavy or sharp-edged materials, so that any damage to displays, keyboards, cables and plug connectors can be avoided.

The accompanying lines and hose cables must also be carefully packed and transported so that damage to plug and screw connections can be avoided.

The transport of electronic equipment in low temperatures (under -10 °C) should be carried out very carefully as all materials become brittle and fragile at low temperatures. This is why cables with a temperature of under +4 °C are not permitted to be laid. If cables and lines that cold are transported underground, they should be left to adjust to the warmth of the ambient temperatures before they are installed on site.

Line and cable connections have to be carefully protected when transporting abroad. The MCU devices must be packed carefully and secured for journeys overseas.

3.4

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Low temperatures

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Measures must be taken to avoid sudden impact loads during transport at low temperatures.

4

Installation

Electrical chain tensioner

Installation Important!

Incorrect installation can cause huge damage to control devices, periphery devices and the machines to be controlled.

When installing the PMC®-R System for the first time, do so only under the supervision of specialist personnel from DBT. The PMC®-R System is displayed for installation in the following drawings.

Electrical chain tensioner Fig. 1:

PMC®-R as ELECTR. CHAIN TENSIONER

13

14

6

12

4

1 10

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11 8

Bucyrus DBT Europe GmbH, Lünen 2008

5

7 7 2

9

15 3

1 = Chain tension PMC®-R rear side 2 = Valve connection strip 3 = Reed rod chain tensioner cylinder 4 = Voltage supply 5 = Pressure sensor chain tensioner cylinder 6 = Coding plug, longwall armour: 27 kOhm, stage armour: 15 kOhm 7 = Valve cable 8 = Valve strip cable 9 = Sensor cable reed rod 10 = Cable SKK24 - SKK24 Voltage supply 11 = Sensor cable pressure sensor 12 = HOSE CABLE SKK24-C 4X1,5MM2; L=800 13 = HOSE CABLE SKK24 2X2,5+2X1,5; L=5500 14 = PMC II2 BIDI COUPLER;ATEX 15 = PROTECTIVE CAP FOR OS-4

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4.3

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Electrical chain tensioner

4.4

Chain tensioner PMC®-R

5

Operation

The PMC®-R - control unit

Operation The PMC®-R - control unit Important!

Do not adjust parameters or other settings before you have studied the operating manuals for the PMC®-R System components and the operating manuals for machines to be controlled and adjacent machines.

Maintenance of the computers Only suitable tools are permitted to be used for maintenance work.

Generally speaking, the PMC®-R control unit computer is maintenance-free. Occasional cleaning of the display contributes to operating safety. If the keyboard foil is defective, then the computer should be dismantled without delay and moved above ground in order to replace the keyboard foil with a new one, in order to avoid any soiling of the switch contacts.

Important!

Soiled contacts can lead to malfunctions!

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Tightening the mounting bolts Bucyrus DBT Europe GmbH, Lünen 2008

The PMC®-R computers are each screwed down with a brass attachment strip which is in turn fastened on the shield or operating panel at a suitable place. The PMC®-R computer has two pressure springs on the back panel which press against the brass attachment strip in order to aid removal during disassembly.

Unequal tightening of one of the mounting bolts during fastening can cause the computer to go out of alignment with the brass attachment strip. This leads to damage to the connection contacts on both the PMC®-R and the connection cable.

Important!

Always tighten the mounting bolts in equal amounts!

General information The automatic chain pretension system was developed to adapt the chain pretension, or rather, the chain power, in optimum fashion to the respective conveyor conditions prevailing.

Contrary to this, when there is a face conveyor not equipped with this kind of a system, the chain pretension must be adjusted to the maximum possible loading condition, which means that it is much too high for 80% of all operating conditions, thereby increasing the wearing in the conveyor system considerably. Therefore, to avoid a distinctive slack chain formation, the chain pretension is, in any case, going to be higher than necessary for normal operation conditions.

The automatic chain pretension system tries, against this, to set the optimum chain pretension for all possible loading conditions, which ultimately leads to a recognisably longer service life or less wear and need for maintenance of the chain, chain drum and drive components.

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5.3

2. System overview 2. System overview The electric base system comprises essentially of a pressure sensor and a path measuring rod, both connected with the electrohydraulic control unit, which, mounted on the tail-end drive in the vicinity of the hydraulics for the tensioning system, executes the pretensioning control by means of one or several hydraulic tensioner cylinders.

The control unit itself is comprized, on the other hand, of the “PMC®-R” single control device known from face automation, which controls a double solenoid valve by means of a valve control strip which triggers the movements of the tensionable drive frame. The PMC®-R control system is equipped with different numeral communication connections to connect with an underground host computer (conveyor signal interface) and/or with the last face shield (end of the longwall) for transmitting the location of the mining machine.

Chain tensioner with PMC®-R

Fig. 2:

2

1

4 5

6

1

8 9 7

1 = Tail-end drive 2 = Head-end drive 3 = Pressure sensor 4 = Reed rod 5 = Valve block 6 = Power supply 7 = PMC®-R Control units 8 to the host computer 9 to the longwall

The function of the system is based on the pressure measured in front of the check valve for the tensioner cylinder which is recorded by the pressure sensor and equivalent to the chain power.

A “Pressure holding automatic sequence”, called controller and based on the absolute value of the tensioner cylinder pressure, it leads to satisfying results providing the pressure increase or pressure drop caused by external circumstances (friction in the tensionable drive frame, mechanical back pressure due to pile-ups etc.), is lower than the pressure caused in the tensionable drive frame by the chain pretension.

The system has been expanded to include a flush function in order to maintain the chain power at an optimal level, even under the most unfavorable conditions, and to work against any slackening of the chains (e.g. also caused by differing lengths of chain sections).

5.4

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

E

3

System parts

System parts The pressure sensor The pressure sensor measures the piston-sided cylinder pressure in front of the check valve and converts it into a current signal for reading into the control device.

The path measuring rod The path measurement staff, known for short as the reed rod, is used to measure the extension length of the tensioner cylinders.

It can be mounted in the cylinder itself, or externally on the tensionable drive frame. The cylinder position is converted into an electrical voltage signal to be read into the control unit.

The conveyor signal - interface The following possibilities are available for transmitting the necessary prewarning and switch-on signals from the chain tensioning system to the automatic mode: J The chain tensioner is operated entirely without external control

system signals. The regulation is determined in this case solely by the value of the pressure in the tensioner cylinder.

E

J The chain tensioner is connected with an LWC Interface (Long

Bucyrus DBT Europe GmbH, Lünen 2008

Wall Control Interface) via the B1 Port. The system obtains information concerning the status of the conveyor via this module. The status information and the signal “Conveyor is stopped” as well as the ”Start-up signal” and the “Run signal”.

J Digital data transmission is carried out via serial

communications interface.

Communications are handled in general in accordance with the Mining Operations Publication [Bergbaubetriebsblatt (DUST)].

Both the conveyor initiation and/or start signals and the feedback per enablement bit are transmitted by these two-directional data communications. If the conveyor is equipped with CST gears, then the conveyor status can also be provided by one of the PMC®-D computers belonging to the CST - System via data communications. A second communications interface can also be operated. This connection then exists with a face end shield. Both the location of the mining machine as well as the control signals for the jack cylinders can be transmitted via this interface.

The various communications variants can be adjusted by parameterization.

The starting procedure for the FACTS System should always be carried out in the following steps: J The conveyor start-up warning is switched on and serves as a

signal for the automatic sequence to initiate the pretensioning procedure. If a PMC®-D computer is used for signal generation, then the transmission of the prewarning signal will take place at the moment in which the motors start up.

J Once the prewarning signal has been received, the PMC® -R

activates the pretensioning procedure. The cylinder pressure is raised for as long as it takes to achieve a preset pretensioning pressure and a parametered pretensioning path have been achieved.

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5.5

System parts J Once these values have been achieved, the PMC® -R activates

the enablement bit and waits for the arrival of the conveyor start-up signal.

J After the conveyor start-up enablement has been received, the

host computer starts the conveyor and signals this by activating the conveyor start-up relay (and/or by sending the corresponding telegram).

J The start-up procedure is complete once the conveyor start-up

signal has been received, and the PMC®-R starts the actual automatic chain tensioning system.

J The host computer switches off the conveyor and sends the

corresponding telegram to announce this to the PMC®-R.

J Once the shutdown signal has been received, the PMC® -R

The electric power supply Every control device is supplied via its own electric power supply with a direct voltage of 12 V. An auxiliary supply through the power supply for the face control system is not recommended, because the conveyor should still be capable of running even when there is a failure in the face control system.

The valve block The electrohydraulic valve block consists of the hydraulic control system, which is used to retract or extend the cylinders, and a double solenoid valve which, triggered by the valve strip on the PMC®-R control system, effects the conversion of the electric control signals in the hydraulic system.

The PMC®-R control unit computer Mounted on the tail-end drive, the control unit computer forms the heart of the tensioning system. It processes the electric measurement values of the connected sensor system and controls the tensioner cylinder according to the automatic tensioning sequence.

A special program differentiates this special PMC®-R control system from any other longwall control devices that may be present.

On the basis of the plugged-in codeplug on sensor port B2 (Codeplug 2, Codeplug 3), the control unit computer distinguishes whether it is being operated as a tensioning system on the tail-end drive in the longwall or as a stageloader in the entry. All other statuses are invalid.

5.6

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

If an error occurs during the running time of the automatic sequence which prevents the orderly progress of the automatic sequence, then this will be signaled by the PMC®-R by resetting the enablement bit. A conveyer shutdown can be carried out at this point in order to avoid damage. The reason for the shutdown is announced in the display of the PMC®-R, as well as in the corresponding telegram. A signal will also appear to indicate whether or not the fault led to a shutdown of the automatic mode.

The automatic mode must then be enabled once again as necessary, either manually or via data communications.

E

switches off the automatic sequence and waits for the next start-up signal sequence. The sequence is then restarted accordingly.

Operation of the PMC®-R control unit Operation of the PMC®-R control unit The PMC®-R control unit; overview of the keyboard and menu functions 19 keys, a 2x22-digit alphanumeric display, a numeric keyboard with 10 keys, a local blocking switch, a local emergency shutdown switch, a warning LED and the stop pushbutton are placed at the front side of the control unit. A detailed description of the function of the individual elements follows below.

The operating panel consists of keyboard, display and LEDs. Operating panel of the PMC®-R as chain tensioning control unit

Bucyrus DBT Europe GmbH, Lünen 2008

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Fig. 3:

Important!

Do not operate the PMC®-R until after you have first carefully studied the operating instructions!

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5.7

Operation of the PMC®-R control unit Keyboard allocation for the PMC®-R Program Individual keys are assigned the following functions in the software: Tab. 1: Key functions of the PMC®-R as chain tensioning control unit

5.8

Work mode

Entry mode

No function

Extend tensioner cylinder by hand, tension the chain

No function

No function

Retract tensioner cylinder by hand, No function slacken the chain

No function

Tensioning the chain around a defined tensioning path

No function

No function

Slackening the chain around a defined path

No function

No function

Flushing

No function

Selection of the work mode.

Press <START>

No function

No function

No function

No function

No function

Selection of a control function

No function

No function

Selection of a control function

No function

No function

Switchover to the left-hand menu column

Switchover to the left-hand menu column

Delete last character entered

Switchover to preceding menu lines

Switchover to preceding menu lines

Switchover to preceding menu lines

Switchover to following menu lines

Switchover to following menu lines

Switchover to following menu lines

No function

No function

Selection of the function shown in the display

Shows the last menu line displayed.

No function

Selection of the function shown in the display

Selection of the right-hand menu column

Selection of the right-hand menu column

Selection of the right-hand menu column

Stopping at automatic sequence

No function

No function

E

Idle mode

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Key symbol

Operation of the PMC®-R control unit Key symbol

Idle mode

Work mode

Entry mode

Initiation of the entry mode

No function

Entry confirmation

No function

Start of automatic sequence

No function

Display: date/time of day

No function

No function

Language switchover

No function

No function

No function

No function

Entering the numeral 0

Tab. 2: Direct selection using the buttons on the keypad Idle mode

Work mode

Entry mode

Used for reaching the SYSTEM PARAMETERS column.

No function

Entering the numeral 1

Used for reaching the SERVICE column.

No function

Entering the numeral 2

Used for reaching the Default menu column.

No function

Entering the numeral 3

Used for reaching the FLUSH.PARAMETERS column.

No function

Entering the numeral 4

Used for reaching the BLOCKING FUNCTIONS column.

No function

Entering the numeral 5

Used for reaching the PRESS.AUTO. PARAM. column.

No function

Entering the numeral 6

Used for reaching the Measurement value column.

No function

Entering the numeral 7

Leads to the AUTOMATIC SEQ.SELECTION column.

No function

Entering the numeral 8

Used for reaching the ERROR MESSAGES column.

No function

Entering the numeral 9

Bucyrus DBT Europe GmbH, Lünen 2008

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Key symbol

Changing program parameters Several menu points show the running time of variable values, so called program parameters. Such values are marked with a star in front of the data value (*).

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5.9

Operation of the PMC®-R control unit The T [ENTER] key must firstly be pressed to change a displayed parameter value. Should a question mark (?) appear, then the numeric entry mode is activated. In this connection, several keys have a special function which deviates from their normal function: J Numeric entries can be carried out using keys 0 to 9.

J The K [<<] key serves to delete a single entered numeral.

J The T [ENTER] key must be pressed again to end the entry.

After that, the entered value is automatically saved as a new parameter value.

J The S key can be used to abort the entry and return to the

normal mode.

Several parameters (such as the automatic sequence type) are text parameters. These can be changed in their value by the P [↑] key.

The new parameter value is automatically saved without the T [ENTER] key having to be pressed additionally.

Most parameters are password-protected. The correct password must be entered numerically before these parameters can be changed.

Password: ?

J The password is a normal numeric value and can be entered by

using the keys 0 to 9.

J For every entered digit of the password an exclamation mark (!)

appears in the display, the actual number entered is secret and is not shown.

J A single numeral can be deleted using the K [<<] key.

J The S key can be used to abort the parameter entry without the

correct parameter entered. Albeit, a parameter modification is not then possible.

J The T [ENTER] key is pressed to end the password entry after

the password is correctly entered. Now the parameter selected previously is displayed together with a question mark (?) behind the parameter text. Now the parameter value can be entered numerically as described above.

J If an incorrect password has been entered, a question mark

appears, in turn, and the entry must be repeated.

J If a key is not pressed for a certain period of time, then the

entry mode will be aborted automatically and the default menu column will be displayed.

5.10

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

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The password prompt appears automatically every time an attempt is made to change a protected parameter when pressing the T [ENTER] key. There appears then in the display:

Operation of the PMC®-R control unit Display Idle display Fig. 4:

Idle display

PRS Wa P 270 305 : : : PMC-R : : : PRS = pressure stop mode is active Wa = The automatic sequence is in waiting status.

P

= pretensioning signal has been received, automatic mode waiting for run signal

270 = pressure in the tensioner cylinder 305 = tensioning path of the chain tensioner device

E-STOP Fig. 5:

Emergency OFF display

Emergency stop No. 1

Emergency OFF at control unit 1

Bucyrus DBT Europe GmbH, Lünen 2008

E

: : : PMC-R : : :

Local shield support blocked switch (black) (see Emergency OFF) If a PMC®-R has no neighbours, then NAVL (not available) will be displayed at the respective position.

Display of non-connected or defective sensors Fig. 6:

defective or non-connected sensors

PRE ?? # ~~~ ~~~ : : : PMC-R : : : PRE = pretensioning cycle is active ?? = not permitted # = fault in the serial connection, line error ~~~ = no pressure sensor ~~~ = no path sensor

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5.11

Operation of the PMC®-R control unit

Menu 1.1

Menu 2.1

Menu 3.1

Menu 4.1

Menu n.1

Menu 1.2

Menu 2.2

Menu 3.2

Menu 4.2

Menu 2.n

Menu 1.3

Menu 2.3

Menu 3.3

Menu 4.3

Menu 3.n

Menu 1.n

Menu 2.n

Menu 3.n

Menu 4.n

Menu n.n

The corresponding menu column is selected with the keys K (column to the left) and R (column to the right). The following list shows the headings of the menus.

