58 minute read
Input/Output Signals of the AML System (GR-600-1/GR-800-1)
CN 2 connector
Pin No. name
22 Di20
23 CNTL 3P
24 CNTL 3N
25 CNTL 4P
26 CNTL 4N
Signal names and functions
Signal name: Left swing operation detector switch input
Input from the switch detecting left swing operation.
Switch ON (DC0V): No left swing operation is detected.
Switch OFF (DC5V): Left swing operation is detected.
Signal name: Boom raising proportional control valve output
Current controlled by the AML is output from the AML to the boom raising proportional control valve when the boom raising is stopped by elevation slow stop.
Output voltage: Square wave 0 to 24V
Signal name: Ground terminal for boom raising proportional control valve
Input voltage: DC0V
Signal name: Boom lowering proportional control valve output
Current controlled by the AML is output from the AML to the boom lowering proportional control valve when the boom lowering is stopped by elevation slow stop.
Output voltage: Square wave 0 to 24V
Signal name: Ground terminal for boom lowering proportional control valve
Input voltage: DC0V
Input/Output Signals of the AML System (GR-600-1/GR-800-1)
CN3 connector signals and functions are shown below:
CN 3 connector
Pin No. Name
Signal names and functions
Signal name: AML 90% alarm output
OC (Open collector) output turns ON when the Load moment ratio is between 90% and 100%.
OC output “ON” (DC0V): External indicator lamp indicating 90% is lit.
OC output “OFF” (DC24V): External indicator lamp indicating 90% goes out.
While boom lift with the jib mounted is performed, OC output turns ON when the load moment ratio reaches the ranges listed below, depending on the outrigger extension width.
GR-600-1 GR-800-1
Maximum (23’7-1/2”) (7.2m) 83% Moment ratio < 93% 84% Moment ratio < 94%
Middle (21’11-3/4”) (6.7m) 82% Moment ratio < 92% 83% Moment ratio < 93%
Middle (18’1/2”) (5.5m) 81% Moment ratio < 91% 82% Moment ratio < 92%
Signal name: AML 100% alarm output
OC (Open collector) output turns ON when the load moment ratio exceeds 100% or automatic stop function is cancelled.
OC output “ON” (DC0V): External indicator lamp indicating 100% is lit.
OC output “OFF” (DC24V): External indicator lamp indicating 100% goes out. Condition to turn ON OC output
Moment ratio 100%
Anti-twoblock disable switch: pressed.
Override key switch ON position and PTO switch in OVERRIDE position. While boom lift with the jib mounted is performed, OC output turns ON when the load moment ratio reaches the ranges listed below, depending on the outrigger extension width.
Signal name: Auxiliary winch employed output
OC (Open collector) output turns ON when the the auxiliary winch employed is selected
The winch selection indicator lamp is lit when the winch selection switch is set to the auxiliary winch side.
OC output “ON” (DC0V): The winch selection indicator lamp is lit.
OC output “OFF” (DC24V): Normally, the winch selection indicator lamp goes out.
Signal name: Outrigger state emergency register switch input
Switch input representing whether emergency registration of outrigger extension width to the AML during malfunction of the outrigger extension detector system is available.
Switch ON (DC0V): Emergency registration of outrigger extension width is available. Switch OFF (DC5V): No emergency registration is available.
Input/Output Signals of the AML System (GR-600-1/GR-800-1)
CN 3 connector
Pin No. name
12 Di27
13 Di28
16 CNTL 5P
17 CNTL 5N
21 Di21
22 Di22
Signal names and functions
Signal name: Telescoping mode / switch input
Switch input to select the telescoping mode or . (Only for GR-800-1)
Switch ON (DC0V): The telescoping mode is selected.
Switch OFF (DC5V): The telescoping mode is selected.
Signal name: Boom secondary extending switch input
[For GR-600-1]
Switch input to extend the 3rd/top boom sections.
Switch ON (DC0V): The boom secondary extending switch is pressed.
Switch OFF (DC5V): The boom secondary extending switch is not pressed.
[For GR-800-1]
• For the telescoping mode (2nd boom section primary extending mode)
Switch to extend the 3rd/top boom sections after the 2nd boom section extend fully.
Switch ON (DC0V): The boom secondary extending switch is pressed.
Switch OFF (DC5V): The boom secondary extending switch is not pressed.
• For the telescoping mode (3rd/top boom section primary extending mode)
Switch to extend the 2nd boom section after the 3rd/top boom sections extend fully.
Switch ON (DC0V): The boom secondary extending switch is pressed.
Switch OFF (DC5V): The boom secondary extending switch is not pressed.
Signal name: Swing relief proportional control valve output
Current controlled by the AML is output from the AML to the swing relief proportional control valve when boom swing is stopped by swing slow stop while swing free condition is selected.
Signal name: Ground terminal for swing relief proportional control valve output
Input voltage: DC0V
Signal name: Jib state switch input
Switch input to select the state of jib-mounted or jib-unmounted.
Switch ON (DC0V): Jib-unmounted is selected.
Switch OFF (DC5V): Jib-mounted is selected.
Signal name: C/W mount detection switch input
Switch input representing whether the C/W is mounted. (Only for GR-800-1)
Switch ON (DC0V): C/W is mounted.
Switch OFF (DC5V): C/W is not mounted.
Diagram of the AML System (GT-900-1)
Diagram of the AML System (GT-900-1)
Connector Board
Input/Output Signals of the AML System (GT-900-1)
Input/Output Signals of the AML System (GT-900-1)
As shown in the “Diagram of the AML System” on the previous page, the display board, CPU board, analog board, power board, option board and connector board consist inside the AML. The following lists describe the names and functions of the input/output signals on CN1, CN2 and CN3 connectors.
CN1 connector signals and functions are shown below:
CN 1 connector
Pin No. Name
3 ANAIN A
4 ANAIN B
Signal names and functions
Signal name: Boom length detector input
Analog input representing detected boom length.
Input voltage: DC 0 to 4.5 V
Signal name: Boom angle detector input
Analog input representing detected boom angle.
Input voltage: DC 0 to 4.5 V
Signal name: Swing angle detector 1 input
5 ANAIN C
Analog input from the swing angle detector 1 representing detected swing angle.
Input voltage: DC 0 to 4.5 V
Signal name: Swing angle detector 2 input
9 ANAIN D
Analog input from the swing angle detector 2 representing detected swing angle.
Input voltage: DC 0 to 4.5 V
Signal name: Main hydraulic pressure sensor input
10 ANAIN E
Analog input representing detected main hydraulic pressure.
Input voltage: DC 0 to 4.5 V
Signal name: Two-blocking detection switch input
Switch input representing whether two-blocking condition exists.
13 Di1
Switch ON (DC0V): The hook currently in use is in normal state.
Switch OFF (DC24V): The hook currently in use is two-blocking.
Signal name: 2nd boom section full retraction detection switch input
Switch input representing whether the 2nd boom section is fully retracted.
14 Di2
Switch ON (DC0V): 2nd boom section is fully retracted.
Switch OFF (DC24V): 2nd boom section is not fully retracted.
Signal name: 3rd/top boom sections full retraction detection switch input
Switch input representing whether the 3rd/top boom sections are fully retracted.
15 Di3
Switch ON (DC0V): 3rd/top boom sections are fully retracted.
Switch OFF (DC24V): 3rd/top boom sections are not fully retracted.
Signal name: Swing free/lock selector swith input
Switch input representing whether the boom swing is free/lock state.
16 Di4
Switch ON (DC0V): Boom swing lock device is free.
Switch OFF (DC24V): Boom swing lock device is locked.
Input/Output Signals of the AML System (GT-900-1)
CN 1 connector
Pin No. Name
22 ACC
24 Di5
25 Di6
26 Di7
27 Di8
28 Di9
29 Di10
34 ANAING
Signal names and functions
Signal name: Swing stop cancel switch input
Switch input representing whether the swing stop is cancelled.
Input voltage: DC24V
Switch ON (DC24V): Swing stop is cancelled.
Switch OFF (DC0V): Swing stop is functioning.
Signal name: Auti-two block disable switch input
Switch input representing whether automatic stop caused by two-blocking is overridden.
Switch ON (DC0V): Automatic stop caused by two-blocking is cancelled and the alarm buzzer does not sound.
Switch OFF (DC24V): Auti-two block function is ready.
Signal name: Override key switch input
Switch input representing whether automatic stop caused by overloading is overridden.
Switch ON (DC0V): Automatic stop caused by overloading is cancelled.
Switch OFF (DC24V): Automatic stop function is ready.
Signal name: Elevation slow stop cancel switch input
Switch input representing whether elevation slow stop is cancelled.
Switch ON (DC0V): Slow stop function is cancelled.
Switch OFF (DC24V): Slow stop function is ready.
Signal name: Jib stowed detection switch input
Switch input representing whether the jib is stowed.
Switch ON (DC0V): The jib is stowed.
Switch OFF (DC24V): The jib is not stowed.
Signal name: Boom retraction operation detection switch input
Switch input representing whether the boom is retraction operation.
Switch ON (DC0V): No boom retraction operation is detected.
