Cause : Short-circuit in motor cable(s) or motor - comes when drive detect short-circuit in motor cable or motor and faulty IGBT module in drive. Follow these steps to correct fault :

1. Check motor and motor cable.
2. Check there are no power factor correction capacitors or surge absorbers in motor cable.
3. Check for an earth fault in motor or motor cables by measuring the insulation resistances of motor and motor cable.