SECTION 7 - DIAGNOSTIC TROUBLE CODES
7-24
3121788
9957 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 68: VCL Run Time Error
Set:
Runtime VCL code error condition
Effect:
ShutdownMotor,ShutdownMainContac-
tor,ShutdownEMBrake, ShutdownThrottle, Shut-
down Interlock, Shutdown Drivers1-4,
ShutdownPD, FullBrake, ShutdownPump
Possible Cause:
•
VCL code encountered a runtime VCL error
•
See Monitor menu>>Controller. This error
can then be compared to the runtime VCL
module ID and error code definitions found in
the specific OS system information file.
X
9958 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 91: VCL/OS Mismatch
Set:
VCL and OS software do not match; when
KSI cycles, a check is made to verify that they
match and a fault isssued when they do not.
Effect:
ShutdownMotor,ShutdownMainContac-
tor,ShutdownEMBrake, ShutdownThrottle, Shut-
down Interlock, Shutdown Drivers1-4,
ShutdownPD, FullBrake, ShutdownPump
Possible Cause:
•
The VCL software in the controller does not
match the OS software in the controller.
X
9959 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 44: Pump Throttle Wiper Low
Set:
Pot2 wiper voltage is lower than the low
fault threshold (can be changed with the VCL
funciton Setup_Pot_Faults())
Effect:
ShutdownPump (if
Lift_Switch_Only_Enable=Off), ShutdownPD
(If Lower_Switch_Only_Enable=Off)
Possible Cause:
•
See Monitor Menu>> Inputs: Pot2 Raw
•
Pot2 wiper voltage too low
X
997
POWER MODULE FAILURE -
CHECK POWER CIRCUITS OR
MOSFET SHORT CIRCUIT
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 95: Pump Overcurrent Fault
Set:
Pump current exceeded the current mea-
surement limit.
Effect:
ShutdownPump
Possible Cause:
•
External short of the pump motor
•
Controller defective
X
998
EEPROM FAILURE – CHECK ALL
SETTINGS
None
9_9
· Enter SafeMode
• LiftDownState = PREVENTED
The control system detected an EEPROM failure.
Personalities and Machine Setup settings may be
reset to default values. Check / correct all set-
tings and re-cycle power to clear difficulty.
•
The Ground Module’s EEPROM checksum indi-
cates corruption. Retained until EEPROM set-
tings are corrected and power is re-cycled.
X
Table 7-1. Diagnostic Trouble Codes (DTC)
DTC
Help Message
Alarm
Flash
Code
Action
Trigger
3246R
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