Siemens 61003 alarm: Cycle: feed not programmed

The Siemens cycle detects absence of feed F before being executed. It is an alarm from the Program area, and in the catalog it is listed as “Cycle: feed not programmed”. On the machine you notice it like this: Fails when calling the cycle, Cycle block message, It can happen after editing by hand.

On the shop floor it almost always comes from one of these causes: F not programmed, F deleted after editing, Postprocesador omite F, Modal incorrecto. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset after adding correct F. Resetting without fixing the cause first only hides the problem: Siemens 61003 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 F in the block before the cycle, Validar postprocesador, Simular trayectoria. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Siemens 61003 active, avoid this: Do not machine with an unknown F, Do not use default values without checking them. Skipping any of these points is what turns a minor stop into an expensive breakdown.

Normally requires no maintenance. 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.