Over current Abnormal increase in current

1. Check if motor power corresponds with the AC motor drive output power.
2. Check the wiring connections to U, V, W for possible short circuits.
3. Check the wiring connections between the AC motor drive and motor for possible short circuits, also to ground.
4. Check for loose contacts between AC motor drive and motor.
5. Increase the Acceleration Time.
6. Check for possible excessive loading conditions at the motor.
7. If there are still any abnormal conditions when operating the AC motor drive after a short- circuit is removed and the other points above are checked,

Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.