InverterFR-A800Verification pending — cross-check with the official manual
FR-A800 EV — 24 V external power supply operation
Alarm — operational, inspection needed
CAUSE
Why does it occur?
Blinks when the main circuit power supply is off and the 24 V external power supply is being input. • Power is supplied from a 24 V external power supply.
REMEDY · Step by step
How to fix it?
• Turning ON the power supply (main circuit) of the inverter clears the indication. • If the indication is still displayed after turning ON of the power supply (main circuit) of the inverter, the power supply voltage may be low, or the jumper between terminals P/+ and P1 may be disconnected.
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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