ServoMR-J4Verified · sol.ls-electric.com
MR-J4 AL.31 — Overspeed
Trip — immediate stop
CAUSE
Why does it occur?
- - The servo motor speed has exceeded the instantaneous permissible speed. - The linear servo motor speed has exceeded the instantaneous permissible speed. Detail No. Detail name Cause Check method Check result Action Target 31.1 Abnormal motor speed (
- The command pulse frequency is high. Check the command pulse frequency. The command pulse frequency is high. Check operation pattern. [A] The comm
REMEDY · Step by step
How to fix it?
Check the motor load and the speed limit setting
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.
Open official manual ↗