Switch OFF (DC5V): Boom retraction operation is detected.
Signal name: Swing angle detector 1,2 selection (swing dead angle detection) switch input
Switch input representing whether the boom is in the swing dead angle.
Switch ON (DC0V): The boom is in the over-left.
Switch OFF (DC5V): The boom is in the over-right.
Signal name: Input for pressure sensor for moment detection (extension side)
Analog input to detect the elevating cylinder extension pressure.
Input voltage: DC 0 to 5 V
Signal name: Input for pressure sensor for moment detection (retraction side)
35 ANAINH
Analog input to detect the elevating cylinder retraction pressure.
Input voltage: DC 0 to 5 V
Input/Output Signals of the AML System (GT-900-1)
CN2 connector signals and functions are shown below:
CN 2 connector
Pin No. name
Signal names and functions
Signal name: Automatic stop relay output
This relay contact turns OFF and stops crane operation when the crane is overloaded, the hook is two-blocking or the AML main unit is out of order.
Relay ON (DC24V): Normal operation is available.
Relay OFF (DC0V): The crane operation is stopped.
Relay output
ON Moment ratio < 90%
Crane condition
ON 90% Moment ratio < 100%
Moment ratio 100%
OFF
While boom lift with the jib mounted is performed, the crane operation stops automatically when the load moment ratio reaches the ranges listed below.
Moment ratio 85%
OFF Two-blocking.
OFF
The crane movement going beyond the restriction while working range limit is registered.
OFF Failure in the AML unit.
Operated to critical side when backward stability control activated.
OFF
While the extension width of outriggers is minimum and the crane is operating in the over-side area, the crane operation stops automatically when the boom is raised to 71°
Signal name: Jib setting relay output
This relay contact turns ON and jib mounting/stowing operationality indicator lamp is lit, when the jib lock pin is retracted.
Relay ON (DC24V): The indicator lamp id lit.
Relay OFF (DC0V): The indicator lamp is not lit.
Input/Output Signals of the AML System (GT-900-1)
CN 2 connector
Pin No. name
4 RLY 4
Signal names and functions
Signal name: AML alarm relay output
This relay contact turns ON and outputs alarm buzzer when the crane is overloaded.
Relay ON (DC24V): Alarm buzzer is output.
Relay OFF (DC0V): Alarm buzzer is not output.
Relay output Moment condition
OFF Moment ratio < 90%
90% Moment ratio < 100%
While boom lift with the jib mounted is performed, the alarm buzzer is output when the load moment ratio reaches the ranges listed below.
75% Moment ratio < 85%
Moment ratio 100%
Moment ratio 85%
Input/Output Signals of the AML System (GT-900-1)
CN 2 connector
Pin No. name
5 RLY 5
6 RLY 6
Signal names and functions
Signal name: Telescoping control relay output
(A) The telescoping mode (2nd boom section primary extending mode)
<3rd / top boom sections telescope>
The relay turns ON (DC24V) under either of following conditions and 3rd / top boom sections telescope.
1. The boom length is 20.03 m or more.
2. The boom length is 19.23 m -- 20.03 m and 3rd / top boom extension switch is “ON” (Di28/0V).
3. The boom length is 19.23 m -- 20.03 m and 3rd / top boom full retraction detection switch is “OFF” (Di3/24V).
<2nd boom section telescopes>
The relay turns OFF (DC0V) under either of following conditions and 2nd boom section telescopes.
1. The boom length is 19.23 m or less.
2. The boom length is 19.23 m -- 20.03 m and 3rd / top boom full retraction detection switch is “ON” (Di3/0V).
Relay ON (DC24V): 3rd / top boom sections telescope. Relay OFF (DC0V): 2nd boom section telescopes.
(B) The telescoping mode (3rd / top boom sections primary extending mode)
<2nd boom section telescopes>
The relay turns ON (DC24V) under either of following conditions and 2nd boom section telescopes.
1. The boom length is 36.28 m or more.
2. The boom length is 35.48 m -- 36.28 m and 2nd boom extension switch is “ON” (Di28/0V).
3. The boom length is 35.48 m -- 36.28 m and 2nd boom full retraction detection switch is “OFF” (Di3/24V).
<3rd / top boom sections telescope>
The relay turns OFF (DC0V) under either of following conditions and 3rd / top boom sections telescole.
1. The boom length is 35.48 m or less.
2. The boom length is 35.48 m -- 36.28 m and 2nd boom full retraction detection switch is “ON” (Di3/0V).
Relay ON (DC24V): 2nd boom section telescopes.
Relay OFF (DC0V): 3rd / top boom sections telescope.
Signal name: Jib lock lamp relay output
When the jib slides out of the center support on the boom, this relay contact turns ON and the indicator lamp is lit.
Relay ON (DC24V): Jib lock indicator lamp is lit.
Relay OFF (DC0V): Jib lock indicator lamp goes out..
Signal name: Two-blocking alarm relay output
7 RLY 7
This relay contact turns ON and the alarm buzzer is output when the hook block is two-blocking.
Relay ON (DC24V): Alarm buzzer is output.
Relay OFF (DC0V): Alarm buzzer is not output.
Signal name: Main winch hoist-up operation detector switch input
Input from the switch detecting hoist-up operation of the main winch.
9 Di11
Switch ON (DC0V): No hoist-up operation of the main winch is detected.
Switch OFF (DC5V): Hoist-up operation of the main winch is detected.
Input/Output Signals of the AML System (GT-900-1)
CN 2 connector
Pin No. name
11 Di13
13 CNTL 1P
14 CNTL 1N
15 CNTL 2P
Signal names and functions
Signal name: Aux. winch hoist-up operation detector switch input
Input from the switch detecting hoist-up operation of the auxiliary winch. Switch ON (DC0V): No hoist-up operation of the auxiliary winch is detected. Switch OFF (DC5V): Hoist-up operation of the auxiliary winch is detected.
Signal name: Right swing proportional control valve output
Current controlled by the AML is output from the AML to the right swing proportional control valve when the right swing is stopped by automatic swing stop. However, in the following conditions, the automatic swing stop does not activate.
(1) Swing stop/override switch is set to “OVERRIDE”.
(2) Outriggers are not extended.
(3) AML emergency switch is set to “Emergency” and the PTO switch is set to “OVERRIDE”.
Output voltage: Square wave 0 to 24V
Crane condition that causes the automatic swing stop
The moment ratio exceeds 100% due to right swing while the extension widths of four outriggers are different.
The moment ratio reaches 90% or more (not 100%) while the boom lift with the jib mounted is performed.
When the jib set pin is out of inserted condition, the AML assumes that the jib is mounted.
The crane operation exceeds the right swing limit when the swing stop limit is registered.
Signal name: Ground terminal for right swing proportional control valve
Input voltage: DC0V
Signal name: Left swing proportional control valve output
Current controlled by the AML is output from the AML to the left swing proportional control valve when the left swing is stopped by automatic swing stop. However, in the following conditions, the automatic swing stop is not activated.
(1) Swing stop/override switch is set to “OVERRIDE”.
(2) Outriggers are not extended.
(3) AML emergency switch is set to “Emergency” and the PTO switch is set to “OVERRIDE”.
Output voltage: Square wave 0 to 24V Crane condition that causes the automatic swing stop
The moment ratio exceeds 100% due to left swing while the extension widths of four outriggers are different.
The moment ratio reaches 90% or more (not 100%) while the boom lift with the jib mounted is performed.
When the jib set pin is out of inserted condition, the AML assumes that the jib is mounted.
The crane operation exceeds the left swing limit when the swing stop limit is registered.
Input/Output Signals of the AML System (GT-900-1)
CN 2 connector
Pin No. name
16 CNTL 2N
17 Di15
18 Di16
19 Di17
20 Di18
21 Di19
22 Di20
23 CNTL 3P
24 CNTL 3N
25 CNTL 4P
26 CNTL 4N
Signal names and functions
Signal name: Ground terminal for left swing proportional control valve
Input voltage: DC0V
Signal name: Boom extending operation detector switch input
Input from the switch detecting boom extending operation.
Switch ON (DC0V): No boom extending operation is detected.
Switch OFF (DC5V): Boom extending operation is detected.
Signal name: Winch selector switch input
Switch input representing whether Auxiliary winch is employed.
Input from the switch detecting boom retracting operation. Switch ON (DC0V): Auxiliary winch is employed.
Switch OFF (DC5V): Main winch is employed.
Signal name: Boom raising operation detector switch input
Input from the switch detecting boom raising operation.
Switch ON (DC0V): No boom raising operation is detected. Switch OFF (DC5V): Boom raising operation is detected.
Signal name: Boom lowering operation detector switch input
Input from the switch detecting boom lowering operation.
Switch ON (DC0V): No boom lowering operation is detected. Switch OFF (DC5V): Boom lowering operation is detected.
Signal name: Right swing operation detector switch input
Input from the switch detecting right swing operation.
Switch ON (DC0V): No right swing operation is detected.
Switch OFF (DC5V): Right swing operation is detected.
Signal name: Left swing operation detector switch input
Input from the switch detecting left swing operation. Switch ON (DC0V): No left swing operation is detected. Switch OFF (DC5V): Left swing operation is detected.
