PLCFX5UVerification pending — cross-check with the official manual
FX5U 21A0H — File specification error
Alarm — operational, inspection needed
CAUSE
Why does it occur?
• The booted CPU module and the booting CPU module are not of the same model. • The file specified in the parameters does not exist.
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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