PLCFX5UVerification pending — cross-check with the official manual
FX5U 4422H — Security function error
Warning — monitor
CAUSE
Why does it occur?
• The access target CPU module does not support the security key information stored in the engineering tool.
REMEDY · Step by step
How to fix it?
• Change the security key information version of the engineering tool in accordance with the version supported by the target CPU module.
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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