Signal name: Boom raising proportional control valve output
Current controlled by the AML is output from the AML to the boom raising proportional control valve when the boom raising is stopped by elevation slow stop. Output voltage: Square wave 0 to 24V
Signal name: Ground terminal for boom raising proportional control valve
Input voltage: DC0V
Signal name: Boom lowering proportional control valve output
Current controlled by the AML is output from the AML to the boom lowering proportional control valve when the boom lowering is stopped by elevation slow stop.
Output voltage: Square wave 0 to 24V
Signal name: Ground terminal for boom lowering proportional control valve
Input voltage: DC0V
Input/Output Signals of the AML System (GT-900-1)
CN3 connector signals and functions are shown below:
CN 3 connector
Pin No. Name
2 TR2
3 TR3
4 TR4
5 TR5
6 TR6
10 Di25
Signal names and functions
Signal name: AML 90% alarm output
OC (Open collector) output turns ON when the Load moment ratio is between 90% and 100%.
OC output “ON” (DC0V): External indicator lamp indicating 90% is lit.
OC output “OFF” (DC24V): External indicator lamp indicating 90% goes out.
Signal name: AML 100% alarm output
OC (Open collector) output turns ON when the load moment ratio exceeds 100% or automatic stop function is cancelled.
OC output “ON” (DC0V): External indicator lamp indicating 100% is lit.
OC output “OFF” (DC24V): External indicator lamp indicating 100% goes out. Condition to turn ON OC output
Moment ratio 100%
Anti-twoblock disable switch: pressed.
AML override key switch : “ON”. and AML override switch : “ON”.
Signal name: Front jack overload warning output
OC (Open collector) output turns ON when the front jack overload detection switch is ON.
OC output “ON” (DC0V): The horn sounds.
OC output “OFF” (DC24V): The horn does not sound.
Signal name: Jib set output
OC (Open collector) output turns ON when setting to the jib set with the boom state selection key of AML.
OC output “ON” (DC0V): The jib set pin can be pulled out.
OC output “OFF” (DC24V): The jib set pin cannot be pulled out.
Signal name: Auxiliary winch employed output
OC (Open collector) output turns ON when the the auxiliary winch employed is selected
The winch selection indicator lamp is lit when the winch selection switch is set to the auxiliary winch side.
OC output “ON” (DC0V): The winch selection indicator lamp is lit.
OC output “OFF” (DC24V): Normally, the winch selection indicator lamp goes out.
Signal name: Outrigger state emergency register switch input
Switch input representing whether emergency registration of outrigger extension width to the AML during malfunction of the outrigger extension detector system is available.
Switch ON (DC0V): Emergency registration of outrigger extension width is available. Switch OFF (DC5V): No emergency registration is available.
Input/Output Signals of the AML System (GT-900-1)
CN 3 connector
Pin No. Name
11 Di26
12 Di27
13 Di28
16 CNTL 5P
17 CNTL 5N
21 Di21
22 Di22
23 Di23
24 Di24
Signal names and functions
Signal name: C/W (4) mount detection switch input
Switch input representing whether the C/W is mounted.
Switch ON (DC0V): C/W is mounted.
Switch OFF (DC5V): C/W is not mounted.
Signal name: Telescoping mode / switch input
Switch input to select the telescoping mode or
Switch ON (DC0V): The telescoping mode is selected.
Switch OFF (DC5V): The telescoping mode is selected.
Signal name: Boom secondary extending switch input
• For the telescoping mode (2nd boom section primary extending mode)
Switch to extend the 3rd/top boom sections after the 2nd boom section extend fully.
Switch ON (DC0V): The boom secondary extending switch is pressed.
Switch OFF (DC5V): The boom secondary extending switch is not pressed.
• For the telescoping mode (3rd/top boom section primary extending mode)
Switch to extend the 2nd boom section after the 3rd/top boom sections extend fully.
Switch ON (DC0V): The boom secondary extending switch is pressed.
Switch OFF (DC5V): The boom secondary extending switch is not pressed.
Signal name: Swing relief proportional control valve output
Current controlled by the AML is output from the AML to the swing relief proportional control valve when boom swing is stopped by swing slow stop while swing free condition is selected.
Signal name: Ground terminal for swing relief proportional control valve output
Input voltage: DC0V
Signal name: Jib state switch input
Switch input to select the state of jib-mounted or jib-unmounted.
Switch ON (DC0V): Jib-unmounted is selected.
Switch OFF (DC5V): Jib-mounted is selected.
Signal name: C/W (1) mount detection switch input
Switch input representing whether the C/W is mounted.
Switch ON (DC0V): C/W is mounted.
Switch OFF (DC5V): C/W is not mounted.
Signal name: C/W (2) mount detection switch input
Switch input representing whether the C/W is mounted.
Switch ON (DC0V): C/W is mounted.
Switch OFF (DC5V): C/W is not mounted.
Signal name: C/W (3) mount detection switch input
Switch input representing whether the C/W is mounted.
Switch ON (DC0V): C/W is mounted.
Switch OFF (DC5V): C/W is not mounted.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
[OPERATION]
Functions of and How to Use User Mode (GR-450-1/GR-500-1)
Mode Structure
The AML device has three modes and AML functions are allotted for these models.
2. Maintenance Mode:
Used to make functional checks of AML. See the “ADJUSTMENT AND MAINTENANCE” section.
3. Adjustment Mode:
Used to make detector adjustment. See the “ADJUSTMENT AND MAINTENANCE” section.
1. User Mode:
Used to indicate moment ratio or to perform AML pre-opetational inspection (Normally used).
In normal use, turn ON the protect switch mounted on the adjustment window on the top of AML. AML will go to the user mode when the power turns on.
The abnormality display LED lights when the AML is in abnormal conditions (to indicate that the CPU is faulty).
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Configuration and Functions of the AML System
The AML system is a safety device provided to prevent overloading of the crane which may cause it to overturn or be damaged. The AML system has various kinds of functions, including the following typical functions. Based on the registered work conditions by operator selection and the signals from various sensors, the crane operations are controlled.
(1) Automatic stop function to prevent overloading
The AML calculates and compares the working and rated moment values and displays their ratio. When the working moment exceeds the rated moment (100% or more), failure message is shown, alarm buzzer sounds, and the crane operation toward the critical side stops.
(2) Automatic stop function by backward instability
When the boom is raised to 74° in an over-side area with on-rubber operation.
(3) Working range limit functions
When any working range limit is registered to the AML, the crane is controlled so that the crane work posture does not exceed this registered working range limit. When the crane reaches the registered limit, failure message is shown, alarm buzzer sounds, and the crane operation stops.
(4) Slow stop function
In the following cases, the boom elevation speed gradually decreases to stop before the boom reaches the stoppage position.
• When the automatic stop is caused by overloading (Boom lowering will stop).
• When the automatic stop is caused by backward instability during on-rubber operation (Boom raising will stop).
• When the elevating cylinder reaches its stroke end (Boom raising/lowering will stop).
• When the automatic stop is caused by working range limit function (Boom raising/lowering will stop).
• When the automatic stop is caused in the interference area of engine cover and elevating cylinder (Boom lowering will stop.) (*3)
The situation of automatic stop due to automatic stop function and working range limit function is as listed below, depending on the working condition.
On-outrigger operationOn-rubber operation
Automatic stop by overloading
Hoisting up
Boom lowering
Boom extension
Swing ×
Stop by backward instabilityBoom raising –
Stop at stroke end
Stop by working range restriction
Boom raising/lowering
Boom raising/lowering
Boom extension
Swing ×
Boom lowering ×
Interference area of boom, jib, elevating cylinder and engine cover(*3) Swing ×
: Slow stop : Stop ×: Not stop –: Not relevant (*3): For GR-500-1-00211, 00213, 00214
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
AML System Configuration
(*3): For GR-500-1-00211, 00213, 00214
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Automatic Stop Functions
Causes of automatic stop
•Moment ratio exceeds 100% (*1)
•Two-blocking
•AML system error
Upper boom angle restricted
Working range limit
Lower boom angle restricted
Lifting height restricted
Load radius restricted
Swing restricted
•Backward instability
(*2)
•Stoke end
•Interference area of boom, jib, elevating cylinder and engine cover (*3)
Operation Halted movement
•Hoisting up
•Boom lowering
•Boom extension
•Swing toward critical side
•Boom raising
•Boom lift
•Single top lift
•Jib lift
•Boom lowering
•Boom raising
•Boom extension
•Boom lowering
•Boom extension
•Swing
•Boom lift
•Single top lift
•Boom lift
•Single top lift
•Jib lift
•Boom raising
•Boom raising
•Boom lowering
•Boom lowering
•Swing to interference side
(*1): For the boom lift with the jib mounted, automatic stop will work when the moment ratio exceeds the value listed below, according to the outrigger extension width:
IW301-0131E54
(*2): Automatic stop will work when the boom is raised to 74° in an over-side area with on-rubber operation.
(*3): For GR-500-1-00211, 00213, 00214
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Alarm Functions
Condition
A control is moved toward critical side (hoist up, boom lowering or boom extension) while two-brocking condition exists.
