Mazak 231/234/236 alarm: Tool eye, tool clamp or parts catcher sensors

Mazak detects inconsistency in auxiliary tool eye, tool clamping or parts picker sensors. It is an alarm from the Tool change / ATC area, and in the catalog it is listed as “Tool eye, tool clamp or parts catcher sensors”. On the machine you notice it like this: The auxiliary sequence does not complete, Does not allow change/measurement, Bad sensor message.

On the shop floor it almost always comes from one of these causes: Dirty or misadjusted sensor, Actuator does not reach position, Low tire pressure, Wiring. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset tras completar/retraer accesorio de forma segura. Resetting without fixing the cause first only hides the problem: Mazak 231/234/236 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: Identificar accesorio afectado, Check physical position, Check diagnostic entries. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Mazak 231/234/236 active, avoid this: Do not force the actuators, Do not put hands in moving parts. Skipping any of these points is what turns a minor stop into an expensive breakdown.

If the sensor does not change or the actuator stops mid-cycle. 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 a stop alarm: the cycle will not continue until you fix the cause. It does not always mean serious damage, but it leaves the machine where it is and you have to check it before running again. Guidance reference. Always confirm the full text in the exact machine/control manual.