To clear the WN57 message and return the PMC to its normal state, you must disable the override effective setting in the system parameters. Method 1: Via the PMC Parameter Screen Navigate to the screen on your FANUC controller. Select the [PMCPRM] (PMC Parameter) softkey. Look for the [SETTING] or [OVERRIDE] tab.
Below is a practical to understanding, handling, and clearing this condition. fanuc wn57 override function is active
The (also written as W057 ) is a status message on FANUC Robodrill and CNC systems indicating that the Override Function is currently active. To clear the WN57 message and return the
If step 1–3 fail, the is holding WN57 active. Look for the [SETTING] or [OVERRIDE] tab
In the realm of Computer Numerical Control (CNC) machining, Fanuc stands as a predominant manufacturer, renowned for robust control systems that prioritize precision and safety. However, even the most reliable systems encounter operational anomalies that can halt production and confuse operators. One such specific notification is the message: "Fanuc WN57 Override Function is Active." This alert relates directly to the machine’s feed rate management and the underlying data integrity of the CNC parameters. Understanding this message requires an examination of how Fanuc controls handle axis movement, the role of override functions, and the potential for parameter corruption. This essay explores the technical meaning of the WN57 alert, its impact on machining operations, and the procedural steps required for resolution.
If you want, I can produce a short checklist tailored to your machine model (e.g., FANUC Oi-MF, 32i-A) showing exact keys/screens to inspect.