PLCFX5UVerification pending — cross-check with the official manual
FX5U 8100H — Auto-tuning malfunction
Warning — monitor
CAUSE
Why does it occur?
The difference between the maximum and minimum values for the measured value (PV) during auto tuning is too small.
REMEDY · Step by step
How to fix it?
Continue
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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