Fanuc Wn57 Override Function Is Active Access

During automated tool measurement or workpiece probing cycles (e.g., Renishaw cycles), the system activates standard skip signals (G31). If the manual feedrate override dial is active during these cycles, it can corrupt measurement data. The system throws the WN57 warning to signify that probe protection overrides are engaged. 4. Feed Hold or Single Block Interlocks

According to FANUC documentation: "Disable the override function before shipment because it is used to debug a ladder program". This is not merely a recommendation but a critical safety and quality requirement.

Check the physical control panel of the machine. Turn both the feedrate override dial and the spindle speed override dial exactly to the position. On many FANUC panels, this aligns the dials to the top-vertical position. 2. Deactivate Dry Run Mode

Are you trying to to run a program, or are you intentionally activating an override for maintenance?** fanuc wn57 override function is active

If feedrate overrides are locked into a lower threshold while spindle speeds remain high, chip loads will drop, potentially causing tool chatter, rubbing, and poor surface finishes.

"See?" Elias pointed. "The computer thinks I’m holding down the override button. But look." He spun the physical override dial on the panel back and forth. The on-screen percentage readout tracked it perfectly. 50%. 100%. 150%. It should have been clear.

Navigate to the PMC parameter setting screen on your FANUC controller. Check the physical control panel of the machine

💡 : To find the exact trigger, go to the PMC Maintenance screen and search for the address associated with Message WN57 . This will show you the exact ladder rung and the inputs required to satisfy the condition. Reference Documentation

Implement password protection for parameter changes when available.

Ensure the robot has fully retracted to its "Home" or "Safe" position outside the machine. 50%. 100%. 150%.

for a specific Robodrill model to verify which signals are currently being forced?

The WN57 message indicates that the CNC system is currently restricting or modifying its standard motion parameters because a specific override function has been triggered.

Were any or doors opened right before the warning appeared?