Anti-twoblock function is deactivated while two-brocking codition exists.
Alarm
Moment display: Displays [Warning:0024].
Buzzer: Sounds continuously.
Moment display: Displays [Warning:0015].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously. Moment ratio exceeds 90%. Moment display: Yellow segment is lit.
External warning lamps: Orange lamp is lit.
Buzzer: Sounds intermittently.
(*4):
(1) is applicable when the outriggers are extended to maximum (22’11-5/8” [7.0m]).
(2) is applicable when the outriggers are extended to middle (21’3-7/8” [6.5m]).
(3) is applicable when the outriggers are extended to middle (16’4-7/8” [5.0m]).
(*5): For the spacification number of GR-500-1-00213 (1M1D-specification)
[NOTICE]
In the above table, "Buzzer" is the device outside the AML unit, outputting buzzing sound. "AML buzzer" is the device inside the AML unit, outputting beeping sound.
A control is moved toward critical side While moment ratio exceeds 100%.
Moment display: Displays [Warning:0023].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously.
AML system errer Moment display: Displays failure messages.
AML Buzzer: Sounds 3 seconds.
The AML buzzer sounds for 3 seconds every time a message appears. It outputs long sounds when slow stop control is activated and outputs short sounds when other controls are activated.
Working range limit function activated.
Moment display: Displays failure messages.
Associated restriction indicator lamp flashes.
Buzzer: Sounds continuously.
AML Buzzer: Sounds 3 seconds.
Operated critical side when backward stability control activated.
Slow stop control
Moment display: Displays [Warning:0025].
AML Buzzer: Sounds 3 seconds.
Moment display: Displays [Warning:0081] or [0082].
AML Buzzer: Sounds 3 seconds.
Boom lift with jib mounted on boom (*4)
(1) Moment ratio is between 84% and 94%.
(2) Moment ratio is between 84% and 94%.
(3) Moment ratio is between 82% and 92%.
(1) Moment ratio exceeds [93%(*5)] 94% or more.
(2) Moment ratio exceeds [92%(*5)] 94%.
(3) Moment ratio exceeds [75%(*5)] 92%.
Moment display: Corresponding segment is lit. External warning lamps : Orange lamp is lit.
Buzzer: Sounds intermittently.
Moment display: Displays [Warning:0088].
External warning lamps : Red lamp is lit.
Buzzer: Sounds continuously.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Names and Functions of AML Main Unit Parts
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
1. Moment ratio mark
The moment ratios on the bargraph are color coded as follows: safe (green), notice (yellow) and limit (red).
2. Moment display
Normally displays a moment ratio on a bargraph. Displays the main-circuit pressure when the display alteration key is pressed. Also displays error messages when an operational or system error occurs.
3. Scroll-up key
Used to see the previous lines of message displayed on the moment display.
4. Scroll-down key
Used to see the next lines of message displayed on the moment display.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1) Display Panel
1. Jib angle display
When jib lift is selected, the jib offset angle is displayed.
When the number of parts of line select key or the display alteration key is pressed, the number of parts of line is displayed. Also, when an upper boom angle limit has been registered, the registered upper boom angle limit value is displayed while the register key is pressed.
2. Number of parts of line symbol
This symbol indicates that the jib angle display [1] is showing the number of parts of line.
3. Boom length symbol
This symbol indicates that the boom length display [13] is showing the boom length.
5. Jib angle symbol
This symbol indicates that the jib angle display [1] is showing the jib offset angle.
6. Jib lift symbol
This symbol indicates that the jib lift is selected. It also indicates the condition of the jib.
7. Actual load display
Displays the actual load.
8. Rated lifting capacity display
Displays the rated lifting capacity.
9. Load radius limit symbol
This symbol indicates that the load radius display [11] is showing the registered load radius limit value.
The load radius symbol [10] is also displayed at the same time.
10. Load radius symbol
This symbol indicates that the load radius display [11] is showing the load radius.
11. Load radius display
Normally displays the crane's load radius. Displays the boom swing angle while the display alteration key is pressed.
When a load radius limit has been registered, the registered load radius limit value is displayed while the register key is pressed.
13. Boom length display
Normally displays the boom length. Displays the lifting height while the display alteration key is pressed.
When a lifting height limit has been registered, the registered lifting height limit value is displayed while the register key is pressed.
14. Lifting height symbol
This symbol indicates the boom length display [13] is showing the lifting height.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
15. Lifting height limit symbol
This symbol indicates that the boom length display [13] is showing the registered lifting height limit value.
The lifting height symbol [14] is also displayed at the same time.
16. Upper boom angle limit symbol
This symbol indicates that the jib angle display [1] is showing the registered upper boom angle limit value.
17. Boom angle symbol
This symbol indicates that the boom angle display [19] is showing the boom angle.
18. Lower boom angle limit symbol
This symbol indicates that the boom angle display [19] is showing the registered lower boom angle limit value.
19. Boom angle display
Normally displays the boom angle. Displays the moment ratio when the display alteration key is pressed.
When a lower boom angle limit has been registered, the registered lower boom angle limit value is displayed while the register key is pressed.
20. Boom lift symbol
This symbol indicates that the boom lift is selected.
21. Single-top lift symbol
This symbol indicates that the single-top lift is selected.
1. Increase key Used to increase the selected value.
2. Decrease key Used to decrease the selected value.
3. Outrigger mode select key Used to select the outrigger status.
4. Lift mode select key Used to select the lift status.
5. Check key
Used to check the AML system functions.
6. Register key
Used to register a selected status.
7. Display alteration key
Used to alter the displays on display panel 1.
8. Load radius restriction key
Used to activate and release the load radius limiting function.
9. Load radius restriction indicator lamp Lights up when the load radius limiting function is activated.
10.Lower boom angle restriction key
Used to activate and release the lowermost boom angle limiting function.
11. Lower boom angle restriction indicator lamp Lights up when the lowermost boom angle limiting function is activated.
12.Upper boom angle restriction key
Used to activate and release the uppermost boom angle limiting function.
13.Upper boom angle restriction indicator lamp Lights up when the uppermost boom angle limiting function is activated.
14.Lifting height restriction key
Used to activate and release the lifting height limiting function.
15.Lifting height restriction indicator lamp Lights up when lifting height limiting function is activated.
16.Right swing restriction key
Used to activate and release the right swing limiting function.
17.Right swing restriction indicator lamp Lights up when the right swing limiting function is activated.
18.Left swing restriction key
Used to activate and release the left swing limiting function.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
19.Left swing restriction indicator lamp Lights up when the left swing limiting function is activated.
20.Number of parts of line select key Used to select the a number of parts of line.
1. Over-front position symbol
Indicates that the boom is swung into the over-front position.
2. Outrigger state symbol
Indicates the way the outriggers are extended. Flashes while an outrigger state is in process of being registered, and lights up when the registration is completed.
3. "on-rubber" (Outrigger-not-in-use) state symbol
Indicates that the on-rubber operation (non-outrigger operation) is selected. Lights up when the stationary on-rubber operation is selected, and flashes when the traveling on-rubber (creep) operation is selected.
4. Suspension (spring) lock state symbol Lights up when the suspensions (spring) are locked up.
5. Boom position indicator
Indicates the boom position in 10° increments.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Selecting Operational Status
Should the operational status be incorrectly registered, the crane may overturn or be damaged, leading to a serious accident. Prior to every operation, check that the registered status corresponds to the actual status of the crane.
Selecting Outrigger Status
[NOTICE]
The "on-rubber stationary" status is the default status and is automatically selected when the power supply is turned on (the PTO switch is placed in the "ON" position).
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Register the outrigger status using the outrigger mode select key and the register key.
(1) On-outrigger operation
When the outrigger mode select key is pressed, the outrigger state symbols flash in accordance with the status that the AML detects. After making sure that the display conforms to the actual outrigger conditions, press the register key. The outrigger state symbols will change from flashing to continuous lighting, and the moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the state has been registered.
Outrigger mode select key
IW301-0131E61
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
(2) On-rubber operation
Press the outrigger mode select key repeatedly until the display conforms to the actual condition (on-rubber stationary operation or on-rubber creep operation). Then press the register key. The moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the on-rubber state has been registered.
[NOTICE]
The outrigger status automatically changes to on-rubber creep status when an operation is made for stowing the outrigger after the registration of the outrigger status. Be sure to again register the outrigger status, when necessary.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Selecting Lift Status
[NOTICE]
The boom lift status is the default status and is automatically selected (the boom lift symbol lights up) when the power supply is turned on (the PTO switch is placed in the ON position).
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Register the lift status using the lift mode select key and the register key. IW301-0131E65 Lift
Each time the lift mode select key is pressed, the mode changes in numerical sequence, from (1) to (9). The display returns to (1) if you press the switch while the status (9) is displayed on the screen. Select the status that corresponds to the actual lift status.
[NOTICE]
After selecting the intended lift status, press the register key to register the status. The corresponding lift symbols will change from flashing to lighting and the moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the state has been registered.
(When the jib set status is selected, the jib lift symbol will remain flashing.)
