Table of Contents
Troubleshooting and Fault Information
6-6
Table 6.B 1305 Fault Descriptions
Fault Name & Number
Fault Description
Overcurrent FauIt
Overcurrent is detected in overcurrent hardware trip circuit.
F12
Overload Fault
Internal electronic overload trip.
F7
Overspeed Fault
Internal error.
F25
Overtemp Fault
Temperature sensor detects excessive heat.
F8
Overvolt Fault
DC bus voltage exceeded maximum value.
F5
Phase U Fault
Phase U Fault
A phase to ground fault has been detected between the drive
A phase to ground fault has been detected between the drive
F38
and motor in this phase.
Phase V Fault
A phase to ground fault has been detected between the drive
F39
and motor in this phase.
Phase W Fault
A phase to ground fault has been detected between the drive
F40
and motor in this phase.
(continued)
Action to Take
Check for a short circuit at the drive output or excessive load
conditions at the motor.
An excessive motor load exists. It must be reduced such that
drive output current does not exceed the % of current set by the
[Overload Current] parameter. Reduce [Start Boost] if
applicable. Change [Cable Length] to "Long" if applicable.
Reset drive to factory defaults.
Check for blocked or dirty heat sink fins. Check for proper mount-
ing and spacing (See page 2-1). Check if the ambient tempera-
ture limit has been exceeded.
Monitor the AC line for high line voltage or transient conditions.
Bus overvoltage can also be caused by motor regeneration.
Extend the decel time or install dynamic brake option.
Check the wiring between the drive and motor. Check motor for
Check the wiring between the drive and motor. Check motor for
grounded phase.
Check the wiring between the drive and motor. Check motor for
grounded phase.
Check the wiring between the drive and motor. Check motor for
grounded phase.
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