Fanuc Wn57 Override Function Is Active Instant

Include override function activation in maintenance logs.

Safety sensors (doors, light curtains) might be overridden, putting operators at risk.

: Ensure that operators are adequately trained and understand the implications of activating and adjusting the override function.

Does the message , or is it just a visual warning? Share public link fanuc wn57 override function is active

The physical dial on the operator panel is not set to 100%.

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.

The FANUC WN57 override function refers to a specific setting or code that can be activated in certain FANUC control systems. FANUC, a leading manufacturer of CNC systems, provides a range of control units and software that manage the operation of CNC machines. These machines are widely used in manufacturing for tasks such as cutting, drilling, and shaping materials. Include override function activation in maintenance logs

“I can clear WN57 by pressing RESET + CAN together.”

Working with the override function and resolving the WN57 alarm requires specific competencies:

Find the override function or override enable setting in the PMC parameters. Does the message , or is it just a visual warning

Before you panic and reboot the entire machine (which you should avoid unless necessary), follow this systematic checklist.

Utilize specific M-codes within your CNC programs that programmatically disable or enable override controls during critical machining passes (such as tapping cycles, where feed/speed synchronization is vital).

Verify if a specific M-code or macro in your current program is forcing an override state via the ladder logic. Impact on Production