Scrolling up and down in the menus is done with the keys L and M. The 44-digit LED display is used to indicate measured values, system conditions and program parameters.

In order to display all this information in a single 44-digit display, a display menu has been created with 13 different text columns with a varying amount of single lines.

Every menu column comprises of a menu heading that is displayed when changing the menu column and, as required, a varying number of text messages, parameters or measured values.

If a keyboard action is not triggered, the display returns automatically to the top line of the default menu column (DEFAULT DISPLAY) after a short period of time (if this is not already displayed).

Parameters that are displayed only in dependent relation to other parameters have a light blue background.

Tab. 3: Table of the display menus Part 1 DEFAULT DISPLAY

ANALOG INPUTS

PRES.AUTO PARAMs

SYSTEM PARAMs

HISTORY ERROR

ERROR MESSAGES

SERVICE

IDLE - 128 91

Pressure: 255 Bar

P_hold 0 * 75

P_pretension * 100

0 no errors

none

boot to << >>

Targ. press: ~~~

P_hold 1 * 90

S_pre-extend * 30

5.12

boot facewide(P)

Chain tensioner PMC®-R

E

Menu structure

Bucyrus DBT Europe GmbH, Lünen 2008

Fig. 7:

Menu structure in the PMC®-R (columns from left to right)

Operation of the PMC®-R control unit ANALOG INPUTS

PRES.AUTO PARAMs

SYSTEM PARAMs

Cyl. Ext.: 320 mm

P_hold 2 * 105

Startingtime * 2000

pmc reset (P)

Mot.current: ~~~

P_hold 3 * 120

Valvetime * 1000

destroy prog.(P)

LWC SGNL: running

I_Switch0 * 40

Delaytime * 10

CTS China 01_01_00

LWC Value: 3798 mV

I_Switch1 * 60

Serial link *1

code number *2

Shearer pos: ~~~

I_Switch2 * 80

Comm Typ *1

LTime:

fl. in

I_Switch3 *100

DUST BAUD *0

Lmi 32

shieldno w1 *75

DUST BCC consider *1

Cal. Beeper (P)

shieldno w2 *150

DUST priority *0

shieldno w3 *200

ACD BAUD *0

weigh fact1 *100

ACD priority *0

weigh fact2 *100

No ext. shtdn. *0

weigh fact3 *100

Min stroke * 10

P_hyster. * 9

Max. stroke * 490

P_lo_hyster. * 9

Reed rod typ *0

T_max.idle* 0

Max. warning * 485

Retry count * 10

Min. warning * 25

Min.ext.str. * 20

Autom. restart *0

T_Extend * 200

Mastertime *600

T_Retract * 200

T_Wflush *20

T_PostRet * 60

T_Wdelay*120

1 min

Bucyrus DBT Europe GmbH, Lünen 2008

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DEFAULT DISPLAY

HISTORY ERROR

ERROR MESSAGES

SERVICE

14

10 Lma

T_Wait * 200 0 d

X

0

0

Tab. 4: Table of the display menus Part 2 DIAGNOSTIC

PROHIBIT ACTIONS

AUTOMATIC TYPEs

AUXILIARY FCTS.

STATUS111

SD status: 0000

reed rod

ON

Lock autostart

*0

fl. valve 1

status

V:12 4 0000000

count shtdn

ON

Ignore press

*0

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ON

ScuType

101

5.13

Operation of the PMC®-R control unit DIAGNOSTIC

PROHIBIT ACTIONS

AUTOMATIC TYPEs

AUXILIARY FCTS.

STATUS111

Curr B+C:

9

comm. shtdn

ON

Skip prestart

*0

ScuType O 101

Curr Scu:

123

stroke shtdn

ON

Water flush

*1

ScuType > 255

Curr Out:

1

weight fact.

ON

Start aft.tout

*0

ScuType < 255

Curr Nam:

0

Volt.Scu:

12029

Volt.Out:

12054 0

0

PI-ID-No. PI

18

*18 0

0 0

PI-T 0

0 0

0

PO-T 0

0 0

0

AS9 0

0

0

PI-ID-No. AI

20

0

*20 0

0 0

0 0

0

AO-T 0

0 0

0

TA1 R:

0T:

6

TF1 R:

0T:

6

A1

0

0

0

F1

0

0

0

R_INT

0

0

E_A1F1

E

AI-T 0

0

0

E_RXD_INT

0

E_HIL

0

0

E_HIR

0

0

Cl.hdlc

(N)

Bucyrus DBT Europe GmbH, Lünen 2008

PS9 0

DB : 0 hex

Cl.hdcl_all (N) Copy.HDLCINF(N) A1S 0

0

0

F1S 0

0

0

1<F 2 A> OEQ:2 NEQ: 0 \FlashBooter-R_00_0 5_03.dbtpmc 20/04/05 17:07 BOOTERCRC: e963 \universell_01-01_00. dbtpmc 15/12/05 11:20 APPL.CRC: d15a

5.14

Chain tensioner PMC®-R

Operation of the PMC®-R control unit DIAGNOSTIC Date: Time:

PROHIBIT ACTIONS

AUTOMATIC TYPE‘s

AUXILIARY FCTS.

STATUS111

15/12/2005 12:15:30

DISP br.

–

+

code value

2

Ver. Flashloader 0M 0S 0R Ver. Booter 0M 0S 0R Ver. Apilib 0M 16S 5R Ver. BaseLib 0M 16S 5R Ver. FPGA1 2M 1S 0R Ver. FPGA2 2M 1S 0R Ver. CalibData 5M 0S 0R

Bucyrus DBT Europe GmbH, Lünen 2008

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Ver. DispBooter 0M 0S 2R Ver. DispAppl 4M 0S 8R Ver. VentBooter 0M 0S 0R Ver. VentAppl 2M 0S 4R IO S:

0 R:

0

The “DEFAULT DISPLAY” is always displayed when no key actuation has been carried out and the master time has expired. It displays the compressed system status of the chain tensioning system. In addition to the current measured values of cylinder pressure and cylinder path, these also include information regarding the currently operated automatic mode, the condition of the conveyor and/or of the serial data coupling.

The “MEASURED VALUES” Menu displays the signal level and/or the logical statuses of all signal transmitters connected with the sensor inputs of the PMC®-R. Those values shown in the PRES.AUTO.PARAMs and SYSTEM PARAMETERS columns can be modified (programmable; program parameters). By changing these parameters, the rule of action can be changed by the user during program runtime.

All programmable display values are marked with a star [*] immediately in front of the value.

The reasons for the last 20 errors that led to a shutdown are displayed in the “HISTORY ERRORS” lines.

The “ERROR MESSAGE” lines display a list of errors that were generated because of sensor and signal errors. The errors can be acknowledged (Key T).

The SERVICE COLUMN contains some service displays and/or actions, several global system parameters and measured values.

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5.15

Operation of the PMC®-R control unit The “DIAGNOSTICS” column displays values and information for monitoring the system.

The “PROHIBIT ACTIONS” column displays a list of ON/OFF parameters with which the system can be set.

Several parameters for the automatic mode sequence can be set in the “AUTOMATIC TYPES” column. In addition, one of three shutdown actions can be programmed.

Menu call ups through menu keys The following menu keys are available for switching between the various menu points: Tab. 5: Menu keys Designatio n Key

Function

Key K

Selects the left-hand menu column, should there be one, as seen to the of the current menu point.

Key R

Selects the menu column, should it be present, as seen to the right of the actual menu point.

Key L

Selects the upper menu line, should it be present, to the actual menu point.

Key M

Selects the lower menu line, should it be present, to the actual menu point.

Tab. 6: Speed selection keys Designatio n Key

Function

Key 1

Direct selection of the SYSTEM PARAMETERS column

Key 2

Direct selection of the SERVICE column

Key 3

Direct selection of the STANDARD MENU column

Key 4

Direct selection of the FLUSH PARAMETERS column

Key 5

Direct selection of the BLOCKING FUNCTIONS column

Key 6

Direct selection of the column PRESS.AUTO: PARAMETER

Key 7

Direct selection of the MEASURED VALUES column

Key 8

Direct selection of the column AUTOMATIC SEQ.SELECTION

Key 9

Direct selection of the column ERROR MESSAGES

Example for menu actions:

Action: Changing the pretension pressure parameters “P_pretension” in the SYSTEM PARAMETERS column.

J By using the menu keys:

Start condition:

The default menu column is active.

. Press R three times (3 menu movements to the right) to reach the SYSTEM PARAMETERS column.

In the display now is: SYSTEM PARAMETERS

5.16

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

By using the 9 keys for the numeric keyboard, all the menu columns of this program can be jumped to directly. These keys have a deviating function for the numeric entry of parameter values.

E

Menu call ups through speed dialing keys

Operation of the PMC®-R control unit . Actuate key M once in order to scroll down one menu line.

The P_pretension parameter is reached.

In the display now is: P_pretension *100

. Press key T [ENTER] in order to start the input mode.

The Pretens.press. parameter is password-protected, therefore the display now shows: Password: ?

. Enter the password (e.g. 3333) using keys 0 to 9.

In the display now is:

Bucyrus DBT Europe GmbH, Lünen 2008

E

Password: ?!!!!

. Actuate the key T [ENTER] to exit password entry. Now the parameter value can be changed.

In the display now is: P_pretension ?

. Entry of the new parameter value using keys 0 to 9 (e.g. 120).

Display:

P_pretension ?120

. Press T [ENTER] key to end the entry and to save the entered value.

The display now shows: P_pretension *120 If no further key is pressed, then the display returns to the default menu column after a short period of time.

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5.17

Operation of the PMC®-R control unit J Using speed dialing keys: Start condition:

The default menu column is active.

. Actuation of the speed selection key 1 in order to reach the SYSTEM PARAMETERS directly. In the display now is: SYSTEM PARAMETERS The next actions correspond with the above-mentioned points.

Overview of the menu displays: PRS St - 280 315 Only one line in this column Display form

xxx yy - nnn mmm Automatic mode not active

PRE

Pretensioning cycle is active

PRS

Pressure stop mode is active

CAL

The calibration mode is active (only the stageloader)

J Displays the status of the activated automatic sequence.

Possible values are:

St

The automatic sequence is activated and waits for conveyor start-up (starting signal).

Wa

The automatic sequence is in waiting status.

Depending on the automatic sequence in operation, the elapse of a period of time or the occurrence of a certain condition can be waited for.

Me <> >< || ??

The automatic sequence is in its measuring loop.

The automatic sequence is currently extending the tensioner cylinders.

The automatic sequence is currently retracting the tensioner cylinders.

The roller is located in the blocked section Not permitted

J - The next symbol displays the momentary status of the

conveyor. Possible values are:

P The pretensioning signal from the PMC®-R has arrived, the cylinder will be/is pretensioned. The automatic sequence waits for the run signal of the conveyor. o The conveyor is running. The automatic sequence is active and attempts to maintain the target pressure.

E Error in the serial connection to the PMC®-D. No valid command telegram will be received. #

Error in the serial connection to the PMC®-D. Line error.

280 The first numerical value displays the pressure detected in the tensioner cylinder. In this example: 280 bar.

5.18

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

IDLE

E

J xxx Displays the currently activated type of automatic system:

Manual control of the system 315 displays the path of the tensioner cylinder. In this example: 315 mm. If no reed rod is connected, then ‘~~~’ is displayed.

Manual control of the system The functions described here give the user full manual control over the tensioning system. The hand functions are designed as so-called dead man’s control, that means the assigned valves are only actuated for as long as the assigned key is pressed down.

When the key is released, the valve is switched off.

The application of the manual functions is only then possible if the automatic sequence is switched off, because the automatic sequence would take back control from the manual control procedures executed.

To enable manual use or to enable semiautomatic functions, the H or I [Select Funct.] keys must be actuated first.

After this, the LEDs for the H and I keys light up and the “Select function” message appears in the display to confirm the successful enablement of the key functions.

This procedure (defined actuation of two keys for the execution of a function) shall ensure that no inadvertent movements of the tensionable drive frame can be triggered.

Bucyrus DBT Europe GmbH, Lünen 2008

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When the above message is displayed, or the LEDs of the keys H and I light up, then it is possible to extend the tensioner cylinder manually by pressing and holding the A key, as long as the key remains pressed down. The following then appears in the display: Tension 111 222 The left part of the numeric display value shows the mean value of the cylinder pressure [bar]. The right part of the value corresponds with the extension length of the cylinders [mm].

The tensioner cylinders are manually retracted by pressing the B key. The following then appears in the display: Release 111 222 The meaning of the numeric values are the same as described above.

If a key is no longer pressed after the execution of manual adjustment, the display returns to the standard menu column after a short period of time.

Enabling automatic sequence operation If the control system is supplied with power and the automatic sequence is enabled, the program waits for the appearance of the conveyor prewarning or start-up signal to activate the control.

The user can recognise the circuit arming for the automatic sequence by the status of the LED in the F key. If the automatic sequence is active or ready for start-up, the LED will flash.

Otherwise it is switched off.

If an error appears which causes an automatic shutdown of the automatic sequence, then this must be enabled by the user again (after failure corrective action). This can be brought about either by remote serial data communication or by the key entry described below.

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5.19

Enabling automatic sequence operation The activation key F (F = key without function image) is used to enable the preset automatic mode locally. After the key has been actuated, the text: press <START> will appear in the display.

As long as this text is displayed, the automatic sequence can be enabled by pressing the START (U) key. The “Prog. starting” now appears until the master time has finished. No cylinder movements whatsoever are executed within this period of time and the user can switch off the automatic sequence again by pressing the STOP (S) key, in cases where the automatic sequence has possibly been started inadvertently. Otherwise, the automatic sequence is circuit armed (if no sensor errors are present) after completion of this time period (approx. 10 s).

If an error is discovered during the activation phase, the automatic sequence is not enabled and the red warning lamp starts to flash.

The error established is shown in the display (instead of the default menu column) and saved in the program. The saved error messages can be queried and deleted in the ERROR MESSAGES menu column. The display of the error text instead of the default menu can be deleted by pressing a random key. Albeit, the red warning lamp continues to flash until either the error is called up or deleted in the error column, or the automatic sequence (after failure correction action) is restarted.

Example for enabling the automatic sequence:

Start condition: The default menu is displayed.

. After the F key is pressed, there appears in the display: Press <START>

. Actuation of the START key.

In the display appears the text: “Prog. is starting” and the LED in key F begins to flash and display that the automatic sequence is enabled and ready for the next conveyor start-up.

Interrupting and switching off the automatic sequence functions There are three different options for interrupting and blocking automatic functions, or blocking all valve functions: J The first option, subject to the lowest priority, is the actuation of

the Stop key.

J The second option is the black pressure switch, called the local

blocking switch, located in the bottom right-hand corner of the front of the keyboard for the PMC®-R.

J The third option, and seen with the highest priority, is the red

pressure switch, called emergency stop switch, located in the top right-hand corner of the front of the keyboard for the PMC®-R.

5.20

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

The automatic sequence is switched off after pressing this key and the text “Automat. is off”. appears for a short time in the display.

Furthermore, the LED in key F will be switched off.

E

The normal way to deactivate an automatic sequence is by pressing the Stop key.

The automatic sequence functions The function of the <Stop> key Whilst the automatic sequence is active, the “Stop” key can be used to interrupt the action just executed and to switch off the automatic sequence. The valves are switched off in accordance with the program, and the conveyor release relay or matching communication bit is switched off to signal that the automatic chain tensioner system has been put out of action.

J The restarting of the automatic sequence can be carried out via

remote data communications or by actuating Key F.

J Whilst the numeric entry mode is active, this key can be used to

abort the entry and to leave the old parameter value unchanged.

J In every other case, the valves are shut down when the Stop

key is pressed, and the display returns back to the default menu column after a short period of time. Manual or partly automatic functions are aborted.

