PLCFX5UVerification pending — cross-check with the official manual
FX5U 4403H — Security function error
Warning — monitor
CAUSE
Why does it occur?
• Both passwords for reading and for writing do not match the previous passwords when trying to change, authenticate, or delete password.
REMEDY · Step by step
How to fix it?
• Set correct passwords for both reading and writing, and perform password authentication.
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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