Okuma 2600/8619 alarm: Stroke/overtravel limit

Okuma detects axis out of travel or travel limit reached. It is an alarm from the Sobrecarrera area, and in the catalog it is listed as “Stroke/overtravel limit”. On the machine you notice it like this: Axis locked at limit, Does not allow movement in one direction, May be caused by a wrong offset.

On the shop floor it almost always comes from one of these causes: Zero wrong piece, Program out of range, Software limit, Start from an unsafe point. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Release axis and correct program/origin. Resetting without fixing the cause first only hides the problem: Okuma 2600/8619 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 the offset and the block, Leave in a safe direction, Verificar referencia. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Okuma 2600/8619 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.

If it does not release or there is damaged physical end. 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.