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Issue: ATV61 or ATV71 AC drive display motor short circuit or IGBT short circuit fault codes when powered by a generator
Product Line: Altivar ATV61 and ATV71
Environment: All ATV61 and ATV71's when powered with a generator
Cause: These are not true short circuit faults but are occurring as a result of power supply instability and high voltage during the transient state of initial generator power.
Resolution: Investigate and correct the instability and over voltage conditions during transient state of initial generator power.