Technical Manual
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INTRODUCTION
This Maintenance Support package is an integrated hardware and software system which provides long and short term information about the status of the various electrical and mechanical components of the dragline.
On Bucyrus Erie manufactured excavators, all master control functions are directed by the PLC (Programmable Logic controller). This system is a microprocessor based control system that performs all of the logic needed to coordinate and control all of the systems on the machine. These systems break down into the following groups, some of which may be optional on the excavator:
1. High Voltage Switchgear system
2. Motor-Generator Start-Up system (if applicable)
3. Hoist Motion Control system
4. swing Motion Control System
5. Drag or Crowd Control system
6. Propel Control & Propel Transfer System
7. Propel Synchronizing (if applicable)
8. Boom Antitightline Control (if applicable)
9. Auxilliary Control System
10. Lube System Control & Monitoring
11. House Heater Control System (if applicable)
12. Fault Monitoring & Display system
13. Electrical Motion Signal Monitoring
14. Optional Temperature Monitoring
15. Special Customer Required Monitoring
The PLC has only enough memory to control and coordinate all of these functions. Relatively crude displays are available on the operator's cab CRT which is fed by the PLC. When a customer wants more detailed displays and significantly improved troubleshooting aids, a Maintenance Support system may be purchased. This system has the capability (memory & speed) to accept all of the data collected by the PLC, organize it, and display it in a manner more usable by the maintenance people to minimize down time.
Essentially, the data is collected by a control PLC from which it is sent to the Maintenance Support computer where it can be graphically and numerically displayed. Numerous signals are also monitored to determine if alarm conditions exist. When an alarm occurs, the operator and any Control Room occupant are signalled and the appropriate data is saved to a file on the hard drive. The approximate location of the alarm is displayed on the Maintenance Support CRT. The computer file that is produced is compatible with LOTUS 1,2,3 and can be directly imported into a customer supplied system, by using the FILES-IMPORT-NUMBERS sequence. Similar files can be made at the command of a technician. Xl:9849
• Thank you very much for reading the preview of the manual.
• You can download the complete manual from: www.heydownloads.com by clicking the link below
• Please note: If there is no response to CLICKING the link, please download this PDF first and then click on it.