Select the boom lift status when lifting a load on the boom with the jib mounted.
Select the jib lift status when lifting a single load using both the boom and jib.
Functions of and How to Use User Mode (GR- 450-1/GR-500-1)
Selecting Number of Parts of line
[NOTICE]
If the registered number of parts of line is smaller than the standard number, a maximum allowable lifting load is limited, depending on the registered number. If zero(0) is registered, however, the AML performs as if the standard number were registered. Similarly, the AML works on the basis of the standard number of parts of line if the registered number is larger than the standard number or other than the values specified for your model.
When the power supply is turned on (i.e. PTO switch ON), the standard number of parts of line corresponding to the work condition is selected.
Register the number of parts of line by use of the number of parts of line select key and the register key, as follows:
Number of parts of line symbol
1. Press the number of parts of line select key. The number of parts of line symbol will flash, and the number of parts of line will be shown on the jib angle display in a flashing mode.
2. Press the increase or the decrease key to set the number to the actual number of parts of line.
[NOTICE]
When the increase or the decrease key is pressed, a numeral showing the number of parts of line changes from flashing to lighting, and increases or decreases.
When the increase or the decrease key is kept pressed, the number of parts of line continuously increases or decreases.
IW301-0134E04
3. Once the intended number of parts of line is set, press the register key to register the number. Then, the number of parts of line symbol will be turned off and the jib angle display will return to a normal status.
[NOTICE]
The number of parts of line can be confirmed by pressing the display alteration key.
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
AML Pre-operational Inspection
WARNING
Operating the crane with a malfunctioning AML could cause the crane to overturn or be damaged. Be sure to perform the pre-operational inspection on the AML system and start the crane only after ensuring that the system is operating properly.
Before starting operation, check that the AML works in good condition, as follows:
1. Press the check key and make sure that the AML is in the following conditions:
• Moment display……All segments light up.
• Display panel (1 and 2)
………………………All segments light up.
• Working range restriction indicator lamp ………………………………All six lamps light up.
• Alarm buzzer………………Sounds continuously.
• Movement toward critical sides ………………………………Automatically halted
2. Press either the register key, display alteration key or check key to return the display to the normal condition.
3. Make sure that the display on the display panels conforms to the actual crane conditions.
(1) Boom length
(2) Boom angle
(3) Jib angle……shown while jib lift is selected
(4) Actual load…With no load on hook, make sure that an approximate mass of the hook block is shown
[NOTICE]
The actual load is not shown correctly if the lift status is not registered correctly.
(5) Outrigger state symbol
(6) Boom position indicator
(7) Over-front position symbol ……shown while the boom is in over-front area IW301-0131E69
IW301-0131E68
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
How to Use the Working Range Limit Function
[NOTICE]
If the working range limit is registered very close to an obstacle, there is a risk of the crane colliding with the obstacle, depending on the operational status and the manner in which the load is handled. When registering a range limit, allow a sufficient clearance to avoid collision.
The working range restricting function makes the boom automatically stop at the previously registered boom angles (upper and lower), lifting height, load radius and swing angle, The function is useful for handling a load in a confined place because it defines the area in which the boom can operate.
[NOTICE]
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Boom Angle Limit
Raise or lower the boom to the desired angle, and press the upper or lower boom angle restriction key. The corresponding restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the boom angle limit has been registered in the memory. When the boom is moved back to an angle within the set limit, the restriction indicator lamp stops flashing and stays lit and the buzzer stops. Thereafter, the upper or lower boom angle restriction indicator lamp flashes and the buzzer sounds continuously whenever the upper or lower limit previously registered is reached. (Boom raising or lowering stops automatically.)
To cancel the boom angle limit function, press the boom angle restriction key again. The corresponding boom angle restriction indicator lamp will go off.
Upper boom angle restriction indicator lamp
Lower boom angle restriction indicator lamp
Lower boom angle restriction key
Upper boom angle restriction key
IW301-0134E05
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
Lifting Height Limit
Move the boom to the desired height, and press the lifting height restriction key. The lifting height restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the height limit has been registered in the memory. When the boom is moved back to a height within the set limit, the lifting height restriction indicator lamp stops flashing and stays lit and the buzzer stops. Thereafter, the lifting height restriction indicator lamp flashes and the buzzer sounds continuously whenever the height limit previously registered is reached. (Boom raising and extending stop automatically.)
To cancel the height limit function, press the lifting height restriction key again. The lifting height restriction indicator lamp will go off.
Swing Limit
Swing the boom to the desired position, and press a swing restriction key. The corresponding swing restriction indicator will flash and the buzzer will sound continuously, indicating that the swing angle limit has been registered in the memory. When the boom is swung back to an angle within the set limit, the swing restriction lamp stops flashing and stays lit and the buzzer stops. Thereafter, the swing restriction indicator lamp will flash and the buzzer will sound whenever the limit previously registered is reached. (Boom swinging stops automatically.)
To cancel the restriction function, press the corresponding swing restriction key again. The corresponding swing restriction indicator lamp will go off.
[NOTICE]
When registering a swing angle limit, register both the right and left swing limits, one-side registering is dangerous because an automatic stop is not made when the boom approaches the limit position from the opposite direction.
°
Lifting height restriction indicator lamp
Lifting height restriction key
While the swing stop cancel switch is set to OFF, the automatic stop does not work even if the boom is swung to the limit. In this case, the corresponding swing restriction indicator lamp flashes, a message appears and the AML buzzer beeps for 3 seconds. Take care when swinging the boom.
IW301-0131E72
°
Left swing restriction indicator lamp
Right swing restriction indicator lamp
Right swing restriction key
Left swing restriction key
IW301-0131E73
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
Load Radius Limit
Move the boom to the desired load radius, and press the load radius restriction key. The load radius restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the load radius limit has been registered in the memory. When the boom is moved back toward the non-critical side, the load radius restriction indicator lamp stops flashing, and stays lit and the buzzer stops.
The load radius restriction indicator lamp flashes and the buzzer sounds continuously whenever the limit previously registered is reached. (Boom extending and lowering stop automatically.)
To cancel the load radius limit function, press the load radius restriction key again. The corresponding load radius restriction indicator lamp will go off. IW301-0131E74
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
Display of Working Range Limit Values
Press the register key while working range limits have been registered. While the key is being pressed, the registered working range limit values are displayed. On the moment display will be displayed a message "Working range".
[NOTICE]
This display is not made during a preoperational check of the AML and when a working state is being registered. When working range limits are not registered, the message " " will be displayed.
Upper boom angle limit values
Functions of and How to Use User Mode ( GR-450-1/GR-500-1 )
Display Alteration
Displays on the moment display and the display panel 1 can be altered, as shown below in the figures, by pressing the display alteration key. The indicative symbols are displayed, too. Moment
IW301-0131E76
Display Panel 1
[NOTICE]
Displays on the actual load display and the rated load display do not alter even when the display alteration key is pressed.
IW301-0134E07
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Functions of and How to Use User Mode (TR-300-4/GR-300-1)
Mode Structure
The AML device has three modes and AML functions are allotted for these models.
2. Maintenance Mode:
Used to make functional checks of AML. See the “ADJUSTMENT AND MAINTENANCE” section.
3. Adjustment Mode:
Used to make detector adjustment. See the “ADJUSTMENT AND MAINTENANCE” section.
1. User Mode:
Used to indicate moment ratio or to perform AML pre-opetational inspection (Normally used).
In normal use, turn ON the protect switch mounted on the adjustment window on the top of AML. AML will go to the user mode when the power turns on.
The abnormality display LED lights when the AML is in abnormal conditions (to indicate that the CPU is faulty).
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Configuration and Functions of the AML System
The AML system is a safety device provided to prevent overloading of the crane which may cause it to overturn or be damaged. The AML system has various kinds of functions, including the following typical functions. Based on the registered work conditions by operator selection and the signals from various sensors, the crane operations are controlled.
(1) Automatic stop function to prevent overloading
The AML calculates and compares the working and rated moment values and displays their ratio. When the working moment exceeds the rated moment (100% or more), failure message is shown, alarm buzzer sounds, and the crane operation toward the critical side stops.
(2) Automatic stop function by backward instability
When the boom is raised to 72° in an over-side area with on-rubber operation.
(3) Working range limit functions
When any working range limit is registered to the AML, the crane is controlled so that the crane work posture does not exceed this registered working range limit. When the crane reaches the registered limit, failure message is shown, alarm buzzer sounds, and the crane operation stops.
(4) Slow stop function
In the following cases, the boom elevation speed gradually decreases to stop before the boom reaches the stoppage position.
• When the automatic stop is caused by overloading (Boom lowering will stop).
• When the automatic stop is caused by backward instability during on-rubber operation (Boom raising will stop).
• When the elevating cylinder reaches its stroke end (Boom raising/lowering will stop).
• When the automatic stop is caused by working range limit function (Boom raising/lowering will stop).
The situation of automatic stop due to automatic stop function and working range limit function is as listed below, depending on the working condition.
