ServoMR-J4Verified · sol.ls-electric.com
MR-J4 AL.9A — Optional unit input data error warning
Warning — monitor
CAUSE
Why does it occur?
The receive data of the CC-Link IE communication is abnormal, or the optional unit input data is abnormal.
REMEDY · Step by step
How to fix it?
Check the optional unit input data and the slide switch combination of the servo amplifier.
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
Verified · sol.ls-electric.com
Open PDF ↗LS Electric official manual
p.114