Service manual

F238006 49
Section 4 Troubleshooting
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41 41 41
UV Short
Fault
Excessive current has been
detected between two
controller output terminals.
Check motor and external wiring to the
controller output terminals for shorted
condition.
43 43 43
VW Short
Fault
Excessive current has been
detected between two
controller output terminals.
Check motor and external wiring to the
controller output terminals for shorted
condition.
44
IPM Current
Fault
Internal power module
overcurrent limit exceeded.
Check for short circuit at the drive output
or excessive load conditions at the motor,
specifically cable capacitance to ground.
45
IPM
Overtemp
Fault
Internal power module
thermal limit exceeded.
Check for blocked or dirty heatsink fins.
Check ambient air. Check fan operation
or filter blockage.
57
Ground
Warning
A current path to ground in
excess of 2A has been
detected at one or more of
the drive output terminals.
Check motor and external wiring to drive
output terminals for a grounded
condition.
AC Drive Fault Codes and Troubleshooting Information (continued)
Bulletin
160
Bulletin
1305
Bulletin
1336
Fault Description Corrective Action/Remarks