PLCFX5UVerification pending — cross-check with the official manual
FX5U 3515H — Operation error
Warning — monitor
CAUSE
Why does it occur?
• The operation direction estimated from the measured value at the start of auto tuning in the step response method was different from the actual operation direction of the output during auto tuning.
REMEDY · Step by step
How to fix it?
Continue/ stop*1
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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