Cause : Inrush current limit circuit fault comes when the inverter trips when the resistor of the inrush current limit circuit is overheated. The inrush current limit circuit failure.

1. Check that frequent power ON/OFF is not repeated.
2. Check that no meltdown is found in the primary side fuse (5A) in the power supply circuit of the
   inrush current suppression circuit contactor (FR-F740-132K or more) or no fault is found in the power supply circuit of the contactor.
3. Check that the power supply circuit of inrush current limit circuit contactor is not damaged.