Heidenhain 220 alarm: Tool call error

The called tool does not exist, is poorly defined, or is missing information in the table. It is an alarm from the Program area, and in the catalog it is listed as “Tool call error”. On the machine you notice it like this: Falla en TOOL CALL, Does not change tool or load corrector.

On the shop floor it almost always comes from one of these causes: Incorrect tool number, Tabla TOOL.T incompleta, Tool not available in magazine. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset after correcting tool and leaving ATC in known state. Resetting without fixing the cause first only hides the problem: Heidenhain 220 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: Check TOOL CALL and TOOL DEF, Revisar tabla de herramientas, Confirm position in warehouse. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Heidenhain 220 active, avoid this: Do not assign length/radius without measuring, Do not force change if the magazine is not synchronized. Skipping any of these points is what turns a minor stop into an expensive breakdown.

If the warehouse does not recognize positions or there are PLC/ATC failures. 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. May depend on OEM tool management and TNC used.