Override Function Is Active [top] - Fanuc Wn57

The machine may not respond to commands, or act unexpectedly.

What is the exact (e.g., 0i-F, 31i) on your machine?

Do not rely solely on the CRT/LCD screen. Look at the physical operator panel.

Bookmark the override status screen on your FANUC control. It is the fastest path to diagnosing WN57 and getting back to cutting chips. fanuc wn57 override function is active

specifically belongs to a family of safety and interlock warnings. It translates to: “The control is currently in a state where manual or automatic override functions are engaged, preventing the requested action.”

If you see the WN57 message during normal production, it means this "force" mode was left on, which may cause the machine to ignore safety interlocks or standard operating conditions. How to Deactivate the WN57 Override

Did this alarm appear , or right at machine startup ? The machine may not respond to commands, or act unexpectedly

Physically turn each dial away from 100%, then firmly click or seat them back exactly onto the mark.

In most Fanuc implementations, a "WN" code refers to a (as opposed to an "AL" for Alarm).

Understanding and Resolving the Fanuc "WN57 Override Function is Active" Alarm Look at the physical operator panel

Here’s a useful, practical review of the message, written for CNC operators and setup personnel.

To remove the WN57 warning, you must disable the override function in the PMC parameter settings. Here are the common methods, ordered from simplest to most technical. Method 1: Changing the PMC Parameter Screen (Recommended) Go to the or PMC screen on your Fanuc controller. Navigate to the PMCPRM (PMC Parameter) screen. Find the option for "Override" or "Force".

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