The function of the local blocking switch

Bucyrus DBT Europe GmbH, Lünen 2008

E

As long as the local blocking switch (black pressure switch at the right-hand bottom corner of the keyboard) is pressed, all automatic sequence functions will be suspended. Valve control is connected without current, the conveyor enabling signal is switched off and the text appears in the display <locally blocked>.

Should the switch be withdrawn again, the automatic sequence will be -if it was previously activated - automatically enabled again and waits for the next conveyor start-up or immediately activates the controller if the conveyor is still running or is already running again.

The function of the emergency stop switch The emergency stop switch (red blocking switch in the top right-hand corner of the keyboard) switches off all control system and keyboard functions. Electrical power is switched off to the valve activation, the conveyor enablement signal is switched off and the text >>>GESP: <<< ( >>>locked<<<) appears in the display.

When the switch is enabled again, the automatic system is once more initialized. Restarting the automatic sequence must be executed per data remote communication or by pressing the F key as described in Chapter 3.

The automatic sequence functions After an automatic mode has been enabled, the program waits at first for the signalling of the conveyor start-up before the controller is active. The selection and release of the automatic sequence is described in the following.

The global function sequence for automatic operation normally ensues in the following sequence: J (1) Pretensioning cycle before the conveyor is started up.

J (2) Automatic pretensioning control during the running time of

the conveyor.

J (3) Execution of the preselected shutdown function when the

conveyor is shut down.

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5.21

Selection,enabling,activationanddeactivationoftheautomaticsequence The sequence of the pretensioning cycle is described in detail in the next Section.

The program is equipped with a method for an automatic chain pretensioning regulator for the purpose of regulating during the conveyor run time. The automatic pressure maintenance system has undergone further improvements.

The automatic pressure maintenance system is based on the measurement and regulation of the absolute pressure in the tensioner cylinders that is proportional to the chain power. In principle, only a pressure sensor for measuring pressure in the tensioner cylinder and a reed rod for the cylinder path need to be installed in order to carry this out.

Selection, enabling, activation and deactivation of the automatic sequence Starting and stopping the automatic sequence The key sequence <F>, <Start> serves to start the automatic sequence.

Selection of an automatic sequence method Only the pressure stop mode remains integrated in the chain tensioning program. Switchovers to other types of automatic tab sequences are no longer possible for this reason.

The pretensioning cycle can always be initiated with every start of the conveyor, even without any functional sensor systems, but then in a heavily limited scope (time controlled).

The automatic start-up (pretensioning cycle) The following pretensioning cycle is activated before the start of the automatic control system: (1) The Conveyor is not running, ‘-’ is displayed. The control system is inactive and is waiting for the conveyor prewarning message.

If this is received, then the cycle is continued at (2).

(2) ‘A’ is displayed and the control unit compares the measured cylinder pressure with the value prescribed by the “Pretens.press.” parameter in the SYSTEM PARAMETERS menu: J If the cylinder pressure is below the value of “Pretens.press,”

then the tensionable drive frame is extended until

– if the cylinder pressure is greater than/equal to “Pretens.press.” and the minimum pretensioning distance has been achieved. The cycle is then continued at (3).

– the time parameter Pos.time runs out without the pretensioning pressure being reached.

5.22

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

Important!

Only the emergency stop button, may be used to safely block restarting, because the stop button not only cancels all the automatic functions, but also switches the valve control strip voltage-free.

E

The Stop key or the red emergency stop switch needs to be actuated in order to deactivate the automatic sequence.

The automatic start-up (pretensioning cycle) This can be caused by mechanical, hydraulic or electrical faults.

But it is also possible that the setting time has been selected too low.

– The automatic sequence is shut down, the conveyor enabling signal remains shut down, the error message “start.pos.time” is displayed, a corresponding error message is saved and the warning lamp starts to flash.

– The “Conveyor off” signal is received.

This means that the start-up procedure has been stopped. The momentary action is aborted and the cycle restarts at (1).

J If the pressure is greater than or equal to “Pretens.press”, then

the cycle will continue at (1).

(3) The PMC®-R sends the conveyor enablement signal, but continues tensioning further until either the J pretension path has been travelled or the setting time has

elapsed, and waits until

J the conveyor is started and the “Conveyor is running” signal is

received. ‘o’ is displayed and the cycle continues at (4).

J the time parameter “Signal time” runs out. A corresponding E

error message is then saved and cycle (3) is continued despite Timeout.

Bucyrus DBT Europe GmbH, Lünen 2008

J the “Conveyor off” signal is received. This means that the

start-up procedure has been stopped. The conveyor enabling signal is reset and the cycle restarts at (1).

(4) The controller is activated after completion of the time parameter Start delay.

Three additional parameters in the AUTOMATIC SEQ.SELECTION column can influence the running of the start-up procedure: J “Ignor. pressure”.

If this parameter is set to ‘1’, the control system ignores a possibly erroneous pressure sensor during the pretensioning procedure, and tensions only with time control (setting time parameter). After this, the pretensioning cycle continues as if the pretensioning pressure has been reached.

This mode is not recommended and only makes sense if the chain sensor automatic system is to be travelled and the pressure sensor is recognized as defective.

J “No pretens.”.

If this parameter is set to ‘1’, the pretensioning cycle is not executed. If the “Conveyor is running” signal is received, the automatic sequence starts immediately after completion of the start delay - time parameter.

If the parameter is set to ‘1’, the conveyor enabling signal is providing the automatic sequence is enabled and not switched off because of an error - continuously switched on to signal that the automatic sequence is ready to start at any time.

If the “No pretens.” parameter is set to ‘1’ and the automatic sequence mode is set to “inactive”, the automatic sequence will not be started up. The use of the F key is ignored by the program.

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5.23

The automatic sequence operating modes J “Start without sig.”

If this parameter is set to ‘1’, only one of the two signals “Conveyor is running” or “Prewarning” is needed to trigger the start-up of the automatic sequence. After reaching the pretensioning pressure and subsequent completion of the signal time, the automatic sequence is then activated time-controlled.

These parameters can only be set to ‘1’ or ‘0’. Other entries are ignored.

The automatic sequence operating modes The actual automatic sequence for regulating the chain pretension is started after the pretensioning procedure has been completed.

A more detailed description of the automatic sequence operating mode is provided below.

If the chain tensioner is operated as a single device, meaning that it has no serial connection with a higher-level control system, then the control system will attempt to maintain the calculated target pressure value, which is formed from the parameters Hold pressure 0 and Hold pressure 3.

A considerably more elegant method is the one by which information concerning the conditions at the conveyor are obtained from a higher-level control system. For this, one connects the chain tensioner via serial interface to a gear control unit (DUST), e.g. at the PMC®-D. This can now, on the one hand, operate the chain tensioner via control commands and, on the other hand, influence the control system with the aid of process values. The electrical power values of the face conveyor are transmitted to the chain tensioner for this purpose.

The chain power translates into the power consumption of the conveyor motors. An empty conveyor consumes only a small amount of electricity, because it essentially needs only to overcome the weight of its chain and the frictional forces resulting from it, while on the other hand a fully loaded conveyor results in a high electrical power value, because now the crude ore also needs to be moved. The entire voltage range is divided up into three linear curves, that can however have different pitches, as a result of the parameters i_Switch 0 (empty conveyor) I_Switch1, I_Switch2 and I_Switch3 (full conveyor) and the associated pressure values Hold pressure0, Hold pressure1, Hold pressure2 and Hold pressure3. The incoming electrical power value is first sorted into the corresponding voltage range and then calculated using the associated pressure parameter of the target pressure.

5.24

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

The pressure holding automatic sequence is based on the measurement and control of the absolute pressure in the tensioner cylinders proportional to the chain power to a calculated target pressure through parameters “Hold.press.0” or “Hold.press.1”, “Hold.press.2” or “Hold.press.3” found in the “AUTO PRESS. PARAM.” column.

E

The pressure holding automatic sequence

The automatic sequence operating modes A further possibility for refining controls is obtained when one includes a weigh factor dependent on the position of the mining machine in the control system. One requires an additional serial interface to a face end shield for this purpose which transmits the position of the mining machine to the chain tensioner on a continuous basis. The longwall is now divided up in to several position areas. These areas are assigned weigh factors. The control unit now calculates the corresponding weigh factors (linear slope function) on the basis of the position transmitted and biases the previously calculated target pressure with this weigh factor. All weigh factors are preset to 100% after a new installation.

If the current electrical power level lies outside of the parametered control range, i.e. if it is less than I_Switch0 or greater than I_Switch1, then the automatic sequence will prevent the retraction of the tensioner cylinder until the electrical power value is once again in the valid range. This is intended to prevent a situation whereby a sudden increase of pressure in the cylinder would contribute to the formation of a slack chain, because a sudden elevation in pressure in the tensioner cylinder would bring about a lowering of the actual pressure to the target pressure (cylinder retraction).

Should the actual pressure leave the pressure range specified by the hysteresis parameter and target pressure, then the controller will again attempt to regulate the target pressure.

Bucyrus DBT Europe GmbH, Lünen 2008

E

For the execution of this automatic sequence, only a pressure sensor, in principle, needs to be installed for the tensioner cylinder pressure measurement. As a rule, however, an additional reed rod is also installed for the purpose of obtaining an overview of the control range of the tensioner cylinder. This measure can be used to determine whether or not the tensionable drive frame can still be moved. If the reed rod should signal that the tensioner cylinder is working mainly in the end areas, then one can move back to an optimal working area by shortening or lengthening the chain.

Orderly operation of the chain tensioning system can however only be guaranteed if it has been ensured that no external pressure whatsoever (e.g. through pile ups or digging into the mine footwall or bottom) is exerted on the tensionable drive frame. The tensionable drive frame should remain moveable throughout the entire length of the cylinder path.

The sequence of the automatic pressure maintenance system (1) The control system waits for the completion of the “Start delay” time parameter and then continues the cycle at (2).

(2) The control unit monitors on a continuous basis the pressure in the tensioner cylinders and performs the following comparisons: J If the pressure is less than the lower hysteresis range that is calculated with the “Nominal pressure - lower.hyster.” formula, then the tensioning time measurement is started and the cycle is resumed at (3).

J If the pressure is greater than the upper hysteresis range that is calculated with the “Nominal pressure - upper.hyster.” formula, then the relief time measurement is started and the cycle is resumed at (4).

If none of the above comparisons apply and the pressure, therefore, still lies within the defined hysteresis range, the controller remains in loop (2).

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5.25

Rinsing the tensionable drive frame (3) The cylinders are extended until: J The distance covered is greater than/equal to “Min.ext.path” Then the cycle is continued at (2) after a short period of retraction (self-contained) of the cylinders.

J The time parameter Tensioning time runs out. Then the cycle is continued at (2) after the time parameter for delay time runs out.

(4) The cylinders are retracted until: The time parameter Tensioning time runs out. Then the cycle is continued at (2) after the time parameter for delay time runs out.

If a conveyor signal error or pressure sensor error appears during the automatic sequence of operations, then a corresponding error message will be displayed and saved, the automatic sequence is shut down - insofar as it has been correspondingly parametered and the conveyor enabling signal is reset. If the cylinder limit stop is reached during the running time of the automatic sequence, then the setting procedure is deactivated and a corresponding warning signal is saved. Here, too, the possibility exists of switching off the system by means of parameterization. If no shutdown occurs, then the control system will then be inactive until an opposite cylinder pressure change arises.

Rinsing the tensionable drive frame The tensionable drive frame can be equipped with spray jets for flushing tasks in order to ensure its ease of movement during operation. The flushing is intended to free the frame of coal dust which could have an unfavorable effect on its mobility.

The individual spray jets are brought together into a single group, which are fed by a valve.

The flushing jets are switched via valve outlet 11 on the valve strip.

This valve can be used manually or automatically.

Manual rinsing The manual flushing of the tensionable drive frame at the tail-end drive is always possible outside of the automatic sequence. The signal “Conveyor runs” is not necessary for the rinsing operation.

To prevent an inadvertent opening of the flushing valves, the key combination of keys H or I + then key E has been made available for the triggering of the function. As a result of this, the additional menu fl. Valve1 ON appears. By using the keys L or M, you can navigate in the auxiliary functions. The P key triggers the actual function.

Automatic rinsing time (cyclic) The flushing of the tensionable drive frame is taken over autonomously in the automatic timing sequence. If cyclical flushing is enabled, then the flushing procedure will proceed as follows: A start-up timer is started when a start-up signal is received (duration 5 min.) and the flushing begins. If no run signal is present after the start-up timer has run its course, then the flushing will be switched off again and cannot be activated again until there is a new start-up. As a basic principle, flushing only takes place when the run signal of the conveyor is present.

5.26

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

If the conveyor is switched off and the signal “Conveyor is stopped” is received, then any setting procedures will be interrupted at once and the control unit waits for a new starting procedure.

E

Conveyer shutdown

Measurement values Measurement values Tab. 7: Measurement values English-language display

English-language meaning German-language display

German-language meaning

Pressure: 135 Bar

This line displays the current pressure in the tensioner cylinder.

Zyl.Druck 135 Bar

Diese Zeile zeigt den aktuellen Druck im Spannzylinder an.

Targ.press: ~~~

This line displays the calculated target pressure for the tensioner cylinder.

The pressure is directly dependent on the electrical current of the face conveyor.

It can in addition receive a further dependency, namely that of the location of the mining machine. The display does not show valid values until an automatic sequence is active.

Zieldruck: ~~~

Diese Zeile zeigt den errechneten Zieldruck für den Spannzylinder an. Der Druck hängt direkt vom Strom des Strebförderers ab. Er kann zusätzlich eine weitere Abhängigkeit, nämlich die vom Standort der Gewinnungsmaschine erhalten. Die Anzeige zeigt erst bei einer aktiven Automatik gültige Werte an.

Cyl.path: 315 mm

This line displays the current extension distance of the tensioner cylinder. If no sensor (reed rod) is connected, then the value ~~~ is displayed.

Zyl.Weg: 315 mm

Diese Zeile zeigt den aktuellen Ausfahrweg des Spannzylinders an. Wurde kein Sensor (Reedstab) angeschlossen zeigt sich der Wert ~~~.

Mot.current: ~~~

This line displays the transmitted motor current of the face conveyor, which is sent by the higher-level control system. The targets are only visible when the “serial link” parameter is set to 1 or 2 and the parameter comTYP is set to 1.

Motorstrom: ~~~

Diese Zeile zeigt den übertragenen Motorstrom des Strebförderers an, der von der übergeordneten Steuerung gesendet wird.

Die Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 1 oder 2 und der Parameter comTYP auf 1 gesetzt ist.

LWC SGNL:

This lines shows the current status of the conveyor as a series of numbers. The following texts are possible: open ok (off) prewarn is running short The line is only visible when the “serial link” parameter is set to 0 and the comTYP parameter is set to 1.

LWC SGNL:

Diese Zeile zeigt den aktuellen Status des Förderers als Zeichenkette an. Folgende Texte sind möglich: offen ok (aus) vorwarn läuft kurz Die Zeile ist nur sichtbar, wenn die Parameter “serial link” auf 0 und comTYP auf 1 stehen.

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5.27

Measurement values LWC value:

Shearer pos:

~~~

This line displays the current status of the conveyor (sensor value of Port B1) in mm.

The line is only visible when the “serial link” parameter is set to 0 and the comTYP parameter is set to 1.

LWC Wert:

Diese Zeile zeigt den aktuellen Status des Förderers (Sensorwert des Ports B1) in Millimeter an.

Die Zeile ist nur sichtbar, wenn die Parameter “serial link” auf 0 und comTYP auf 1 stehen.

This line displays the transmitted site of the mining machine in shields, which are sent from the last face shield. The line is only visible if the “serial link” parameter is positioned at 2, 3 or 4.

Walzenpos.:

~~~

Diese Zeile zeigt den übertragenen Standort der Gewinnungsmaschine in Schilden an, die vom letzten Strebschild gesendet werden. Die Zeile ist nur sichtbar, wenn der Parameter “serial link” auf 2,3 oder 4 steht.

English-language display

English-language meaning German-language display

German-language meaning

fl. in

This line displays the duration in minutes before the next flushing sequence is started. The line is only visible when the “Water flush” parameter is set to 1.

