ABB ACS800 Drive
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Jun 19, 2024 7:49 am
Cause : MOTOR PHASE FAULT comes when one of motor phases is lost due to fault in motor, motor cable, thermal relay (if used) or internal fault.
The code FF56 in your ABB ACS800 drive indicates a fault related to a missing motor phase. This means the drive is not detecting a signal from one of the three phases that power your motor.
- Check motor and motor cable.
- Check thermal relay (if used).
- Check Fault Function parameters.
- Disable this protection.
