ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.28 — Linear encoder error 2
Trip — immediate stop
CAUSE
Why does it occur?
- - Working environment of linear encoder is not normal. Detail No. Detail name Cause Check method Check result Action Target 28.1 Linear encoder - Environment error (
- The ambient temperature of the linear encoder is out of specifications. Check the ambient temperature of the linear encoder. It is out of specifications. Lower the temperature. Contact the linear encoder manufacturer. [A] [B] [WB] [
REMEDY · Step by step
How to fix it?
Check the scale and cable, and replace as needed
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 ↗