PLCFX5UVerified · sol.ls-electric.com
FX5U LED-ERR-BLINK — ERR LED red blink
Alarm — operational, inspection needed· AUTO-RESET
CAUSE
Why does it occur?
Minor self-diagnostic error or module diagnostic alert
REMEDY · Step by step
How to fix it?
Check the details in the GX Works3 diagnostics menu
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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