Applicable Systems
Modicon M221
Modicon M241
Modicon M251
Modicon M340
Modicon M580
Altivar
Symptoms
Short circuit detected due to motor insulation breakdown.
Possible Causes
Motor winding insulation failure.
Troubleshooting Steps
Megger test motor. Replace or rewind motor.
How to Reset
Replace motor and reset
Source: Schneider ATV630 fault manual
Category: Electrical