Cause : Load short circuit comes when the drive has detected a short circuit on the output side, potentially damaging the drive if not addressed promptly. This fault caused by a short circuit within the motor windings.

"F021" fault in Schneider ATV310 drive indicate "Load short circuit" condition. This means the drive has detected a short circuit on the output side, likely between the drive and the motor.

Follow these steps to correct the fault:

1. Check Motor Windings: Use a motor insulation resistance tester (megger) to check the motor windings for short circuits.
2. Inspect Motor Cable: Examine the motor cable for any visible damage, cuts, or signs of overheating.
3. Verify External Load: Ensure there are no short circuits in the equipment connected to the motor.