Fanuc Wn57 Override Function Is Active [better] Jun 2026

This is often a rather than a hard error. It usually triggers in the following scenarios:

This forces the operator to hit RESET and disable overrides. fanuc wn57 override function is active

This status is often triggered when a user or technician is "forcing" I/O points to test logic without actually firing physical sensors or switches. On newer controls like the Series 30i/31i/32i, an This is often a rather than a hard error

To maximize the benefits of the FANUC WN57 override function, users should follow best practices, including: On newer controls like the Series 30i/31i/32i, an

You should now be able to start the tapping or threading operation without the WN57 alarm.

Below is a practical to understanding, handling, and clearing this condition.

The message is a PMC (Programmable Machine Control) alarm commonly found on FANUC CNC systems. Unlike standard system alarms that indicate hardware failures, this message signifies that a specific PMC debugging tool—the Override Function —has been enabled .