The WN57 alarm is a —meaning it originates from the PLC (Programmable Logic Controller) side of the CNC, not the main NC (Numerical Control) program.
What (e.g., 31i, 0i-F) is your machine using? fanuc wn57 override function is active
Ensure operators understand the significance of the WN57 alarm and know to report it immediately. The WN57 alarm is a —meaning it originates
Safety sensors (doors, light curtains) might be overridden, putting operators at risk. light curtains) might be overridden
When the WN57 alarm is active, you will typically see the following displayed on your FANUC CNC control screen:
The message persists as a safety precaution. If this function is left active after maintenance: The machine may behave unpredictably. Safety interlocks might be bypassed.
To maximize the benefits of the FANUC WN57 override function, users should follow best practices, including: