Mitsubishi M01 0030 alarm: Excessive error (stop)

Mitsubishi/MELDAS detects excessive position error with stopped or braking axis. It is an alarm from the Servo / ejes area, and in the catalog it is listed as “Excessive error (stop)”. On the machine you notice it like this: Axis does not maintain position, Alarm when holding or after braking, It can go with vibration.

On the shop floor it almost always comes from one of these causes: Faulty servo brake, Fuerza externa, Encoder/cable, Gain parameters. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset only after removing the load; if it returns, stop. Resetting without fixing the cause first only hides the problem: Mitsubishi M01 0030 trips again and, in the meantime, you keep working with the machine in bad shape.

With the machine stopped and in a safe state, start with these checks: Anotar eje, Confirm absence of external load, Check servo diagnosis. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Mitsubishi M01 0030 active, avoid this: Do not bypass safety devices, Do not manipulate energized electrical cabinet, Do not continue producing if the alarm reappears. Skipping any of these points is what turns a minor stop into an expensive breakdown.

Siempre. If you are not sure how far it goes, stop the machine and report it: a repeat alarm always works out cheaper than a crash.

It is critical: there is a real risk of damage to the machine, the tool or a person. Leave the machine stopped, do not keep resetting it to see if it goes away, and call maintenance before producing again. Guidance reference. Always confirm the full text in the exact machine/control manual.