Cause : IGBT overtemperature comes when estimated drive IGBT temperature is excessive due to high ambient temperature, blocked airflow or internal drive fault.

The fault code 4210 in your ABB ACS560 drive indicates an overtemperature condition within the drive itself. This signifies that the internal components of the drive are exceeding their safe operating temperature.

1. Check ambient conditions.
2. Check air flow and fan operation.
3. Check heatsink fins for dust pick-up.
4. Check motor power against drive power.