InverterFR-F800Verification pending — cross-check with the official manual
FR-F800 E.ILF — Input phase loss
Trip — immediate stop
CAUSE
Why does it occur?
- When Pr. 872 "Input phase loss protection selection" is enabled ("1") and one of the three-phase power input is lost, the inverter output is shut off. This protective function is not available when Pr. 872 is set to the initial value (Pr. 872 = "0"). (Refer to page 5-1
- Check for a break in the cable for the three-phase power supply input.
REMEDY · Step by step
How to fix it?
Wire the cables properly. Repair a break portion in the cable.
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.
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