Diese Zeile zeigt die Dauer in Minuten an, bis der nächste Spülvorgang gestartet wird. Diese Zeile ist nur sichtbar, wenn der Parameter ”Water flush” auf 1 gesetzt wurde.

5.28

120 min

Spu. in

120 min

Chain tensioner PMC®-R

Automatic pressure system parameters Automatic pressure system parameters Tab. 8: Parameters of the automatic pressure system Part 1 English-language display

English-language meaning German-language display

German-language meaning

P_hold 0

This is the pressure [bar] that should be maintained by the automatic sequence in the tensioner cylinders, if either the motor current of the conveyor is smaller than the value defined by the parameters I_Switch0, or if one of the parameters I_Switch0 or I_Switch1 is set to 0, or if no motor current information is available. Minimum=5 bar, Maximum=350 bar.

Haltedr. 0

Dies ist der Druck[bar], der durch die Automatik in den Spannzylindern aufrechterhalten werden soll, wenn entweder der Motorstrom des Förderers kleiner ist als der durch den Parameter I_Umschalt0 definierte Wert oder wenn einer der Parameter I_Umschalt0 oder I_Umschalt1 auf den Wert 0 gesetzt wurde oder keine Motorstrominformation vorliegt.Minimum = 5bar, Maximum = 350bar.

* 75

* 75

P_hold 1

* 90

This is the upper pressure [bar], which describes the first curve, on the basis of which the program calculates the target pressure.

If the electrical power value applied lies between the values I_Switch0 and I_Switch1, the program calculates the target pressure that lies between Hold pressure 0 and Hold pressure 1.

Minimum=5 bar, Maximum=350 bar

Haltedr. 1

* 90

Dies ist der obere Druck [bar], der die erste Gerade beschreibt, anhand derer das Programm den Zieldruck berechnet. Liegt der übertragene Stromwert zwischen den Werten I_Umschalt0 und I_Umschalt1, berechnet das Programm den Zieldruck, der zwischen Haltedruck 0 und Haltedruck 1 liegt.

Minimum=5bar, Maximum=350bar

P_hold 2

* 105

This is the upper pressure [bar], which describes the second curve, on the basis of which the program calculates the target pressure.

If the electrical power value applied lies between the values I_Switch1 and I_Switch2, the program calculates the target pressure that lies between Hold pressure 1 and Hold pressure 2.

Minimum=5 bar, Maximum=350 bar

Haltedr. 2 * 105

Dies ist der obere Druck [bar], der die zweite Gerade beschreibt, anhand derer das Programm den Zieldruck berechnet. Liegt der übertragene Stromwert zwischen den Werten I_Umschalt1 und I_Umschalt2, berechnet das Programm den Zieldruck, der zwischen Haltedruck 1 und Haltedruck 2 liegt.

Minimum=5bar, Maximum=350bar

P_hold 3

* 120

This is the upper pressure [bar], which describes the third curve, on the basis of which the program calculates the target pressure.

If the electrical power value applied lies between the values I_Switch2 and I_Switch3, the program calculates the target pressure that lies between Hold pressure 2 and Hold pressure 3.

Minimum=5 bar, Maximum=350 bar

Haltedr. 3

Dies ist der obere Druck [bar], der die dritte Gerade beschreibt, anhand derer das Programm den Zieldruck berechnet. Liegt der übertragene Stromwert zwischen den Werten I_Umschalt2 und I_Umschalt3, berechnet das Programm den Zieldruck, der zwischen Haltedruck 2 und Haltedruck 3 liegt.

Minimum=5bar, Maximum=350bar

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* 120

5.29

Automatic pressure system parameters English-language display

English-language meaning German-language display

German-language meaning

I_Switch0

This parameter should be set to the minimum achievable motor current value (empty conveyor). It is used together with the Hold.press. 0 parameter to calculate the target pressure for the pressure controller. (see definition of Hold pressures) Minimum=0, Maximum=1000 [A or % ]

I_Umschalt0

Dieser Parameter soll auf den minimal erreichbaren Motorstromwert gestellt werden (leerer Förderer). Er wird zusammen mit dem Parameter Haltedr.0 benutzt, um den Zieldruck für die Druckregelung zu berechnen. (siehe Definition Haltedrücke) Minimum=0, Maximum=1000 [A oder % ]

Together with the parameter I_Switch0, this parameter describes the first curve used for target pressure calculation. (see definition of Hold pressures) Minimum=0, Maximum=1000 [A or % ]

I_Umschalt1

* 60

Dieser Parameter beschreibt zusammen mit dem Parameter I_Umschalt0 die erste Gerade zur Zieldruckberechnung. (siehe Definition Haltedrücke) Minimum=0, Maximum=1000 [A oder %]

* 40

I_Switch1* 60

* 40

I_Switch2

*80

Together with the parameter I_Switch0, this parameter describes the second curve used for target pressure calculation. (see definition of Hold pressures) Minimum=0, Maximum=1000 [A or % ]

I_Umschalt2

*80

Dieser Parameter beschreibt zusammen mit dem Parameter I_Umschalt0 die zweite Gerade zur Zieldruckberechnung. (siehe Definition Haltedrücke) Minimum=0, Maximum=1000 [A oder %]

I_Switch3

*100

Together with the parameter I_Switch2, this parameter describes the third curve used for target pressure calculation. The parameter should be set to the maximum reachable motor current value of the tail-end drive motor (conveyor with maximum load). It is used together with the Hold.press.3 parameter to calculate the target pressure for the pressure controller. (See definition of Hold pressure) If the I_Switch parameters are set to 0 or if the value for I_Switch(n) lies below the value for I_Switch(n+1) {0 ≤ n ≤ 2}, then the target pressure calculation will not be carried out. The parameter Hold.press.0 is then used as target pressure.

If the electrical power value applied lies above the value of the parameter, then the target pressure will be set to the value of Hold.press.3.

Minimum = 0, Maximum = 1000 [A or %]

I_Umschalt3

*100

Diesre Parameter beschreibt zusammen mit dem Parameetr I_Umschalt2 die dritte Gerade zur Zieldruckberechnung. Der Parameter soll auf den maximal erreichbaren Motorstromwert des Hilfsantriebmotors eingestellt werden (Förderer mit maximaler Belastung).

Er wird zusammen mit dem Parameter Haltedr.3 benutzt um den Zieldruck für die Drukregelung zu berechnen. (Siehe Definition Haltedruck) Sind die I_Umschalt - Parameter auf 0 gesetzt oder liegt der Wert für I_Umschalt(n) unterhalb des Wertes für I_Umschalt(n+1) {0 ≤ n ≤ 2} wird die Zieldruckberechnung nicht durchgeführt. Es wird dann der Parameter Haltedr.0 als Zieldruck verwendet. Liget der übertragene Stromwert über dm Wert des Parameters, wird der Ziledruck aif den Wert haltedr. 3 gesetzt.

Minimum = 0, Maximum = 1000 [A oder %]

5.30

Chain tensioner PMC®-R

Automatic pressure system parameters English-language display

English-language meaning German-language display

German-language meaning

shieldno w1

This parameter is a limit value that is used to regulate the target pressure,

* 75

Schildnr W1

* 75

Dieser Parameter ist ein Grenzwert um den Zieldruck in Abhängigkeit von der Position der Gewinnungsmaschine zu regeln. Hierfür wird der Streb in vier Bereiche aufgeteilt. Der Parameter setzt den Grenzwert W1. Er beschreibt den ersten Teilbereich (von 4 parametrierbaren Bereichen).Hier: von Schild 1 bis Schild 75. Ist die Position der Gewinnungsmaschine kleiner als die parametrierte Weggrenze, gilt für diesen Bereich ein Wichtungsfaktor von 100%. Das heißt, als Zieldruck wird der aus den Stromwerten berechnete Zieldruck benutzt.

Minimalwert=1, Maximalwert=350 Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

Schildnr W2

* 150

Dieser Parameter setzt den zweiten Grenzwert W2. Er markiert den zweiten Bereich (Hier: zwischen Schild 75 und Schild 150).

Ist die Position der Gewinnungsmaschine zwischen Schildnr W1 und Schildnr W2, dann ist der Wichtungsfaktor eine Rampe zwischen den Werten Wichtfakt 1 und Wichtfakt 2: Die Einheit des Wichtungsfaktors ist [%].

Minimalwert=1, Maximalwert=350 Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

depending on the position of the mining machine. The longwall is divided up into four sections for this purpose. The parameter sets the limit value W1. It describes the first partial range (of 4 parameterable ranges). Here: from shield 1 up to shield 75. If the position of the mining machine less than that of the parametered path limit, then a weigh factor applies for this range of 100%. This means that target pressure calculated from the electrical power values is used as the target pressure.

Minimum value=1, Maximum value=350 This line is only visible if the parameter “serial link” is set to 2, 3 or 4. shieldno w2

* 150

Doc. no.: 4007 178 070 BA 00

This parameter sets the second limit value W2.

It marks the second range (here: between shield 75 and shield 150). If the position of the mining machine is between shieldno w1 and shieldno w2, then the weigh factor is a slope between the values weigh fact 1 and weigh fact 2: the unit of the weigh factor is [%].

Minimum value=1 Maximum value=350 This line is only visible if the parameter “serial link” is set to 2, 3 or 4.

VLVT / 01

5.31

Automatic pressure system parameters shieldno w3

* 200

This parameter sets the second limit value W3.

It marks the second range (here: between shield 150 and shield 200). If the position of the mining machine is between shieldno W2 and shieldno W3, then the weigh factor is a slope between the values weigh fact 2 and weigh fact 3: the unit of the weigh factor is [%].

Minimum value=1 Maximum value=350 This line is only visible if the parameter “serial link” is set to 2, 3 or 4.

Schildnr W3

* 200

Dieser Parameter setzt den zweiten Grenzwert W3. Er markiert den zweiten Bereich (Hier: zwischen Schild 150 und Schild 200).

Ist die Position der Gewinnungsmaschine zwischen Schildnr W2 und Schildnr W3, dann ist der Wichtungsfaktor eine Rampe zwischen den Werten Wichtfakt 2 und Wichtfakt 3: Die Einheit des Wichtungsfaktors ist [%].

Minimalwert=1, Maximalwert=350 Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

English-language display

English-language meaning German-language display

German-language meaning

weigh fact1

* 100

This parameter describes the weigh factor for the first longwall range up to the path limit shieldno W2. The unit is to be specified in %.

Minimum value=100% Maximum value=900% This line is only visible if the parameter “serial link” is set to 2, 3 or 4.

Wichtfakt 1

* 100

Dieser Parameter beschreibt den Wichtungsfaktor für den ersten Strebbereich bis zur Weggrenze Schildnr W2.

Die Einheit ist in % anzugeben.

Minimalwert = 100% Maximalwert = 900% Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

weigh fact2

* 100

This parameter describes the weigh factor for the second longwall range up to the path limit shieldno W3.

The unit is to be specified in %.

Minimum value=100% Maximum value=900% This line is only visible if the parameter “serial link” is set to 2, 3 or 4.

Wichtfakt 2

* 100

Dieser Parameter beschreibt den Wichtungsfaktor für den zweiten Strebbereich bis zur Weggrenze Schildnr W3.

Die Einheit ist in % anzugeben.

Minimalwert = 100% Maximalwert = 900% Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

weigh fact3

* 100

This parameter describes the weigh factor up to the path limit shieldno W4. The units is to be specified in %.

Minimum value=100% Maximum value=900% This line is only visible if the parameter “serial link” is set to 2, 3 or 4.

Wichtfakt 3

* 100

Dieser Parameter beschreibt den Wichtungsfaktor bis zur Weggrenze Schildnr W4.

Die Einheit ist in % anzugeben.

Minimalwert = 100% Maximalwert = 900% Diese Zeile ist nur sichtbar, wenn der Parameter ”serial link” auf 2, 3 oder 4 gesetzt ist.

P_ hyster.

*9

This is the pressure in the tensioner cylinder [bar] by which the target pressure may be exceeded before the regulation responds.

Minimum value=5, Maximum value=50

Hyster.Druck

*9

Dies ist der Druck im Spannzylinder[bar], um den der Zieldruck überschritten werden darf, bevor die Regelung anspricht.

Minimalwert=5, Maximalwert=50

5.32

Chain tensioner PMC®-R

Automatic pressure system parameters P_lo_ hyster.

*9

This is the pressure in the tensioner cylinder [bar] by which the target pressure may fail to be met before the regulation responds.

Minimum value=5, Maximum value=50

Unte.Hyster.

*9

Dies ist der Druck im Spannzylinder [bar], um den der Zieldruck unterschritten werden darf, bevor die Regelung anspricht.

Minimalwert=5, Maximalwert=50

T_max.idle.

*0

If no great difference between the target pressure and the actual pressure is recognized for a prolonged period of time, an extension cycle will be nevertheless started no later than after this time, after which the pressure will be checked.

The cylinder will be driven back a bit afterwards as needed. If the parameter is at 0, this process will not be carried out in a time-controlled manner Minimum value=0, Maximum value=32000 time in 1/100 seconds

Max.Ruhez.

*0

Wird für längerer Zeit keine große Differenz zwischen dem Zieldruck und dem Istdruck erkannt, wird nach spätestens dieser Zeit trotzdem ein Ausfahrzyklus gestartet und danach der Druck überprüft.

Gegebenenfalls wird der Zylinder im Anschluss wieder ein Stück zurückgefahren. Steht der Parameter auf 0, wird dieser Vorgang nicht zeitgesteuert durchgeführt.

Minimalwert=0, Maximalwert=32000 Zeit in 1/100 Sekunde

Doc. no.: 4007 178 070 BA 00

VLVT / 01

5.33

Automatic pressure system parameters English-language display

English-language meaning German-language display

German-language meaning

No.tension.attempts* 10

If the path minimum Anz.Spannver (min.ext.str) is not reached (Extend timeout) when the cylinders are extended, a counter is raised by 1 each time. This counter is set to 0 again after every successful tensioning. If this counter now reaches a value that becomes greater than the parameter “No.tension.attempts”, the automatic sequence will abort with the error message “Ext.Count overfl”, if this function is registered.

The trailing error is stored in the column “HIST ERROR” and the enablement bit to the conveyor is reset. If this parameter is set to 0, the counter will not evaluate and the automatic sequence continues to attempt cyclic re-tensioning.

Minimum value=0, Maximum value=500

* 10

Wird beim Ausfahren der Zylinder das Wegminimum (Min.Ausf.Weg) nicht erreicht (Extend timeout), wird jedes Mal ein Zähler um 1 erhöht. Nach jedem erfolgreichen Spannen wird dieser Zähler wieder auf 0 gesetzt. Erreicht dieser Zähler nun einen Wert, der größer als der Parameter ”Anz.Spannver” wird, bricht die Automatik mit der Fehlermeldung ”Ext.Count overfl” ab, falls diese Funktion angemeldet ist.

Der Fehler Nachspannen wird in der Spalte ”HIST FEHLER” gespeichert und das Freigabebit zum Förderer wird rückgesetzt.

Ist dieser Parameter auf 0 gesetzt, erfolgt keine Zählerauswertung und die Automatik versucht weiterhin zyklisch nachzuspannen.

Minimalwert=0, Maximalwert=500

Min.ext.path* 20

An extension procedure starts every time the actual pressure is lower than the target pressure by more than the P_lo_hyster. The attempt is always made to cover the path defined by the Min.ext.str. before the actual pressure is checked once again. A further adjustment cycle is started if this path differential is not achieved.

Minimum value=0, Maximum value=100 [mm]

* 20

Jedes mal, wenn der Istdruck um mehr als P_lo_hyster. niedriger ist als der Zieldruck, wird ein Ausfahrvorgang begonnen.

Es wird immer versucht den durch den Min.ext.str. definierten Weg zurückzulegen, bevor der Istdruck erneut überprüft wird. Beim Nichterreichen dieser Wegdifferenz wird ein weiterer Stellzyklus begonnen.

