ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.39 — Program error
Trip — immediate stop
CAUSE
Why does it occur?
- - A program used for the program operation is incorrect. Detail No. Detail name Cause Check method Check result Action Target 39.1 Program error (
- A checksum of the program did not match at power-on. (The program has an error.) Check if an error occurred (such as entered noise, power-off) at program write. It has a failure. Rewrite the program. [A] It has no failure. Check (2). (
- A program has
REMEDY · Step by step
How to fix it?
Check the host controller and communication cable
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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