Mitsubishi FR-A Series- FR-A800, FR-A770/A701, FR-A700, FR-A800-E, FR-A741 Drive
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Mar 30, 2024 7:48 am
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.
- Check that frequent power ON/OFF is not repeated.
- Check if the input side fuse (5A) in the power supply circuit of the inrush current limit circuit contactor (FR- A840-03250(110K) or higher) is blown.
- Check that the power supply circuit of inrush current limit circuit contactor is not damaged.
