Elias did exactly that. He checked the dial. It sat perfectly at the detent for 100%. He hit Cycle Start .

is the specific hexadecimal or decimal identifier assigned by the machine tool builder (MTB) or FANUC's system software to signify an active override condition.

(often labeled as "Override Effective" or similar) and change its setting to "Inactive" Direct Parameter Change

If step 1–3 fail, the is holding WN57 active.

Understanding and Resolving the FANUC WN57 "Override Function is Active" Warning

Locate the and Rapid Traverse dials on your operator interface. Turn both dials exactly to the 100% position.

While you can often still run a program with WN57 active, ignoring it is not recommended for production environments:

Automated cells may experience timing desynchronisation between the CNC machine and external automation layers. Step-by-Step Troubleshooting and Resolution

In simpler terms: The CNC is telling you, “I cannot run this cycle because someone has turned a knob (override) that I am not allowed to ignore right now.”

The WN57 warning indicates that one or more override switches on the machine operator panel are not set to their standard 100% operating values, or a software-driven override function has been triggered within the PMC (Programmable Machine Control).

G10.6 P1 Rxxx; (override active) G10.9 P1 Rxxx;

This condition is typically tied to safety interlocks, maintenance modes, or specific CNC software features. When active, the control system forces the machine to ignore standard G-code velocity commands. Instead, it enforces a pre-defined, safe speed limit. Primary Causes of WN57

If the physical dials are at 100% and the warning persists, a software flag is likely locked in the PMC memory. Press the hard key on the FANUC panel.

: When testing new machining processes or calibrating the machine for optimal performance, the override function can be invaluable. It allows for real-time adjustments and evaluation of different settings.