PLCFX5UVerification pending — cross-check with the official manual
FX5U 3042H — Update error
Warning — monitor
CAUSE
Why does it occur?
• An error is detected in the update of the extension module.
REMEDY · Step by step
How to fix it?
Stop
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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