Cause : Overcurrent comes when the Inverter output current exceeded the overcurrent detection level. (200% of rated current). A short-circuit or ground fault occurred at the Inverter output. (A short or ground fault can be caused by motor burn damage, worn insulation, or a damaged cable.)

1. The load is too large or the acceleration/deceleration time is too short.
   • A special-purpose motor or motor with a capacity too large for the Inverter is being used.
   • A magnetic contactor was switched at the Inverter output.
2. There is a break in the PG wiring.
3. The PG is wired incorrectly.
4. Power isn't being supplied to the PG.
5. A short-circuit between +V, -V, and AC terminals occurred.
   • Overload in the control circuit terminal.
6. Make sure that incorrect wiring has not been done.
   • Check the resistance and wiring for the frequency setting potentiometer, etc.