Minimalwert=0, Maximalwert=100 [mm]

5.34

Min.Ausf.Weg

Chain tensioner PMC®-R

Automatic pressure system parameters Tensioning time * 200

If a tensioning procedure takes longer than the time determined here without the path determined by the min.ext.path being travelled over, the valve will be switched off and the controller will be restarted only after a delay time.

Minimum value=10, Maximum value=6000 [1/100s]

Spannzeit

* 200

Dauert ein Spannvorgang länger als die hier festgelegte Zeit ohne das der durch den Parameter Min.Ausf.Weg festgelegte Weg zurückgelegt ist, wird das Ventil abgeschaltet und die Regelung erst nach einer Wartezeit wieder fortgesetzt.

Minimalwert=10, Maximalwert=6000 [1/100s]

Rel.time * 200

If a relief procedure takes longer than the time determined here without the target pressure being reached, then the valve is switched off and the control is not resumed until after a delay time.

Minimum value=10, Maximum value=5000 [1/100s]

Entsp.zeit

* 200

Dauert ein Entspannvorgang länger als die hier festgelegte Zeit ohne das der Zieldruck erreicht wird, wird das Ventil abgeschaltet und die Regelung erst nach einer Wartezeit (T_Wait) wieder fortgesetzt.

Minimalwert=10, Maximalwert=5000 [1/100s]

English-language display

English-language meaning German-language display

German-language meaning

T_PostRet

* 0

After every tensioning procedure, the tensioner cylinder is automatically retracted (bled) again for the time determined here. If the parameter value is greater than 0, then this post-setting procedure is a permanent part of the tensioning procedure. After that, the control procedure (next measuring cycle) is continued after completion of a delay time. Minimum value=0, Maximum value=150 [1/100s]

* 0

Nach jedem Spannvorgang wird der Spannzylinder automatisch wieder für die hier festgelegte Zeit eingefahren(entlüftet). Ist der Parameterwert größer 0, ist dieser Nachstellvorgang fester Bestandteil des Spannvorgangs. Danach wird die Regelung (nächster Messzyklus) erst nach Ablauf einer Wartezeit fortgesetzt. Minimalwert=0, Maximalwert=150 [1/100s]

T_Wait

* 200

After completion of the Wartezeit tensioning or relief time, the setting procedure is interrupted for the time defined here. After that, the controller checks again whether the chain-condition triggering the setting procedure is still present and starts if this is the case, and the maximum tensioning or release number is not yet exceeded, a new setting attempt.

Minimum value=50, Maximum value=3000 [1/100s]

* 200

Nach Ablauf der Spannoder Entspannzeit wird der Stellvorgang für die hier festgelegte Zeit unterbrochen. Anschließend überprüft die Regelung erneut ob der den Stellvorgang auslösende Kettenzustand noch vorliegt und startet, falls dies so ist und die maximale Spannoder Entspannanzahl noch nicht überschritten ist, einen erneuten Stellversuch.

Minimalwert=50, Maximalwert=3000 [1/100s]

Doc. no.: 4007 178 070 BA 00

VLVT / 01

Nachst.zeit

5.35

Automatic pressure system parameters Fig. 8: S1

Sketch of the longwall ranges and the switchover parameters

1

*3

* 2 *W1

*W2

*4

LS

*W3

S1 = First Face Shield LS = Last Face Shield 1 = First longwall range with fixed weigh factor 100% 2 = Second longwall range with weigh factor “Weigh fact 1” 3 = Third longwall range with weigh factor “Weigh fact 2” 4 = Fourth longwall range with weigh factor “Weigh fact 3” W1= Limit value W1 defined by the parameter “shieldno w1” W2= Limit value W2 defined by the parameter “shieldno w2” W3= Limit value W3 defined by the parameter “shieldno w3” * = modifiable parameter

5.36

Chain tensioner PMC®-R

Automatic pressure system parameters Tab. 9: Automatic pressure system parameters Part 2 Display 0

x 0

d

0

Doc. no.: 4007 178 070 BA 00

English-language meaning

German-language meaning

This line shows the data of a structure that can be used for testing the automatic sequence. The first value represents the sequential number of the variables in the structure, the second value the content of these variables in hexadecimal representation, the third value the content of the variables in decimal form. The keys “N” and “P” are used for navigation in the structure. The meaning of the parameters is as follows: 0 Extension counter 1 Automatic sequence mode 0 = M_IDLE 1 = M_TIGHT 2 = M_SLACK 3 = M_EXTDIFF 4 = M_RETDIFF 5 = M_TENSION 6 = M_AUTO 2 internal condition of the conveyor 0 = conveyor at rest 1 = conveyor is running 3 Marker for calculation of the path differential 4 Position of the mining machine 5 Current value range for calculation of the target pressure 0 = less than I_SWITCH0 1 = between I_SWITCH0 and I_SWITCH1 2 = invalid range 3 = invalid range 4 = greater than I_SWITCH1 5 = invalid range 6 Differential between the weigh factors of the range 7 Differential of the path between start of the range and the end of the range 8 Differential between the position of the mining machine and the start of the range.

9 Target pressure because of the conveyor current 10 Scaling of the shield range of the position of the mining machine 1 = less than shieldno w1 2 = between shieldno w1 and shieldno w2 3 = between shieldno w2 and shieldno w3 4 = greater than shieldno w3 11 calculated weigh factor in % 12 target pressure on the basis of the weigh factor (position of the mining machine) 13 quantity of structure data

Diese Zeile zeigt die Daten einer Struktur, die zum Testen der Automatik benutzt werden kann. Der erste Wert stellt die laufende Nummer der Variablen in der Struktur dar. Der zweite Wert den Inhalt dieser Variablen in hexadezimaler Darstellung. Der dritte Wert den Inhalt der Variablen in dezimaler Form. Zur Navigation in der Struktur werden die Taste ”N” und ”P” benutzt. Die Bedeutung der Parameter ist folgende: 0 Ausfahrzähler 1 Mode der Automatik 0 = M_IDLE 1 = M_TIGHT 2 = M_SLACK 3 = M_EXTDIFF 4 = M_RETDIFF 5 = M_TENSION 6 = M_AUTO 2 interner Zustand des Förderers 0 = Förderer steht 1 = Förder läuft 3 Merker zur Berechnung der Wegdifferenz 4 Position der Gewinnungs maschine 5 Bereich des Stromwertes zur Berechnung des Zieldruck 0 = kleiner I_SWITCH0 1 = zwischen I_SWITCH0 und I_SWITCH1 2 = ungültiger Bereich 3 = ungültiger Bereich 4 = größer I_SWITCH1 5 = ungültiger Bereich 6 Differenz zwischen den Wichtungsfaktoren des Bereichs 7 Differenz des Weges zwischen Bereichsanfang und Bereichsende 8 Differenz zwischen der Position der Gewinnungsmaschine und dem Bereichsanfang.

9 Zieldruck aufgrund des Fördererstroms 10 Skalierung des Schildbereiches der Position der Gewinnungsmaschine 1 = kleiner shieldno w1 2 = zwischen shieldno w1 and shieldno w2 3 = zwischen shieldno w2 and shieldno w3 4 = grösser shieldno w3 11 berechneter Wichtungsfaktor in % 12 Zieldruck aufgrund der Wichtungsfaktoren (Position der Gewinnungsmaschine) 13 Anzahl der Strukturdaten

VLVT / 01

5.37

SYSTEM PARAMETERS SYSTEM PARAMETERS Tab. 10: System parameters English-language display

English-language meaning German-language display

German-language meaning

P_pretension * 120 mm

Defines the cylinder Vorsp.druck * 120mm pressure that must be reached after receiving the prewarning signal during the pretensioning procedure before starting up the conveyor.

After this, the control system gives the release for conveyor start-up.

Minimum value=5 Maximum value=250 [bar]

Definiert den Zylinderdruck, der nach Empfang des Vorwarnsignals beim Vorspannvorgang vor Anlaufen des Förderers erreicht werden muss.

Danach gibt die Steuerung die Freigabe zum Fördereranlauf.

Minimalwert=5 Maximalwert=250 [bar]

S_pre-extend

* 30 mm

For every pretensioning procedure, the tensioning procedure additionally continues by the path defined here after the pretensioning pressure is reached (or up to completion of the setting time), before the actual automatic tensioning operation is activated.

Minimum value=0, Maximum value=250 [mm]

Vorspannweg

Bei jedem Vorspannvorgang wird nach Erreichen des Vorspanndruckes zusätzlich um den hier definierten Weg weitergespannt (oder bis Ablauf der “Stellzeit”), bevor die eigentliche Spannautomatik aktiviert wird.

Minimalwert=0 Maximalwert=250 [mm]

Startingtime *

2000

If this time is exceeded after the pretensioning procedure (reaching the pretensioning pressure path), without the arrival of the “Conveyor is running” signal, then the automatic sequence is suspended up to the next conveyor signal change, and a corresponding error status is set.

Minimum value=500 Maximum value=6000 [1/100s]

Signalzeit * 2000

5.38

* 30mm

Wird diese Zeit nach dem Vorspannvorgang (Erreichen des Vorspanndrucks/-wegs) ohne Eintreffen des ”Förderer läuft” - Signals überschritten, wird die Automatik bis zum nächsten Förderersignalwechsel suspendiert und ein entsprechender Fehlerzustand gesetzt.

Minimalwert=500 Minimalwert=6000 [1/100s]

Chain tensioner PMC®-R

SYSTEM PARAMETERS Valvetime

* 1000

If this time is exceeded during the pretensioning procedure without reaching the pretensioning pressure, then the automatic sequence is suspended up to the next conveyor signal change, and a corresponding error status is set and displayed. If this time is exceeded without reaching the pretensioning path, but whilst reaching the pretensioning pressure, then the automatic sequence will, nevertheless, be activated.

Minimum value=200 Maximum value=6000 [1/100s]

Stellzeit

Delaytime

* 10

After this time has elapsed, following the arrival of the “Conveyor is running” signal and the reaching the pretensioning path, the actual automatic sequence is started.

Minimum value=10 Maximum value=3000 [1/100s]

Startverz.

Doc. no.: 4007 178 070 BA 00

VLVT / 01

* 1000

* 10

Wird diese Zeit während des Vorspannvorgangs ohne Erreichen des Vorspanndrucks überschritten, wird die Automatik bis zum nächsten Förderersignalwechsel suspendiert und ein entsprechender Fehlerzustand gesetzt und angezeigt. Wird diese Zeit ohne Erreichen des Vorspannweges aber unter Erreichen des Vorspanndruckes überschritten, wird trotzdem die Automatik aktiviert.

Minimalwert=200 Maximalwert=6000 [1/100s] Nach Ablauf dieser Zeit, nach dem Eintreffen des ”Förderer läuft” - Signals und Erreichen des Vorspannweges, wird die eigentliche Automatik gestartet.

Minimalwert=10 Maximalwert=3000 [1/100s]

5.39

SYSTEM PARAMETERS English-language display

English-language meaning German-language display

German-language meaning

Serial link

*1

Depending on this Anl. per Z-Bus parameter, the system is informed of the serial interfaces with which it functions and of the external systems from which the respective control signals are coming.

0 No serial coupling (stand alone) 1 serial coupling at Port-A2 (DUST) to the PMC-D 2 serial coupling at Port-A2 (DUST) to the PMC-D and serial coupling at Port-C2 (ACD) to the face end shield with status telegram 3 serial coupling at Port-C2 (ACD) to the face end shield with status telegram 4 serial coupling at Port-C2 (ACD) to the face end shield without status telegram.

Code plug =2: Minimum value=0 Maximum value=4 Code plug=3 Minimum value=0 Maximum value=1

*1

In Abhängigkeit dieses Parameters wird dem System mitgeteilt, mit welchen seriellen Schnittstellen es arbeitet und von welchen externen Sytemen die entsprechenden Steuersignale kommen.

0 Keine serielle Kopplung (stand alone) 1 serielle Kopplung an Port-A2 (DUST) zur PMC-D 2 serielle Kopplung an Port-A2 (DUST) zur PMC-D und serielle Kopplung an Port-C2 (ACD) zum Streb-endschild mit Statustelegramm 3 serielle Kopplung an Port-C2 (ACD) zum Strebendschild mit Statustelegramm 4 seriell Kopplung an Port-C2 (ACD) zum Strebendschild ohne Statustelegramm.

Codeplug =2: Minimalwert=0 Maximalwert=4 Codeplug=3 Minimalwert=0 Maximalwert=1

comTYP

*11

This parameter is an auxiliary parameter for unambiguous description of communications. It needs to be considered in connection with the parameter “Serial link” (Anlauf per Z-Bus).

The following possibilities are provided for: Serial link=0 and comTYP=0: no communication (stand alone) Serial link=0 and comTYP=1: communication via B1 (conveyor) Serial link=1 and comTYP=1: communication to A2 DUST Serial link= 2 and comTYP=1: communication to A2 DUST and ACD Protocol Other combinations are not relevant.

Parameter comTYP: Minimum value=0 Maximum value=1

*1

Diesre Parameter ist ein Hilfsparameter zur eindeutigen Beschreibung der Kommunikation. Er muss immer im Zusammenhang mit dem Parameter “Anlauf per Z-Bus” (Serial link) betrachtet werden.

Folgende Möglichkeiten sind vorgesehen: Serial link=0 und comTYP=0: keine Kommunikation (stand alone) Serial link=0 und comTYP=1: Kommunikation über B1 (Förderer) Serial link=1 und comTYP=1: Kommunikation an A2 DUST Serial link= 2 und comTYP=1: Kommunikation an A2 DUST und ACD-Protokoll Andere Kombinationen sind nicht relevant.

Parameter comTYP: Minimalwert=0 Maximalwert=1

5.40

Komm. TYP:

Chain tensioner PMC®-R

SYSTEM PARAMETERS English-language display

English-language meaning German-language display

German-language meaning

DUST BAUD

Parameter for adjustment of the data transmission rate of the DUST protocol.

0 = 9600 [baud] 1 = 19200 [baud] Minimum value=0 Maximum value= 1 This line is only visible if the parameter “Serial link”(Anl per Z-Bus) is set to 1 or 2.

DUST BAUD

Parameter zur Einstellung der Datenübertragungsrate des DUST-Protokolls.

0 = 9600 [baud] 1 = 19200 [baud] Minimalwert=0 Maximalwert= 1 Diese Zeile ist nur sichtbar, wenn ”serial link”(Anl per Z-Bus) auf 1 oder 2 steht.

DUST BCC consider * 1

Parameter for adjustment of the processing of the DUST protocol.

0 = without BCC (block check) 1 = with BCC Minimum value=0.

Maximum value=1 This line is only visible if the parameter “Serial link” is set to 1 or 3.

DUST BCC berücks. * 1

Parameter zur Einstellung der Verarbeitung des DUST-Protokolls.

0 = ohne BCC (blockcheck) 1 = mit BCC Minimalwert=0, Maximalwert=1 Diese Zeile ist nur sichtbar, wenn ” serial link ” auf 1 oder 3 steht.

DUST priority

*0

Parameter for adjustment of the priority of the DUST protocol.

0 = Priority low 1 = Priority high This line is only visible if the parameter “Serial link” (Anl per Z-Bus) is set to 1 or 2.

DUST Priorität

*0

Parameter zur Einstellung der Priorität des DUST-Protokolls.

0 = Priorität niedrig 1 = Priorität hoch Diese Zeile ist nur sichtbar, wenn ”serial link”(Anl per Z-Bus) auf 1 oder 2 steht.

ACD BAUD

*0

Parameter for adjustment of ACD BAUD the data transmission rate of the ACD protocol.

0 = 9600 [baud] 1 = 19200 [baud] Minimum value=0 Maximum value= 1 This line is only visible if the parameter “Serial link” (Anl per Z-Bus) is set to 2, 3 or 4.

*0

Parameter zur Einstellung der Datenübertragungsrate des ACD-Protokolls.

0 = 9600 [baud] 1 = 19200 [baud] Minimalwert=0, Maximalwert=1 Diese Zeile ist nur sichtbar, wenn ”serial link”(Anl per Z-Bus) auf 2, 3 oder 4 steht.

ACD priority

*0

Parameter for adjustment of the priority of the ACD protocol.

