PLCFX5UVerified · sol.ls-electric.com
FX5U 1900H — Constant scan time error
Trip — immediate stop
CAUSE
Why does it occur?
The scan time exceeded the constant-cycle scan setting.
REMEDY · Step by step
How to fix it?
Increase the constant-cycle setting or reduce the program processing load.
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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