PLCFX5UVerification pending — cross-check with the official manual
FX5U 1800H — Annunciator ON
Trip — immediate stop
CAUSE
Why does it occur?
An annunciator coil (F) in the program turned ON.
REMEDY · Step by step
How to fix it?
Check the program conditions and process state that turned the F coil ON.
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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