0 = Priority low 1 = Priority high This line is only visible if the parameter “Serial link” is set to 2, 3 or 4.

ACD Priorität

*0

Parameter zur Einstellung der Priorität des ACD-Protokolls.

0 = Priorität niedrig 1 = Priorität hoch Diese Zeile ist nur sichtbar, wenn ” serial link ” auf 2, 3 oder 4 steht.

Prevents conveyor shutdown via the chain tensioning system. The system always simulates a perfect condition.

CAUTION: Only for set-up and test purposes so that the mining operation is not disturbed!

0=normal operation, i.e. shutdown is executed; 1=shutdown is blocked.

Minimum value=0; Maximum value=1;

Kein Abschalt.

*0

Verhindert eine Abschaltung des Förderers über das Kettenspannsystem. Es wird immer ein einwandfreier Systemzustand vorgespiegelt.

Achtung: Nur für Einrichtund Testzwecke, um den Abbaubetrieb nicht zu stören!

0=Normalbetrieb, d.h.

Abschaltung wird durchgeführt; 1=Abschaltung gesperrt.

Minimalwert=0; Maximalwert=1;

*0

No switch-off *0

Doc. no.: 4007 178 070 BA 00

VLVT / 01

*0

5.41

SYSTEM PARAMETERS English-language display

English-language meaning German-language display

German-language meaning

Min. stroke * 10 mm

Specifies the path measurement value for the totally retracted tensioner cylinder.

Minimum value=10, Maximum value=800 [mm]

Wegminimum * 10mm

Gibt den Wegmesswert für den ganz eingefahrenen Spannzylinder an.

Minimalwert=10, Maximalwert=800 [mm]

Max. stroke * 490 mm

Specifies the path measurement value for the totally extended tensioner cylinder. Minimum value=100, Maximum value=999 [mm]

Wegmaximum * 490mm

Gibt den Wegmesswert für den ganz ausgefahrenen Spannzylinder an.

Minimalwert=100, Maximalwert=999 [mm]

Reed rod typ

Indicates the type of reed rod used.

0 500 mm 1 1000 mm

Reedstabtyp

*0

Gibt den verwendeten Reedstabtyp an.

0 500mm 1 1000mm

* 485 mm

Specifies the path measurement value at which a warning message is issued when exceeded.

Minimum value=20, Maximum value=999 [mm]

Max.Warnung.

* 485mm

Gibt den Wegmesswert an, bei dessen Überschreiten eine Warnmeldung abgesetzt wird.

Minimalwert=20, Maximalwert=999 [mm]

Min. warning. * 25 mm

Specifies the path measurement value at which a warning message is issued when it is not achieved.

Minimum value=0, Maximum value=980 [mm]

Min.Warnung * 25mm

Gibt den Wegmesswert an, bei dessen Unterschreiten eine Warnmeldung abgesetzt wird.

Minimalwert=0, Maximalwert=980 [mm]

Autom. restart

Specifies whether the automatic system should be automatically restarted for an active “Conveyor is running” signal and switched-off automatic sequence.

0 no automatic restart.

1 automatic restart permitted.

Minimum value=0, Maximum value=1

Autom.Neustart

Gibt an ob bei anstehendem ’Förderer läuft’ - Signal und abgeschalteter Automatik diese automatisch reaktiviert werden soll.

0 kein automatischer Neustart.

1 Automatischer Neustart erlaubt.

Minimalwert=0, Maximalwert=1

Max. warn.

*0

*0

*0

Mastertime

* 600

Specifies the period of time [ms] after which the display will return to the default menu display (DEFAULT DISPLAY) when the keyboard is not actuated.

Minimum value=300, Maximum value=2000 [1/100s]

Masterzeit

T_Wflush

*20

Duration of the flushing procedure in seconds Minimum value: 60 Maximum value: 100 [1/100s]

T_Spuelen

*20

Dauer des Spülvorgangs in Sekunden Minimalwert: 60 Maximalwert: 100 [1/100s]

T_Wdelay

*120

Delay time between two flushing procedures in seconds Minimum value: 60 Maximum value: 9999 [1/100s]

T_Spwart

*120

Wartezeit zwischen zwei Spülvorgängen in Sekunden Minimalwert: 60 Maximalwert: 9999 [1/100s]

5.42

* 600

Gibt die Zeitspanne an, nach der bei Nichtbetätigung der Tastatur die Anzeige in die Standardmenüanzeige (DEFAULT DISPLAY) zurückfällt.

Minimalwert=300, Maximalwert=2000 [1/100s]

Chain tensioner PMC®-R

Hist. Error Hist. Error Tab. 11: Hist. Error English-language display

English-language meaning German-language display

German-language meaning

0

This line shows the last 20 errors that led to a shutdown of the system.

One can navigate through the list using the keys “N” and “P”. If the list is still empty, then the text “no error” is displayed in all list elements.

Diese Zeile zeigt die letz-ten 20 Fehler an, die zu einer Abschaltung (shut-down) des Systems geführt haben. Über die Tasten ”N” und ”P” kann man durch die Liste navigieren. Ist die Liste noch leer, steht der Text no error in allen Listenelementen.

system press

0

system press

ERROR MESSAGES Tab. 12: ERROR MESSAGES English-language display

English-language meaning German-language display

German-language meaning

no errors

Error display. If an error is not saved, then the above message is displayed. If more than one error status is saved, the error list can be rolled by means of the L and M menu keys.

If an error message (after failure corrective action) is to be deleted, the appropriate error text must brought for the display and, subsequently, the T [ENTER] key pressed. The error message is then deleted. A detailed error list can be found in appendix 1.

Fehleranzeige. Ist kein Fehler gespeichert, so wird die obige Meldung angezeigt. Ist mehr als ein Fehlerzustand gespeichert, kann die Fehlerliste mittels der Menütasten L und M durch die Anzeige gerollt werden.

Soll eine Fehlermeldung (nach der Fehlerbehebung) gelöscht werden, muss der entsprechende Fehlertext zur Anzeige gebracht und anschließend die Taste T [ENTER] gedrückt werden.

Die Fehlermeldung ist dann gelöscht. Eine detaillierte Fehlerliste ist im Anhang 1 zu finden.

Doc. no.: 4007 178 070 BA 00

VLVT / 01

no errors

5.43

Service Service Tab. 13: service English-language display

English-language meaning German-language display

German-language meaning

boot to

In this menu line, by pressing the N and P special keys, the deep loading of the program located in the operated device can be initiated via the right or left neighbouring interface.

Actuation of the keys must be confirmed (repeated) after the password entry.

Prg. nach

<<

In dieser Menüzeile kann durch Betätigung der Sondertasten N und P das Tiefladen des im bedienten Gerät befindlichen Programms über die rechte bzw. linke Nachbarschnittstelle eingeleitet werden. Die Tastenbetätigung muss nach der Passworteingabe bestätigt (wiederholt) werden.

Prg. booten

(P)

<<

>>

>>

boot facewide

(P)

In this menu line, by pressing the special key P, a so-called BOOT procedure (restart) of the neighbouring control system can be called up. All neighbouring control systems lose their program and reload it from the triggering control system.

Pmc reset

(P)

In this menu line, by PMC reset pressing the special key P, a so-called RESET (restart) of the control system can be called up. After pressing this function, the hardware and software for the computer is reset and the system cannot run for the duration of the run-up phase (approx.

30 seconds).

(P)

In dieser Menüzeile kann durch Betätigung der Sondertaste P ein so genannter RESET (Neuanlauf) der Steuerung hervorgerufen werden.

Nach Betätigung dieser Funktion wird die Hardware und Software des Rechners zurückgesetzt und die Anlage ist für die Dauer der Hochlaufphase (ca. 30 Sekunden) nicht lauffähig.

destroy prog.

(P)

In this menu line, by pressing the special key P, the destruction of a control system program can be called up. The program is loaded from the neighbouring control system after this function has been actuated.

The program remains destroyed with single systems.

Prg. loeschen

(P)

In dieser Menüzeile kann durch Betätigung der Sondertaste P ein Zerstören des eigenen Programms der Steuerung hervorgerufen werden.

Nach Betätigung dieser Funktion wird das Programm aus der Nachbarsteuerung geladen.

Bei Einzelsystemen bleibt das Programm zerstört!

Name of the loaded application

CTS China 01_01_00

CTS China 01_01_00

5.44

In dieser Menüzeile kann durch Betätigung der Sondertaste P ein so genannter BOOT-Vorgang (Neuanlauf) der Nachbarsteuerung hervorgerufen werden. Alle Nachbarsteuerungen verlieren ihr Programm und laden es sich aus der auslösenden Steuerung nach.

Name der geladenen Applikation

Chain tensioner PMC®-R

Service code Nummer

This line shows the number Code Nummer of the plugged-in Code plug.

Permitted plugs are 2 = face conveyor-PMC®-R 3 = beam stage loader-PMC®-R

Diese Zeile zeigt die Nummer des gesteckten Codeplugs an.

Erlaubte Stecker sind 2 = Strebförderer-PMC®-R 3= Streckenförderer-PMC®-R

LTime

This line shows the time required for a program run (loop time).

Diese Zeile zeigt die Zeit, die für einen Programmdurchlauf benötigt wird (Loopzeit).

English-language display

English-language meaning German-language display

German-language meaning

Lmi 10 Lma 32

This line shows the minimum and maximum loop times that have occurred since the last reset. You can reset the times by using the P key.

Lmi 10 Lma 32

Diese Zeile zeigt die minimale und die maximale Loopzeit an, die seit dem letzen Rücksetzen aufgetreten sind. Sie können durch die Taste P die Zeiten rücksetzen.

This line permits calibration of the horn.

Cal. Beeper

Cal. Beeper

(P)

Doc. no.: 4007 178 070 BA 00

VLVT / 01

LZeit

(P)

Diese Zeile erlaubt das Kalibrieren der Hupe.

5.45

Diagnostics Diagnostics Tab. 14: Diagnostics English-language display

English-language meaning German-language display

German-language meaning

SD status:

Status of the valve strip

Status der Ventilleiste

0000

V:12 4 00000000

SD status:

0000

V:12 4 00000000

Curr B+C:

9

I B+C:

9

Curr Scu:

123

I Scu:

123

Curr Out:

1

I Nam:

1

Volt.Scu:

12029

V Scu:

12029

Volt.Out:

12054

V Out:

12054

PS9

0

0

0

This column displays the status of the serial communication at Port A2 (DUST). The first value displays the status of the connection.

0 everything OK 9 coupling not yet installed #0 and #9 fault during the initialization The second value is a transmission counter.

The third value is a reception counter.

The fourth value is an error counter.

PS9

PI-ID-No.

PI-ID-No.

*18

A telegram ID number can be entered in this line in order to be able to read the contents of the telegram in the next line.

Minimum value=0 Maximum value=255

PI 18

0

This line shows the PI 18 telegram contents of the selected reception telegram.

The first value displays the telegram ID that has been set.

The second value is the telegram reception counter.

The third value is adjustment parameter within the telegram structure.

The fourth values shows the telegram contents at the position of value 3.

The adjustment parameter can be incremented or de-incremented via the keys N and P. The display puffer consists of 20 words. The telegram contents and the telegram counter are displayed in hexadecimals.

5.46

0

0

0

0

0

0

Diese Spalte zeigt den Status der seriellen Kommunikation an Port A2 (DUST). Der erste Wert zeigt den Status der Verbindung.

0 alles in Ordnung 9 Kopplung noch nicht initialisiert #0 und #9 Fehler bei der Initialisierung Der zweite Wert ist ein Sendezähler.

Der dritte Wert ist ein Empfangszähler.

Der vierte Wert ist ein Fehlerzähler.

*18

In dieser Zeile kann ein eine Telegramm ID-Nummer eingetragen werden, um in der nächsten Zeile den Telegramminhalt lesen zu können.

Minimalwert=0 Maximalwert=255

0

Diese Zeile zeigt den Telegramminhalt des selektierten Empfang-Telegramms an.

Der erste Wert stellt die eingestellte Telegramm-ID dar.

Der zweite Wert ist der Telegrammempfangszähler.

Der dritte Wert ist Stellungsparameter innerhalb der Telegrammstruktur.

Der vierte Wert zeigt den Telegramminhalt an der Stelle von Wert 3.

Der Stellungsparameter kann über die Tasten N und P inkrementiert bzw. dekrementiert werden.

Der Darstellungspuffer umfasst 20 Worte. Der Telegramminhalt und der Telegrammzähler werden hexadezimal dargestellt.

0

Chain tensioner PMC®-R

Diagnostics PI-T 0

0

0

0

This line displays the current reception buffer. The description of the individual values corresponds to the previous line. The complete telegram can however be viewed here, even if it consists of more than 20 words. One can also modify the adjustment parameter with the keys N and P.

PI-T 0

0

0

0

Diese Zeile zeigt den aktuellen Empfangspuffer.

Die Beschreibung der einzelnen Werte entspricht der vorherigen Zeile. Hier kann jedoch das komplette Telgramm angeschaut werden, auch wenn es aus mehr als 20 Worten besteht.

Die Stellungsparameter kann man ebenfalls über die Tasten N und P verändern.

PO-T 0

0

0

0

This line displays the current transmission buffer.

The description of the individual values corresponds to the previous line. One can also modify the adjustment parameter with the keys N and P.

PO-T 0

0

0

0

Diese Zeile zeigt den aktuellen Sendepuffer. Die Beschreibung der einzelnen Werte entspricht der vorherigen Zeile. Die Stellungsparameter kann man ebenfalls über die Tasten N und P verändern.

0

This column displays the status of the serial communication at Port C2 (ACD). The significance of the individual values corresponds to that in the DUST description

AS9

0

Diese Spalte zeigt den Status der seriellen Kommunikation an Port C2 (ACD). Die Bedeutung der einzelnen Werte entspricht der in der DUST-Beschreibung

*20

See DUST description

AI-ID-No.

*20

Siehe DUST-Beschreibung

AS9

0

0

AI-ID-No.

0

0

AI-T 0

0

0

0

See DUST description

AI-T 0

0

0

0

Siehe DUST-Beschreibung

AO-T 0

0

0

0

See DUST description

AO-T 0

0

0

0

Siehe DUST-Beschreibung

TA1 R:

0T:

6

TA1 R:

0T:

6

TF1 R:

0T:

6

TF1 R:

0T:

6

A1 0

0

0

A1 0

0

0

F1 0

0

0

F1 0

0

0

R_INT

0

0

R_INT

0

0

E_A1F1 0

0

E_A1F1 0

0

E_RDX_INT

0

E_RDX_INT

0

E_HIL

0

0

E_HIL

0

0

E_HIR

0

0

E_HIR

0

0

Cl.hdlc

(N)

Cl.hdlc

(N)

Cl.hdlc_all

(N)

Cl.hdlc_all

(N)

Copy.HDLCINF (N)

Copy.HDLCINF (N)

A1S

0

0 0

A1S

0

0 0

F1S

0

0

F1S

0

0

0

0

1<F 2 A> 0EQ:2 NEQ: 0

1<F 2 A> 0EQ:2 NEQ: 0

\FlashBooter-R_00_05_03.d btpmc

\FlashBooter-R_00_05_03.d btpmc

20/04/05 17:07 BOOTERCRC: e963

20/04/05 17:07 BOOTERCRC: e963

\universell_01_01_00.dbtpm c

\TwentyMile_01_01_02.dbtp mc

15/12/05 11:20 APPL.CRC:d15a

15/12/05 11:20 APPL.CRC:d15a

Date: 15/12/2002 Time: 12:15:30

Date: 15/12/2002 Time: 12:15:30

Doc. no.: 4007 178 070 BA 00

VLVT / 01

5.47

Diagnostics DISP br. – + code value

2

DISP br. -

+

code value

2

Ver.Flashloader 0M 0S 0R

Ver.Flashloader 0M 0S 0R

Ver.Booter 0M 0S 0R

Ver.Booter 0M 0S 0R

Ver.ApiLib

Ver.ApiLib

0M 16S 5R

0M 16S 5R

Ver.BaseLib 0M 16S 5R

Ver.BaseLib 0M 16S 5R

Ver. FPGA1 2M 1S 0R

Ver. FPGA1 2M 1S 0R

Ver. FPGA2 2M 1S 0R

Ver. FPGA2 2M 1S 0R

Ver.CalibData 5M 0S 0R

Ver.CalibData 5M 0S 0R

Ver.DispBooter 0M 0S 2R

Ver.DispBooter 0M 0S 2R

Ver.DispAppl

Ver.DispAppl

4M 0S 8R

4M 0S 8R

Ver.VentBooter 0M 0S 0R

Ver.VentBooter 0M 0S 0R

Ver.VentAppl 2M 0S 4R

Ver.VentAppl 2M 0S 4R

IO S:

IO S:

5.48

0 R:

0

0 R:

0

Chain tensioner PMC®-R

BLOCKING FUNCTIONS BLOCKING FUNCTIONS Tab. 15: BLOCKING FUNCTIONS English-language display

English-language meaning German-language display

German-language meaning

reed rod

ON

Defines whether or not a reed rod has been connected to the system.

