Haas 107 alarm: Emergency Off (E-stop pressed)

Haas detects the emergency stop pressed or the E-stop circuit open. It is an alarm from the Safety area, and in the catalog it is listed as “Emergency Off (E-stop pressed)”. On the machine you notice it like this: Servos desactivados, Machine stopped immediately, Requests double reset after releasing.

On the shop floor it almost always comes from one of these causes: Seta pulsada manualmente, Cable de E-stop abierto, Interlock externo abierto, Safety relay failure. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Release the e-stop and press RESET twice (E-stop and Servo Off) after making the area safe. Resetting without fixing the cause first only hides the problem: Haas 107 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: Visually check every e-stop button, Check the doors and guards, Confirm cause before releasing. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Haas 107 active, avoid this: Do not bypass the circuit, Do not release without knowing why it was activated, Do not reset without making the area safe. Skipping any of these points is what turns a minor stop into an expensive breakdown.

If the e-stop does not release or the circuit reports open with no obvious cause. 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.