FA174499
28 September 2021
Issue:ATV212: EF2 Fault
Product line:Altivar ATV212
Environment:All models, all serial numbers
Cause:Ground Fault on the output of the drive.
Resolution:EF2= Ground Fault
Troubleshooting tips
- Check the motor ground connections. Make sure the ground is going to the chassis of the drive.
- Remove the motor leads from the drive and Megger with a 1KV Megger to see if there is a short to ground in the motor windings.
Reference the ATV212 programming manual S1A53838 (attached).