OFF no reed rod connected ON reed rod connected

Wegsensor

AN

Legt fest, ob ein Reedstab an das System angeschlossen wurde.

OFF kein Reedstab angeschlossen ON Reedstab angeschlossen

count shtdn

ON

Defines whether or not a shutdown is to be triggered when the extension counter has been exceeded.

OFF without shutdown ON with shutdown

Ausfahrz.

AN

Legt fest, ob bei Überschreitung des Ausfahrzählers eine Abschaltung ausgelöst werden soll.

AUS ohne Abschaltung AN mit Abschaltung

comm. shtdn

ON

Defines whether or not a shutdown is to be carried out when a communication has been disrupted.

OFF without shutdown ON with shutdown

Komm. Absch.

AN

Legt fest, ob bei einer gestörten Kommunikation eine Abschaltung durchgeführt werden soll.

AUS ohne Abschaltung AN mit Abschaltung

stroke shtdn

ON

Defines whether or not a shutdown is to be carried out when the maximum reed rod lengths (min/max stroke) have been reached.

OFF without shutdown ON with shutdown

Zylweg Absch.

AN

Legt fest, ob beim Erreichen der maximalen Reedstablängen (min/max stroke) eine Abschaltung durchgeführt werden soll.

AUS ohne Abschaltung AN mit Abschaltung

weigh fact

OFF

Defines whether or not the Wicht.fakt. weigh factor is to be taken into account for calculation of the target pressure.

OFF do not take into account ON take into account This line is only visible when the serial link (Anl per Z-Bus) is greater than 1.

AUS

Legt fest, ob der Wichtungsfaktor bei der Berechnung des Zieldrucks berücksichtigt werden soll.

AUS nicht berücksichtigen AN berücksichtigen Diese Zeile ist nur sichtbar, wenn seral link (Anl per Z-Bus) größeer als 1 ist.

Doc. no.: 4007 178 070 BA 00

VLVT / 01

5.49

AUTOMATIC SEQ.SELECTION AUTOMATIC SEQ.SELECTION Tab. 16: AUTOMATIC SEQ.SELECTION English-language display

English-language meaning German-language display

German-language meaning

Ignore press. * 0

Determines whether, during the pretensioning procedure, the pretensioning pressure should be controlled or just the reaching of the setting time limitation. Values: 0=controlled to pressure, 1=time controlled (not recommended).

Minimum value=0 Maximum value=1

Ignor. Druck *0

Legt fest, ob beim Vorspannvorgang auf den Vorspanndruck oder lediglich auf Erreichen der Stellzeitbegrenzung geregelt werden soll. Werte: 0=auf Druck geregelt, 1=zeitgesteuert (nicht empfohlen).

Minimalwert=0 Maximalwert=1

Skip prestart *0

Determines whether, with the arrival of the start-up signal, the pretensioning procedure should be carried out or whether the automatic sequence should already be activated.

Values: 0=pretension, 1=no pretension (not recommended).

Minimum value=0 Maximum value=1

Kein Vorspann. *0

Legt fest, ob bei Eintreffen des Anlaufsignals der Vorspannvorgang durchgeführt, oder bereits die Automatik aktiviert werden soll. Werte: 0=Vorspannen, 1=nicht vorspannen (nicht empfohlen).

Minimalwert=0 Maximalwert=1

water flush

This parameter determines whether or not the tensionable drive frame is flushed in automatic mode.

Minimum value=0 Maximum value=1

Wasser Spülung

Determines whether only one of the two conveyor signals (“Prewarning” and “Conveyor is running”) should be used for starting the automatic sequence.

If this parameter is set to 1, then the pretensioning cycle will firstly, in any case, be started with the arrival of one of the two conveyor signals, and subsequently (Signal time/Startingtime parameter in the system parameters column) the automatic sequence activated. Values: 0=no start without second signal, 1=start without second signal.

Start ohn.Sig. *0

*1

Start aft.tout *0

5.50

*1

Diesre Parameter legt fest ob der Spannrahmen im Automatikbetrieb gespült wird.

Minimalwert=0 Maximalwert=1 Legt fest, ob nur eines der beiden Förderersignale (’Vorwarnung’ und ’Förderer läuft’) zum Start der Automatik benutzt werden soll. Wird dieser Parameter auf 1 gesetzt, wird bei Eintreffen eines der beiden Förderersignale in jedem Fall zuerst der Vorspannzyklus eingeleitet und anschließend zeitgesteuert (Parameter Signalzeit in der Spalte Systemparameter) die Automatik aktiviert. Werte: 0=kein Start ohne zweites Signal, 1=Start ohne zweites Signal.

Chain tensioner PMC®-R

Appendix 1: Error messages Appendix 1: Error messages If an error occurs that leads to a shutdown of the automatic sequence, then the cause of the error will be entered the HIST. ERROR menu. The menu lists the last 20 causes that had led to a shutdown. The most recent error is always placed at Index 0, the last error at Index 19. The list cannot be deleted. In addition, the LED flashes in key 9, as well as the warning lamp, in order to signal the appearance of an error independent of the display unit. This blinking displays are switched off when the Key T [ENTER] in the ERROR MESSAGES column is pressed repeatedly until all the stored errors are deleted.

Tab. 17: List of the switchoff causes for the error messages history: English-language display

English-language meaning German-language display

German-language meaning

Start-up sequence

The complete start-up sequence was not run through. The “Conveyor is running” signal is missing.

Vorspannzyklus

Es wurde nicht die vollständige Anlaufsequenz durchlaufen. Signal Förderer läuft fehlt.

D1 sensor press

Error at sensor port D1. No valid value is present from the pressure sensor. The regulator cannot work correctly.

D1 Sensor Druck

Fehler am Sensorport D1.Es liegt kein gültiger Wert vom Drucksensor vor.

Regelung kann nicht korrekt arbeiten.

Com. not active

Communication with the gear operation unit is disrupted. No current status information is available from the conveyor.

Kom. Nicht aktiv

Die Kommunikation zur Getriebesteuerung ist gestört. Es liegen keine aktuellen Statusinformationen vom Förderer vor.

Line Face

Communication with the longwall is disrupted. No current information is available regarding the location of the mining machine. Control signals for the jack cylinder may be absent.

Leit. Streb

Die Kommunikation zum Streb ist gestört. Es liegt keine aktuellen Information über den Standort der Gewinnungsmaschine vor.

Steuersignale für die Jackzylinder können fehlen.

Cylinder path end

The max./min. absolute cylinder distance has been reached. The cylinder is no longer in the optimal control range. If the cylinder is completely extended, then the chain must be shortened.

If the cylinder is completely retracted, then the chain must be lengthened.

Zylinderwegende

Es wurde der max./min. absolute Zylinderweg erreicht. Der Zylinder liegt nicht mehr im optimalen Regelbereich. Ist der Zylinder komplett ausgefahren, dann muss die Kette gekürzt werden.

Ist der Zylinder komplett eingefahren, dann muss die Kette verlängert werden.

Post extend cnt.

The maximum number of tensioning attempts has been reached without the minimum extension distance or the target pressure having been achieved. Check the ease of movement of the tensionable drive frame.

Spannversuche

Die maximale Anzahl an Spannversuchen ist erreicht, ohne dass der min.

Ausfahrweg oder der Zieldruck erreicht wurden.

Gängigkeit des Spannrahmens überprüfen

Doc. no.: 4007 178 070 BA 00

VLVT / 01

5.51

Appendix 1.2: Saved error messages start-up pressure

The timer has run out without the parametered pretensioning/start-up pressure having been achieved.

Vorspanndruck

Der Timer ist abgelaufen, ohne dass der parametrierte Vorspanndruck erreicht wurde.

start-up way

The timer has run out without the parametered pretensioning/start-up distance having been reached.

Vorspannweg

Der Timer ist abgelaufen, ohne dass der parametrierte Vorspannweg erreicht wurde.

Appendix 1.2: Saved error messages All system errors (or warnings) that have occurred since the initialization of the automatic sequence are saved in the Error messages column, until they are deleted manually or through re-initialization of the automatic sequence. The user can delete the error message currently shown in the display by pressing the T key [ENTER]. If no errors are saved, then the text ‘No errors’ is displayed.

Tab. 18: List of the error messages English-language display

English-language meaning German-language display

German-language meaning

B1 sensor LWC

Error at Port B1. No signal from the LWC

Fehler am Port B1. Kein Signal vom LWC

B2 Codeplug

Error at Port B2. The B2 Sensor Codeplug codeplug does not provide a valid value.

Fehler am Port B2. Der Codeplug liefert keinen gültigen Wert.

C1 Booter

Error at Port C1.

C1 Booter

Fehler am Port C1.

C2 ser.link face

Error at Port C2.

C2 Kopplung Streb

Fehler am Port C2.

D1 sensor press

Error at Port D1. The pressure transducer in the tensioner cylinder does not provide a valid value.

D1 Sensor Druck

Fehler am Port D1. Der Druckgeber im Spannzylinder liefert keinen gültigen Wert.

D2 sensor ram

Error at Port D2. The reed rod in the tensioner cylinder does not provide a valid value.

D2 Sensor Weg

Fehler am Port D2. Der Reedstab am Spannzylinder liefert keinen gültigen Wert.

SCU was booted

The SCU has been rebooted

SCU gebootet

Die SCU wurde neu gebootet

retract timeout

Relief time (max. valve switching time) exceeded

Entspannzeit

Entspannzeit (max.

Ventilschaltzeit) überschritten

extend timeout

Tensioning time (max. valve switching time) exceeded

Spannzeit

Spannzeit (max.

Ventilschaltzeit) überschritten

Cylinder stroke

The limit stop was reached during a setting procedure

Zylinderwegende

Bei einem Stellvorgang wurde der Endanschlag erreicht

warning cyl str.

The warning limit has been reached during a setting procedure.

Warnung Zyl.weg

Bei einem Stellvorgang wurde die Warngrenze erreicht.

Post retrac cnt.

Max. number of those relief cycles cancelled due to errors was exceeded

Entspannversuch

Max. Anzahl der wegen Fehler abgebrochener Entspannzyklen wurde überschritten

Post extend cnt

Max. number of those tensioning cycles cancelled due to errors was exceeded

Spannversuche

Max. Anzahl der wegen Fehler abgebrochener Spannzyklen wurde überschritten

5.52

B1 Sensor LWC

Chain tensioner PMC®-R

Appendix 2: Meaning of the LED - displays in keys 1 to 9 Autom. Shutdown

The automatic sequence was shut down due to an error

Auto.Abschaltung

Aufgrund eines Fehlers wurde die Automatik abgeschaltet

Comm. not active

DUST communication transmission and reception faulty

Kom. nicht aktiv

DUST - Kommunikation Senden und Empfangen gestört

Line Face

Communication with the longwall is disrupted.

Leit. StrebLeit. Streb

Die Kommunikation zum Streb ist gestört.

start-up pressure

Pretensioning cycle: Pretens.pressure could not be reached during setting time

Vorspanndruck

Vorspannzyklus: Vorsp.druck konnte nicht während der Stellzeit erreicht werden

English-language display

English-language meaning German-language display

German-language meaning

start-up stroke

The minimum pretensioning path was not reached

Vorspannweg

Der minimale Vorspannweg wurde nicht erreicht

start-up sequence

Pretensioning cycle: Cycle was cancelled due to an error (signal time / signal logic)

Vorspannzyklus

Vorspannzyklus: Zyklus wurde aufgrund eines Fehlers (Signalzeit / Signallogik) abgebrochen

Appendix 2: Meaning of the LED - displays in keys 1 to 9 In addition to the display texts, signal status or error status of the control system are displayed by the LED displays in the keys 1 to 9.

Tab. 19: Meaning of the LEDs: LED Key 3 On

“Conveyor is running” is signaled.

Off

“Conveyor stop” is signaled. If the LED in key 6 flashes and the LED in key 3 is off at the same time, then this indicates that the line or the signal is faulty.

Flashes

Conveyor signal line faulty or conveyor signal is missing.

LED Key 6 On

“Conveyor start-up warning” is signaled.

Off

“No conveyor start-up” is signaled.

Flashes

The conveyor signal line is faulty or the conveyor status signal is missing.

LED Key 9 Off

No error has occurred since the last manual error acknowledgement or since the last automatic sequence start-up.

Flashes

An error or a warning condition has occurred during the execution of the automatic sequence and was saved in the menu column “Error messages” for later call-up.

Doc. no.: 4007 178 070 BA 00

VLVT / 01

5.53

Optional coupling to the face conveyor Optional coupling to the face conveyor Fig. 9:

Switching of the conveyor 4

2

3

R1 150k

R2 75k

R3 24k

R4 12k

a b 1 1 = SKK24 plug optional at B1 2 = Conveyor prewarning signal 3 = Conveyor run signal 4 = Face conveyor interface

Optional switch relay Fig. 10: Switching of the motor relay

Motor switch relay

1 2

5.54

Chain tensioner PMC®-R

6

Technical data

The PMC®-R control system

Technical data The PMC®-R control system Every shield is equipped with a PMC®-R - Shield Control Unit (SCU), which is the heart of the electrohydraulic control system.

The single control system acquires measurement values such as pressure, movement and switch settings in its own shield. The PMC®-R calculates from this data the required commands for the single shield- and automatic sequence functions, and allows them to be executed by the connected hydraulics valves. The PMC®-R can control and display all functions of a shield and is, simultaneously, the interface between operator and machine. The PMC®-R system can, based on a reliable network, control all individual shield functions. As an interactive system, it allows the user to execute single shield functions as well as automatic sequence functions. Important process values are continuously displayed as an acknowledgement for the operator.

Bucyrus DBT Europe GmbH, Lünen 2008

E

Fig. 11: Front view of the PMC®-R

Design suitable for mining The PMC®-R control device is constructed with a housing made from stainless steel, which is hermetically sealed due to its design.

The PMC®-R housing is produced with no seam with a flange upon which the keyboard bottom plate is mounted. Furthermore, it contains the emergency stop and shield supports-blocked unit. An O-ring seal under the flange provides for consistency against water up to 3 bar external pressure. The plug side for the connection between I/O unit and electronic accessories is secured three times with the O-ring. The robust housing unit promises additional protection against external influences and a long service life with less maintenance.

Doc. no.: 4007 178 070 BA 00

VLVT / 01

6.3

The PMC®-R control system Rear view of the PMC®-R Fig. 12: Ansicht der Rückseite der PMC®-R

A2 B2 C2 D2 E2

F2

A1 B1 C1 D1 E1

F1

Longwall PMC®-R plug connections Tab. 20: Allocation of the plug connections A1 and F1 and Z BUS,

if needed

Pin1

Pin2

Pin3

Pin4

12V

Data transmission

Data reception

GND (Ground)

E2

A2

B2

C2

D2

DUST coupling to the PMC-D

Code plug (27k longwall/ 15k entry)

ACD coupling to the longwall

Tensioner cylinder path

A1

B1

C1

D1

Neighbouring communication / Voltage supply

LWC Interface

Booter interface

Tensioner cylinder pressure

F2 Valve strip connection

E1

F1 Neighbouring communication / Voltage supply

Coding plug Coding plug SKK24

6.4

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

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Tab. 21: Designation of the port of the PMC®-R

The PMC®-R control system

Bucyrus DBT Europe GmbH, Lünen 2008

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Fig. 14: Coding plug SKK24

Fig. 13:

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Coding plug

6.5

The PMC®-R control system

Bucyrus DBT Europe GmbH, Lünen 2008

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The coding plug is plugged on the PMC®-R at the B2 connection and recognized and read in during start-up.