On-outrigger operationOn-rubber operation
Hoisting up Boom lowering Boom extension Automatic stop by overloading
Swing × Stop by backward instabilityBoom raising –Stop at stroke end
Boom raising/lowering
Boom raising/lowering
Boom extension Stop by working range restriction
Swing ×
: Slow stop : Stop ×: Not stop –: Not relevant
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
AML System Configuration
Boom length signal
Boom angle signalMoment ratio signalOver-front area signalCrane control position signal
Outrigger extension width detector
Swing angle signal
Outrigger status
Lift status
Working range limits
Number of parts of line status
AML (load moment indicator) unit
External warning lamps Display panel
Stop output when:
Moment ratio exceeds 100%
Two-blocking occurs
Moment exceeding limit for boom with jib mounted
AML system error occurs
Backward stability control activated
Alarm buzzer
Boom extension halted
Boom lowering halted Hoisting up halted
Swing halted in critical side (Except for on-rubber operation)
Boom raising halted
Working range limit signal output
Upper boom angle restricted Lower boom angle restricted
Swing restricted (Except for on-rubber operation)
Lifting height restricted Load radius restricted
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Automatic Stop Functions
•Moment ratio exceeds 100% (*1)
•Two-blocking
•AML system error
•Hoisting up
•Boom lowering
•Boom extension
•Swing toward critical side Upper
•Boom lift
•Jib lift
Alarm Functions
Condition
A control is moved toward critical side (hoist up, boom lowering or boom extension) while two-brocking condition exists.
Alarm
Moment display: Displays [Warning:0024].
•Backward
•Swing
(*1): For the boom lift with the jib mounted, automatic stop will work when the moment ratio exceeds the value listed below, according to the outrigger extension width: Outrigger
IW301-0131E54
(*2): Automatic stop will work when the boom is raised to 72° in an over-side area with on-rubber operation.
Buzzer: Sounds continuously. Anti-twoblock function is deactivated while two-brocking codition exists.
Moment display: Displays [Warning:0015].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously. Moment ratio exceeds 90%.Moment display: Yellow segment is lit.
External warning lamps: Orange lamp is lit.
Buzzer: Sounds intermittently. A control is moved toward critical side While moment ratio exceeds 100%.
Moment display: Displays [Warning:0023].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously. AML system errer Moment display: Displays failure messages.
AML Buzzer: Sounds 3 seconds.
Working range limit function activated.
Moment display: Displays failure messages.
Associated restriction indicator lamp flashes.
Buzzer: Sounds continuously.
AML Buzzer: Sounds 3 seconds.
Operated to critical side when backward stability control activated.
Moment display: Displays [Warning:0025].
AML Buzzer: Sounds 3 seconds.
Slow stop control Moment display: Displays [Warning:0081] or [0082].
AML Buzzer: Sounds 3 seconds.
Boom lift with jib mounted on boom (*3)
(1) Moment ratio is between 84% and 94%.
(2) Moment ratio is between 83% and 93%.
(3) Moment ratio is between 81% and 91%.
(1) Moment ratio exceeds 94%.
(2) Moment ratio exceeds 93%.
(3) Moment ratio exceeds 91%.
Moment display: Corresponding segment is lit. External warning lamps : Orange lamp is lit.
Buzzer: Sounds intermittently.
Moment display: Displays [Warning:0088].
External warning lamps : Red lamp is lit.
Buzzer: Sounds continuously.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
(*3)
(1) is applicable when the outriggers are extended to maximum (20’8-1/16” [6.3m]).
(2) is applicable when the outriggers are extended to middle (19’4-1/4” [5.9m]).
(3) is applicable when the outriggers are extended to middle (16’4-7/8” [5.0m]).
[NOTICE]
In the above table, "Buzzer" is the device outside the AML unit, outputting buzzing sound.
"AML buzzer" is the device inside the AML unit, outputting beeping sound.
The AML buzzer sounds for 3 seconds every time a message appears. It outputs long sounds when slow stop control is activated and outputs short sounds when other controls are activated.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Names and Functions of AML Main Unit Parts
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
1. Moment ratio mark
The moment ratios on the bargraph are color coded as follows: safe (green), notice (yellow) and limit (red).
2. Moment display
Normally displays a moment ratio on a bargraph. Displays the main-circuit pressure when the display alteration key is pressed. Also displays error messages when an operational or system error occurs.
3. Scroll-up key
Used to see the previous lines of message displayed on the moment display.
4. Scroll-down key
Used to see the next lines of message displayed on the moment display.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1) Display Panel
1. Jib angle display
When jib lift is selected, the jib offset angle is displayed.
When the number of parts of line select key or the display alteration key is pressed, the number of parts of line is displayed. Also, when an upper boom angle limit has been registered, the registered upper boom angle limit value is displayed while the register key is pressed.
2. Number of parts of line symbol
This symbol indicates that the jib angle display [1] is showing the number of parts of line.
3. Boom length symbol
This symbol indicates that the boom length display [13] is showing the boom length.
5. Jib angle symbol
This symbol indicates that the jib angle display [1] is showing the jib offset angle.
6. Jib lift symbol
This symbol indicates that the jib lift is selected. Its also indicates the condition of the jib.
7. Actual load display
Displays the actual load.
8. Rated lifting capacity display
Displays the rated lifting capacity.
9. Load radius limit symbol
This symbol indicates that the load radius display [11] is showing the registered load radius limit value.
The load radius symbol [10] is also displayed at the same time.
10. Load radius symbol
This symbol indicates that the load radius display [11] is showing the load radius.
11. Load radius display
Normally displays the crane's load radius. Displays the boom swing angle while the display alteration key is pressed.
When a load radius limit has been registered, the registered load radius limit value is displayed while the register key is pressed.
13. Boom length display
Normally displays the boom length. Displays the lifting height while the display alteration key is pressed.
When a lifting height limit has been registered, the registered lifting height limit value is displayed while the register key is pressed.
14. Lifting height symbol
This symbol indicates the boom length display [13] is showing the lifting height.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
15. Lifting height limit symbol
This symbol indicates that the boom length display [13] is showing the registered lifting height limit value.
The lifting height symbol [14] is also displayed at the same time.
16. Upper boom angle limit symbol
This symbol indicates that the jib angle display [1] is showing the registered upper boom angle limit value.
17. Boom angle symbol
This symbol indicates that the boom angle display [19] is showing the boom angle.
18. Lower boom angle limit symbol
This symbol indicates that the boom angle display [19] is showing the registered lower boom angle limit value.
19. Boom angle display
Normally displays the boom angle. Displays the moment ratio when the display alteration key is pressed.
When a lower boom angle limit has been registered, the registered lower boom angle limit value is displayed while the register key is pressed.
20. Boom lift symbol
This symbol indicates that the boom lift is selected.
21. Single-top lift symbol
This symbol indicates that the single-top lift is selected.
1. Increase key Used to increase the selected value.
2. Decrease key Used to decrease the selected value.
3. Outrigger mode select key Used to select the outrigger status.
4. Lift mode select key Used to select the lift status.
5. Check key
Used to check the AML system functions.
6. Register key
Used to register a selected status.
7. Display alteration key
Used to alter the displays on display panel 1.
8. Load radius restriction key
Used to activate and release the load radius limiting function.
9. Load radius restriction indicator lamp Lights up when the load radius limiting function is activated.
10.Lower boom angle restriction key
Used to activate and release the lowermost boom angle limiting function.
11. Lower boom angle restriction indicator lamp Lights up when the lowermost boom angle limiting function is activated.
12.Upper boom angle restriction key
Used to activate and release the uppermost boom angle limiting function.
13.Upper boom angle restriction indicator lamp Lights up when the uppermost boom angle limiting function is activated.
14.Lifting height restriction key
Used to activate and release the lifting height limiting function.
15.Lifting height restriction indicator lamp Lights up when lifting height limiting function is activated.
16.Right swing restriction key
Used to activate and release the right swing limiting function.
17.Right swing restriction indicator lamp Lights up when the right swing limiting function is activated.
18.Left swing restriction key
Used to activate and release the left swing limiting function.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
19.Left swing restriction indicator lamp Lights up when the left swing limiting function is activated.
20.Number of parts of line select key Used to select the a number of parts of line.
1. Over-front position symbol
Indicates that the boom is swung into the over-front position.
2. Outrigger state symbol
Indicates the way the outriggers are extended. Flashes while an outrigger state is in process of being registered, and lights up when the registration is completed.
3. "on-rubber" (Outrigger-not-in-use) state symbol
Indicates the on-rubber operation (non-outrigger operation) is selected.
Lights up when the stationary on-rubber operation is selected, and flashes when the traveling on-rubber (creep) operation is selected.
4. Suspension (spring) lock state symbol Lights up the suspensions (spring) are locked up.
5. Boom position indicator Indicates the boom position in 10° increments.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Selecting Operational Status
Should the operational status be incorrectly registered, the crane may overturn or be damaged, leading to a serious accident. Prior to every operation, check that the registered status corresponds to the actual status of the crane.
Selecting Outrigger Status
[NOTICE]
The "on-rubber stationary" status is the default status and is automatically selected when the power supply is turned on (the PTO switch is placed in the "ON" position).
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Register the outrigger status using the outrigger mode select key and the register key.
