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FX5U 440EH — Security function error
Warning — monitor
CAUSE
Why does it occur?
• The security function was activated and password authentication cannot be performed. • Register/cancel file password was attempted on a file set to permanent programmable controller lock.
REMEDY · Step by step
How to fix it?
• Set a correct password and perform password authentication again after a certain period of time. • It is necessary to delete the whole project to delete the file set to permanent programmable controller lock.
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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