F0033 fault in WEG CFW500 Drive indicates a Self-tuning Fault. This means the inverter failed to accurately measure the motor’s stator resistance during the automatic setup procedure.
Cause:
- Stator resistance value in parameter P0409 does not comply with the inverter power rating.
- Motor connection error.
- Connected motor power rating is too low or too high in relation to the inverter capacity.
Remedy:
Turn off the power supply and inspect all connections at the motor terminal box. Verify if stator resistance parameter P0409 and motor power ratings are configured correctly.