(1) On-outrigger operation
When the outrigger mode select key is pressed, the outrigger state symbols flash in accordance with the status that the AML detects. After making sure that the display conforms to the actual outrigger conditions, press the register key. The outrigger state symbols will change from flashing to continuous lighting, and the moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the state has been registered.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
(2) On-rubber operation
Press the outrigger mode select key repeatedly until the display conforms to the actual condition (on-rubber stationary operation or on-rubber creep operation). Then press the register key. The moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the on-rubber state has been registered.
[NOTICE]
The outrigger status automatically changes to on-rubber creep status when an operation is made for stowing the outrigger after the registration of the outrigger status. Be sure to again register the outrigger status, when necessary.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Selecting Lift Status
[NOTICE]
The boom lift status is the default status and is automatically selected (the boom lift symbol lights up) when the power supply is turned on (the PTO switch is placed in the ON position).
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Register the lift status using the lift mode select key and the register key.
(When the jib set status is selected, the jib lift symbol will remain flashing.)
Select the boom lift status when lifting a load on the boom with the jib mounted.
Select the jib lift status when lifting a single load using both the boom and jib.
Each time the lift mode select key is pressed, the mode changes in numerical sequence, from (1) to (9). The display returns to (1) if you press the switch while the status (9) is displayed on the screen. Select the status that corresponds to the actual lift status.
[NOTICE]
After selecting the intended lift status, press the register key to register the status. The corresponding lift symbols will change from flashing to lighting and the moment display, rated lifting capacity display and actual load display will return to normal display conditions, meaning that the state has been registered.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Selecting Number of Parts of line
[NOTICE]
If the registered number of parts of line is smaller than the standard number, a maximum allowable lifting load is limited, depending on the registered number. If zero(0) is registered, however, the AML performs as if the standard number were registered. Similarly, the AML works on the basis of the standard number of parts of line if the registered number is larger than the standard number, or other than the values specified for your model.
When the power supply is turned on (i.e. PTO switch ON), the standard number of parts of line corresponding to the work condition is selected.
Register the number of parts of line by use of the number of parts of line select key and the register key, as follows:
1. Press the number of parts of line select key. The number of parts of line symbol will flash, and the number of parts of line will be shown on the jib angle display in a flashing mode.
2. Press the increase or the decrease key to set the number to the actual number of parts of line.
[NOTICE]
When the increase or the decrease key is pressed, a numeral showing the number of parts of line changes from flashing to lighting, and increases or decreases.
When the increase or the decrease key is kept pressed, the number of parts of line continuously increases or decreases.
3. Once the intended number of parts of line is set, press the register key to register the number. Then, the number of parts of line symbol will be turned off and the jib angle display will return to a normal status.
[NOTICE]
The number of parts of line can be confirmed by pressing the display alteration key.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Selecting Jib Mounted Condition
If the jib mounted/dismounted state is set improperly, the AML does not function accurately. The crane operation in this condition could create hazard.
The jib can be dismounted from the crane body when it is not used. The reduced mass of the crane body after jib removal will influence accuracy of the AML. Use this switch to set the jib mounted /dismounted state to the AML.
[NOTICE]
The key can be inserted in and removed from either “REMOVED” or “EQUIPPED” position.
(1) “REMOVED” Select this position when the jib is dismounted. The jib removed indicator lamp will light up.
(2) “EQUIPPED” Select this position when the jib is mounted. The jib removed indicator lamp will go off.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
AML Pre-operational Inspection
WARNING
Operating the crane with a malfunctioning AML could cause the crane to overturn or be damaged. Be sure to perform the pre-operational inspection on the AML system and start the crane only after ensuring that the system is operating properly.
Before starting operation, check that the AML works in good condition, as follows:
1. Press the check key and make sure that the AML is in the following conditions:
• Moment display……All segments light up.
• Display panel (1 and 2)
………………………All segments light up.
• Working range restriction indicator lamp ………………………………All six lamps light up.
• Alarm buzzer………………Sounds continuously.
• Movement toward critical sides ………………………………Automatically halted
2. Press either the register key, display alteration key or check key to return the display to the normal condition.
3. Make sure that the display on the display panels conforms to the actual crane conditions.
(1) Boom length
(2) Boom angle
(3) Jib angle……shown while jib lift is selected
(4) Actual load…With no load on hook, make sure that an approximate mass of the hook block is shown
[NOTICE]
The actual load is not shown correctly if the lift status is not registered correctly.
(5) Outrigger state symbol
(6) Boom position indicator
(7) Over-front position symbol ……shown while the boom is in over-front area
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
How to Use the Working Range Limit Function
[NOTICE]
If the working range limit is registered very close to an obstacle, there is a risk of the crane colliding with the obstacle, depending on the operational status and the manner in which the load is handled. When registering a range limit, allow a sufficient clearance to avoid collision.
The working range restricting function makes the boom automatically stop at the previously registered boom angles (upper and lower), lifting height, load radius and swing angle, The function is useful for handling a load in a confined place because it defines the area in which the boom can operate.
[NOTICE]
Turning the power off (PTO switch: OFF) automatically erases all the previous settings stored in memory after approximately 2 hours. To resume the operation more than 2 hours after the power has been last turned off, enter the settings all over again.
Boom Angle Limit
Raise or lower the boom to the desired angle, and press the upper or lower boom angle restriction key. The corresponding restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the boom angle limit has been registered in the memory. When the boom is moved back to an angle within the set limit, the restriction indicator lamp stops flashing and stays lit and the buzzer stops. Thereafter, the upper or lower boom angle restriction indicator lamp flashes and the buzzer sounds continuously whenever the upper or lower limit previously registered is reached. (Boom raising or lowering stops automatically.)
To cancel the boom angle limit function, press the boom angle restriction key again. The corresponding boom angle restriction indicator lamp will go off.
Upper boom angle restriction indicator lamp
Lower boom angle restriction indicator lamp
Lower boom angle restriction key
Upper boom angle restriction key
IW301-0134E05
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Lifting Height Limit
Move the boom to the desired height, and press the lifting height restriction key. The lifting height restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the height limit has been registered in the memory. When the boom is moved back to a height within the set limit, the lifting height restriction indicator lamp stops flashing and stays lit and the buzzer stops. Thereafter, the lifting height restriction indicator lamp flashes and the buzzer sounds continuously whenever the height limit previously registered is reached. (Boom raising and extending stop automatically.)
To cancel the height limit function, press the lifting height restriction key again. The lifting height restriction indicator lamp will go off.
Swing Limit
Swing the boom to the desired position, and press a swing restriction key. The corresponding swing restriction indicator will flash and the buzzer will sound continuously, indicating that the swing angle limit has been registered in the memory. When the boom is swung back to an angle within the set limit, the swing restriction lamp stops flashing and stays lit and the buzzer stops. Thereafter, the swing restriction indicator lamp will flash and the buzzer will sound whenever the limit previously registered is reached. (Boom swinging stops automatically.)
To cancel the restriction function, press the corresponding swing restriction key again. The corresponding swing restriction indicator lamp will go off.
[NOTICE]
When registering a swing angle limit, register both the right and left swing limits, one-side registering is dangerous because an automatic stop is not made when the boom approaches the limit position from the opposite direction.
°
Lifting height restriction indicator lamp
Lifting height restriction key
While the swing stop cancel switch is set to OFF, the automatic stop does not work even if the boom is swung to the limit. In this case, the corresponding swing restriction indicator lamp flashes, a message appears and the AML buzzer beeps for 3 seconds. Take care when swinging the boom.
IW301-0131E72
°
Left swing restriction indicator lamp
Right swing restriction indicator lamp
Right swing restriction key
Left swing restriction key
IW301-0131E73
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Load Radius Limit
Move the boom to the desired load radius, and press the load radius restriction key. The load radius restriction indicator lamp will flash and the buzzer will sound continuously, indicating that the load radius limit has been registered in the memory. When the boom is moved back toward the non-critical side, the load radius restriction indicator lamp stops flashing, and stays lit and the buzzer stops.
The load radius restriction indicator lamp flashes and the buzzer sounds continuously whenever the limit previously registered is reached. (Boom extending and lowering stop automatically.)
To cancel the load radius limit function, press the load radius restriction key again. The corresponding load radius restriction indicator lamp will go off.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Display of Working Range Limit Values
Press the register key while working range limits have been registered. While the key is being pressed, the registered working range limit values are displayed. On the moment display will be displayed a message "Working range".
[NOTICE]
This display is not made during a preoperational check of the AML and when a working state is being registered. When working range limits are not registered, the message " " will be displayed.
Functions of and How to Use User Mode (TR- 300-4/GR-300-1)
Display Alteration
Displays on the moment display and the display panel 1 can be altered, as shown below in the figures, by pressing the display alteration key. The indicative symbols are displayed, too.
Moment
IW301-0131E76
Display Panel 1
[NOTICE]
Displays on the actual load display and the rated load display do not alter even when the display alteration key is pressed.
IW301-0134E07
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
Functions of and How to Use User Mode (TR-150-4/GR-150-1)
Mode Structure
The AML device has three modes and AML functions are allotted for these models.