6.6

Chain tensioner PMC®-R

The PMC®-R control system The following types of coding plugs are intended for Abaschevskaja: Tab. 22: SKK24 coding plug types and their allocation Parts number

Coding

Function

CP1 27K

4008 004 840 00 02

27 kOhm

Longwall armour control unit

CP1 15K

4008 004 830 00 02

15 kOhm

Stage armour control unit

Bucyrus DBT Europe GmbH, Lünen 2008

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Model

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6.7

Solenoid driver (VA) Solenoid driver (VA) The solenoid driver is placed at a distance from the PMC®-R, in accordance with the modular concept. The VA can switch up to 22 valves. A four-conductor cable connects the VA with the PMC®-R. A switching circuit in the VA monitors the data flow between the switching circuits and the PMC®-R and determines that the values are valid or reports a defect. The VA is completely covered by a 2-component resin cast. Three LEDs in the middle show the function of the VA on a continuous basis and provide the following information: J Yellow LED: 12 Volt is present, J Green LED indicates correct data flow, J Red LED indicates errors in the data flow between PMC® -R and

VA

Fig. 15: Drawing of the valve connection strip with numbers of the OS 4T connections A

B

1/2

C

D

5/6 3/4

E

G

F

9/10 7/8

H

I

15/16 11/12

13/14

J

K

19/20 17/18

21/22

Connection to the PMC®-R

In addition to the connection for the PMC®-R, two groups of connections are lined up on the valve strip: J Connection A to F (six-member group) J Connection G to K (five-member group)

All connections are suitable for triggering double solenoid valves.

The connections of the five-member group (G - K) also offer the possibility of reading from sensors.

Important!

The connecting cables to such sensors must have a rotator; they are not permitted to have 1:1 through connections (see original drawings and parts lists!)

Allocations of solenoid driver Tab. 23: Valve allocation Valve block

Function

Valve connection strip

A

extend chain tension cylinder

1

A

retract chain tension cylinder

2

B

Warning on / off

3

B

None listed

4

C

pressure switch on / off

5

C

None listed

6

D

error switch on / off

7

D

None listed

8

6.8

Chain tensioner PMC®-R

Allocations of solenoid driver Valve block

Function

Valve connection strip

E

None listed

9

E

None listed

10

F

flushing tensioner frame

11

F

None listed

12

G

None listed

13

G

None listed

14

H

None listed

15

H

None listed

16

I

None listed

17

I

None listed

18

J

None listed

19

J

None listed

20

K

alarm switch on / off

21

K

None listed

22

Fig. 16: Drawing of the valve connection strip with numbers of the OS4 connections A

B

1/2

C

D

5/6 3/4

E

F

G

9/10 7/8

H

I

15/16 11/12

13/14

J

K

19/20 17/18

21/22

Connection to the PMC®-R

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6.9

VALVE STRIP CABLE VALVE STRIP CABLE 4-conductor lines with OS 4T plugs on both sides are used between the valve connection strips and the valves. All contacts are gold-coated.

Fig. 17: CABLE; SKK24FB - OS-4T; 1000 LG.

Z

5

4

3

1 2

6

5 = OS 4T - plug 6 = SKK24 - plug Tab. 24: Pin allocation VALVE STRIP CABLE SKK24 - OS 4T

6.10

Pin

Allocation

Conductor color

1

12V

white

2

Data

brown

3

Data

green

4

free

yellow

Chain tensioner PMC®-R

VALVE CABLE VALVE CABLE 4-conductor lines with OS 4T plugs on both sides are used between the valve connection strips and the valves. All contacts are gold-coated.

Fig. 18: CABLE; OS-4T - OS-4T; 2000LG

Z 5 4

3

1 2

5

5 OS 4T - plug Tab. 25: Pin allocation VALVE CABLE OS 4T - OS 4T

Doc. no.: 4007 178 070 BA 00

Pin

Allocation

Conductor color

1

12 V

white

2

Electric valve 1 GND

brown

3

Electric valve 2 GND

green

4

not used for valve control

yellow

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6.11

Electric power supply Electric power supply Figure 19 shows an explosions-protected housing for electric power supply for the PMC®-R with integrated supply adapter. The double current supply contains two intrinsically safe 12 V direct-current supplies each for one group of 5 shields. One power supply is therefore required for 10 shields.

Fig. 20: Double power supply with integrated supply adapter

1

2 3

1 Supply voltage connection 2 Connection for PMC®-R Port A1 3 Connection for PMC®-R Port F1

Technical data: J AC Supply voltage: voltage AC 48-230 Volts J DC Output: max voltage 12.5 V DC J Max current 2 A

6.12

Chain tensioner PMC®-R

Sensors Sensors A variety of sensors are available in order to utilise all of the possibilities of the PMC®-R individual controls. Analogue sensors exist for pressure measurement and step distance measurement.

Pressure sensor A pressure sensor with a very low current consumption was developed for the PMC®-R system. Basis of the pressure sensor is a “Wheatstone” measuring bridge which is attached to a ceramic membrane. A measurement-value booster, which generates a measuring voltage from 0.5 to 4.5 V for a measuring range from 0 to 600 bar, is installed in the pressure sensor housing. The hydraulic side of the pressure sensor (plug-type connector DN10) is directly connected with the measuring body of the sensor. The electrical side has an SKK24 coupler for the electrical connection between the PMC®-R and cylinder - using SKK24 hose cables or lines. For reasons of safety in the face of mechanical loads, these cable connections should be made with hose cable. The measured values of the sensor allow simple measurements such as for shield setting, as well as special automation tasks such as automatic readjustment sequences, shield pulling under roof contact or adjustable setting pressure, etc.

Fig. 21: PRESSURE SENSOR IPS 600; ATEX 8

4

2

3

1

6

5

9

4 7 1 Name plate, if not lasered 2 Position of the lasered name plate details 3 SKK24 coupler 4 Bore holes for SKK24 clamps 5 Sealing groove on the hydraulics with O-ring 6 Groove for hydraulic clamp 7 Protective cap SKK24-side 8 Protective cap on the hydraulics 9 Bore holes for guide pins Fig. 22: Illustration of the pressure sensor

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Sensors Fig. 23: Sectional drawing of the pressure sensor

1

3 2

1 SKK24 coupler 2 Intensifier 3 Membrane

Fig. 24: Measurement diagram of the pressure sensor Signal (mA) 1 Supply voltage

12V

Signal output

0.2 - 1 mA

Current consumption

10 mA 0.2 bar 0 100

6.14

200

300 400 500 600

Chain tensioner PMC®-R

SKK 24 Hose cable system SKK 24 Hose cable system The hose cables are used with SKK 24 plug connectors for the connections from shield to shield. A plug clamp prevents pulling out with completed connections and maintains a reliable connection suitable for mining situations.

Fig. 25: Steel-armoured hose cable with SKK24 plugs Steel-armoured hose

rotatable 355°

SKK-24 plug

The contacts are gold-coated.

Fig. 26: SKK24 plug utilization with Pin numbers

2 1 3 4 Pin number

Frontal view of the connection plug

Tab. 26: Allocation of the SKK24 _ plug

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Pin

Allocation

Conductor colorisas

1

+12 Volt

white

2

Data

brown

3

Data

green

4

Ground (GND)

yellow

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6.15

Sensors Sensors Reed measurement rod Walking unit travel is measured using a reed rod, which is installed in the walking cylinder. The measuring contacts are installed in a stainless steel pipe and are actuated using a ring magnet, which is installed in the piston rod. The accuracy of measurement is approx.

4 mm.

Fig. 27: Sectional drawing (schematic diagram) of the measuring rod X=100%

X=0%

Annular magnet

12V 0.5-4.5V 0V

Electronics

Reed contact

Ring magnet

Casting compound

Rust-free pipe

Fig. 28: Measurement diagram of the reed rod Signal (V) 4.5 Supply voltage

12V

Signal output

0.5V – 4.5V

Current consumption

10 mA 0.5 % Way 0

6.16

100

Chain tensioner PMC®-R

Isolations adapter (IA) Isolations adapter (IA) The isolations adapter is required for the galvanic separation of two neighbouring electrical circuits. The data from one electrical circuit can be transmitted to the other by means of an optical coupling while the two electrical circuits are separated from one another. The installation of an isolations adapter after 4 shields to the left and to the right of the power supply is thus required. The isolations adapter is installed in a stainless steel housing and cast in silicone resin.

Fig. 29: Isolations adapter PMC II2 BIDI COUPLER;ATEX 1

2

2

3

3

2

2

1 SKK24 - Connection (red for the connection of the A1 Port of the PMC®-R) 2 Bore hole for fastening the BIDI coupler 3 Bore holes for the SKK24 retaining clips Fig. 30: Example for assembly

red A1

F1

Important!

The SKK24 coupler marked in red must be connected with the PMC®-R A1 connection! The PMC®-R network cannot function if the red SKK24 coupler is not connected to the PMC®-R A1 connection!

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6.17

Isolations adapter (IA)

6.18

Chain tensioner PMC®-R

7

For your information

Our service

For your information Our service If you need to order spare parts or if technical problems occur, please contact our after-sales service personnel or contact us direct (Homepage: www.bucyrus.com).

Service addresses Europe Germany

Bucyrus DBT Europe GmbH Industriestraße 1 D-44534 Lünen Tel: +49 / 23 06 70 9 - 0 Fax: +49 / 23 06 70 9 - 1421 E-mail: info@de.bucyrus.com

Great Britain

Bucyrus UK Ltd.

Bucyrus DBT Europe GmbH, Lünen 2008

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Hallam Fields Road Ilkeston, Derbyshire DE7 4BS UK Tel: +44 / 11 59 51 - 2500 Fax: +44 / 11 59 32 - 9683 E-mail: info@gb.bucyrus.com Bucyrus UK Ltd. 2 Renshaw Place Holytown Motherwell, ML1 4UF North Lanarkshire Scotland Tel: Fax: Poland

+44 / 16 98 83 5 - 000 +44 / 16 98 83 5 - 038

Bucyrus Polska Sp. z.o.o. ul. Fabryczna 6, 41-404 Myslowice Tel: Fax:

Russia

+48 / 32 31 70 - 500 +48 / 32 31 70 - 509

Bucyrus DBT Europe GmbH Office Moskau Bolschoi Tscherkassi Per. No. 15, Office 310 103626 Moskau Tel: +7 / 49 56 23 - 5396 Fax: +7 / 49 59 24 - 8363 E-mail: viktor.sobolev@ru.bucyrus.com

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7.3

Our service OOO Bucyrus Service ul. Grdiny, 4 office 1 654066 Novokuzneck, Kemerovskaja obl.

Tel: +7 / 38 43 35 - 3441 Fax: +7 / 38 43 35 - 3442 E-mail: evgeniya.belousova@ru.bucyrus.com

America USA

Bucyrus America Inc. 2045 West Pike Street Houston, PA 15342 - 1010 Tel: +1 / 72 47 43 - 1200 Fax: +1 / 72 47 43 - 1201 E-mail: info@us.bucyrus.com Bucyrus America Inc. 4041 Wurno Road Pulaski, VA 24301 +1 / 54 09 80 - 4530 +1 / 54 09 94 - 3889 Bucyrus DBT Europe GmbH, Lünen 2008

E

Tel: Fax:

Australia Australia

Bucyrus Australia Underground Pty. Ltd. Customer Service 20 Killara Close, Beresfield, New South Wales 2322 Tel: Fax:

+61 / 24 91 4 - 7144 +61 / 24 91 4 - 7169

Bucyrus Australia Underground Pty. Ltd. 14 Commercial Avenue Paget M.M.C Box 5182 Mackay, Queensland 4741 Tel: Fax:

+61 / 74 95 2 - 0000 +61 / 74 95 2 - 0099

Africa South Africa

Bucyrus Africa Underground Pty. Ltd. Corner of Gamma and Zeta Roads Industries West Germiston 1401 Tel: + 27 / 11 82 5 - 8212 Fax: + 27 / 11 82 5 - 7389 E-mail: hetta.fuller@za.bucyrus.com

7.4

Chain tensioner PMC®-R

Our service Asia China

Bucyrus DBT Europe GmbH Beijing Representative Office Suite 1112, Tower B Full Link Plaza No. 18 Chaowai Street Beijing 100020 Tel: +86 / 10 65 88 - 2998 Fax: +86 / 10 65 88 - 6570 E-mail: Info.beijing@cn.bucyrus.com Bucyrus (Langfang) Mining Machinery Co. Ltd. Jinyua. Road - Langfang Economic and Technical Development Zone Hebei Province 065001 Tel: + 86 / 31 66 08 6 - 840 (& 841, 842, 843) Fax: + 86 / 31 66 08 6 - 845 E-mail: Info.langfang@cn.bucyrus.com Bucyrus (Tangshan) Mining Machinery Co. Ltd.

Bucyrus DBT Europe GmbH, Lünen 2008

E

No. 4 Gangyao Road Tangshan 063027 Hebei Province Tel: +86 / 31 53 20 - 3117 (& 3445, 3404) Fax: +86 / 31 53 20 - 3438 E-mail: Info.tangshan@cn.bucyrus.com

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7.5

Standards and guidelines Standards and guidelines Referenced national standards and guidelines Tab. 27: Referenced national standards and guidelines, extract

Designation

Title

DIN 2000 DIN 6789 DIN 20043 DIN 24320 DIN 24343 DIN 24346 DIN 51558-1 DIN 51575

Quality of drinking water Documentation System Plug Connectors for Hydraulics Fire-resistant hydraulic fluids Maintenance- and Inspections list for Hydraulic Systems Hydraulic Systems - DesignPrinciples Determination of the acid number Determination of sulphate ash Tensioning force, tightening torques and surface pressure for bolts T-head-bolts Lubricating greases and solid lubricants Non metallic (coating) surface protection Approval procedure for fire-resistant HFA-fluids in mining

EWN 6003 1)

1985-02 1985-02 1992-06 1985-02 2005-03

Referenced european standards and guidelines Tab. 28: Referenced european standards and guidelines, extract

Designation

Date of issue

Title

Directive of the European Parliament and the Council Directive 98/37/EWG on the approximation of the laws of the member states relating to machinery Directive of the European Parliament and the Council on the approximation of the laws of the member states Directive 94/9/EG concerning equipment and protective systems intended for use in potentially explosive atmospheres DIN EN ISO 12100-1 Safety of Machinery DIN EN ISO 12100-2 Safety of Machinery Nonelectrical equipment for potentially explosive atmosDIN EN 13463-1 pheres - Part 1: Basic method and requirements Electrical apparatus for explosive gas atmospheres DIN EN 60079 - Part 0: General requirements DIN EN 60445 Basic and safety principles for man - machine interface Preparation of instructions DIN EN 62079 - Structuring, content and presentation Petroleum product and bituminous materials DIN ISO 3733 - Determination of water - Distillation method Underground mining machines - Equipment and compoDIN EN 1710 nents intended for use in potentiallyexplosive atmospheres in mines Mobile extraction machines on the face - Safety requireDIN EN 1552 ments for shearer loaders and plough systems -

1998-06-22

1994-03-23 2004-04 2004-04 2002-04 2004-12 2000-08 2001-11 2003-02 2006-01 2003-09

1) EWN = standard

7.6

Chain tensioner PMC®-R

Bucyrus DBT Europe GmbH, Lünen 2008

E

EWN 6110 1) EWN 7068 1) EWN 7069 1) EWN 8350-1 1)

Date of issue 2000-10 1990-09 2003-09 1986-08 1982-02 1984-12 1979-07 1984-11