2. Maintenance Mode:
Used to make functional checks of AML. See the “ADJUSTMENT AND MAINTENANCE” section.
3. Adjustment Mode:
Used to make detector adjustment. See the “ADJUSTMENT AND MAINTENANCE” section.
1. User Mode:
Used to indicate moment ratio or to perform AML pre-opetational inspection (Normally used).
In normal use, turn ON the protect switch mounted on the adjustment window on the top of AML. AML will go to the user mode when the power turns on.
The abnormality display LED lights when the AML is in abnormal conditions (to indicate that the CPU is faulty).
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
Configuration and Functions of the AML System
The AML system is a safety device provided to prevent overloading of the crane which may cause it to overturn or be damaged. The AML system has various kinds of functions, including the following typical functions. Based on the registered work conditions by operator selection and the signals from various sensors, the crane operations are controlled.
(1) Automatic stop function to prevent overloading
The AML calculates and compares the working and rated moment values and displays their ratio. When the working moment exceeds the rated moment (100% or more), failure message is shown, alarm buzzer sounds, and the crane operation toward the critical side stops.
(2) Working range limit functions
When any working range limit is registered to the AML, the crane is controlled so that the crane work posture does not exceed this registered working range limit. When the crane reaches the registered limit, failure message is shown, alarm buzzer sounds, and the crane operation stops.
(3) Slow stop function
In the following cases, the boom elevation speed gradually decreases to stop before the boom reaches the stoppage position.
• When the automatic stop is caused by overloading (Boom lowering will stop).
• When the elevating cylinder reaches its stroke end (Boom raising/lowering will stop).
• When the automatic stop is caused by working range limit function (Boom raising/lowering will stop).
The situation of automatic stop due to automatic stop function and working range limit function is as listed below, depending on the working condition. On-outrigger operationOn-rubber operation
Automatic stop by overloading
Stop at stroke end
Stop by working range restriction
Hoisting up
Boom lowering
Boom extension
Swing ×
Boom raising/lowering
Boom raising/lowering
Boom extension
Swing ×
: Slow stop : Stop ×: Not stop –: Not relevant
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
AML System Configuration
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
Automatic Stop Functions
•Moment exceeds 100% (*1)
•Two-blocking
•AML
Alarm Functions
Condition
A control is moved toward critical side (hoist up, boom lowering or boom extension) while two-brocking condition exists.
Anti-twoblock function is deactivated while two-brocking codition exists.
Alarm
Moment display: Displays [Warning:0024].
Buzzer: Sounds continuously.
Moment display: Displays [Warning:0015].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously. Moment ratio exceeds 90%.Moment display: Yellow segment is lit.
External warning lamps: Orange lamp is lit.
(*1): For the boom lift with the jib mounted, automatic stop will work when the moment exceeds 90%.
IW301-0131E54
Buzzer: Sounds intermittently. A control is moved toward critical side While moment ratio exceeds 100%.
Moment display: Displays [Warning:0023].
External warning lamps: Red lamp is lit.
Buzzer: Sounds continuously. AML system errer Moment display: Displays failure messages.
AML Buzzer: Sounds 3 seconds.
Working range limit function activated. Moment display: Displays failure messages.
Associated restriction indicator lamp flashes.
Buzzer: Sounds continuously.
AML Buzzer: Sounds 3 seconds.
Slow stop control Moment display: Displays [Warning:0081] or [0082].
AML Buzzer: Sounds 3 seconds.
Boom lift with jib mounted on boom Moment ratio is between 80% and 90%.
Moment display: Corresponding segment is lit. External warning lamps : Orange lamp is lit.
Buzzer: Sounds intermittently.
Moment ratio exceeds 90%. Moment display: Displays [Warning:0088].
External warning lamps : Red lamp is lit.
Buzzer: Sounds continuously.
In the above table, "Buzzer" is the device outside the AML unit, outputting buzzing sound.
"AML buzzer" is the device inside the AML unit, outputting beeping sound.
The AML buzzer sounds for 3 seconds every time a message appears. It outputs long sounds when slow stop control is activated and outputs short sounds when other controls are activated.
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
Names and Functions of AML Main Unit Parts
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
1. Moment ratio mark
The moment ratios on the bargraph are color coded as follows: safe (green), notice (yellow) and limit (red).
2. Moment display
Normally displays a moment ratio on a bargraph. Displays the main-circuit pressure when the display alteration key is pressed. Also displays error messages when an operational or system error occurs.
3. Scroll-up key
Used to see the previous lines of message displayed on the moment display.
4. Scroll-down key
Used to see the next lines of message displayed on the moment display.
Functions of and How to Use User Mode (TR- 150-4/GR-150-1) Display Panel
1. Jib angle display
When jib lift is selected, the jib offset angle is displayed.
When the number of parts of line select key or the display alteration key is pressed, the number of parts of line is displayed. Also, when an upper boom angle limit has been registered, the registered upper boom angle limit value is displayed while the register key is pressed.
2. Number of parts of line symbol
This symbol indicates that the jib angle display [1] is showing the number of parts of line.
3. Boom length symbol
This symbol indicates that the boom length display [13] is showing the boom length.
5. Jib angle symbol
This symbol indicates that the jib angle display [1] is showing the jib offset angle.
6. Jib lift symbol
This symbol indicates that the jib lift is selected. Its also indicates the condition of the jib.
7. Actual load display
Displays the actual load.
8. Rated lifting capacity display
Displays the rated lifting capacity.
9. Load radius limit symbol
This symbol indicates that the load radius display [11] is showing the registered load radius limit value.
The load radius symbol [10] is also displayed at the same time.
10. Load radius symbol
This symbol indicates that the load radius display [11] is showing the load radius.
11. Load radius display
Normally displays the crane's load radius. Displays the boom swing angle while the display alteration key is pressed.
When a load radius limit has been registered, the registered load radius limit value is displayed while the register key is pressed.
13. Boom length display
Normally displays the boom length. Displays the lifting height while the display alteration key is pressed.
When a lifting height limit has been registered, the registered lifting height limit value is displayed while the register key is pressed.
14. Lifting height symbol
This symbol indicates the boom length display [13] is showing the lifting height.
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
15. Lifting height limit symbol
This symbol indicates that the boom length display [13] is showing the registered lifting height limit value.
The lifting height symbol [14] is also displayed at the same time.
16. Upper boom angle limit symbol
This symbol indicates that the jib angle display [1] is showing the registered upper boom angle limit value.
17. Boom angle symbol
This symbol indicates that the boom angle display [19] is showing the boom angle.
18. Lower boom angle limit symbol
This symbol indicates that the boom angle display [19] is showing the registered lower boom angle limit value.
19. Boom angle display
Normally displays the boom angle. Displays the moment ratio when the display alteration key is pressed.
When a lower boom angle limit has been registered, the registered lower boom angle limit value is displayed while the register key is pressed.
20. Boom lift symbol
This symbol indicates that the boom lift is selected.
21. Single-top lift symbol
This symbol indicates that the single-top lift is selected.
1. Increase key Used to increase the selected value.
2. Decrease key Used to decrease the selected value.
3. Outrigger mode select key Used to select the outrigger status.
4. Lift mode select key Used to select the lift status.
5. Check key
Used to check the AML system functions.
6. Register key
Used to register a selected status.
7. Display alteration key
Used to alter the displays on display panel 1.
8. Load radius restriction key
Used to activate and release the load radius limiting function.
9. Load radius restriction indicator lamp Lights up when the load radius limiting function is activated.
10.Lower boom angle restriction key
Used to activate and release the lowermost boom angle limiting function.
11. Lower boom angle restriction indicator lamp Lights up when the lowermost boom angle limiting function is activated.
12.Upper boom angle restriction key
Used to activate and release the uppermost boom angle limiting function.
13.Upper boom angle restriction indicator lamp Lights up when the uppermost boom angle limiting function is activated.
14.Lifting height restriction key
Used to activate and release the lifting height limiting function.
15.Lifting height restriction indicator lamp Lights up when lifting height limiting function is activated.
16.Right swing restriction key
Used to activate and release the right swing limiting function.
17.Right swing restriction indicator lamp Lights up when the right swing limiting function is activated.
18.Left swing restriction key
Used to activate and release the left swing limiting function.
Functions of and How to Use User Mode (TR- 150-4/GR-150-1)
19.Left swing restriction indicator lamp Lights up when the left swing limiting function is activated.
20.Number of parts of line select key Used to select the a number of parts of line.
Display Panel 2
1. Over-front position symbol
Indicates that the boom is swung into the over-front position.
2. Outrigger state symbol
Indicates the way the outriggers are extended. Flashes while an outrigger state is in process of being registered, and lights up when the registration is completed.
3. "on-rubber" (Outrigger-not-in-use) state symbol
Indicates the on-rubber operation (non-outrigger operation) is selected.
Lights up when the stationary on-rubber operation is selected, and flashes when the traveling on-rubber (creep) operation is selected.
4. Suspension (spring) lock state symbol Lights up the suspensions (spring) are locked up.
5. Boom position indicator Indicates the boom position in 10° increments.
