Consult your specific machine tool builder manual (e.g., your ROBODRILL instruction manual) to locate the exact Keep Relay assigned to "Override Functions." Switch the control to , enable Parameter Write (
This status is often triggered when a user or technician is "forcing" I/O points to test logic without actually firing physical sensors or switches. On newer controls like the Series 30i/31i/32i, an
The message is a specific PMC (Programmable Machine Control) alarm found on FANUC CNC systems . It indicates that the Override Function —a debugging tool used to manually force PMC signals—is currently enabled .
The Fanuc WN57 override function is a feature available on certain Fanuc CNC (Computer Numerical Control) systems, particularly on their 0i-series and later control systems. When the override function is active, it allows the operator to temporarily adjust the programmed feed rate or spindle speed during machining operations. In this article, we'll delve into the details of the Fanuc WN57 override function, its purpose, and how it works. fanuc wn57 override function is active
The most basic cause is that the physical feed rate override dial or spindle speed override dial on the operator panel is set away from its standard
Inspect the operator panel for any active , Maintenance , or Manual Interlock keys.
The alert protects your machine, tools, and workpieces. It reminds you that the machine is not running at its fully programmed speed. When debugging this alert, check your operator panel knobs first, verify safety door settings second, and check PMC diagnostics last if the message refuses to clear. If you want to troubleshoot further, tell me: What FANUC control model are you using (e.g., 0i-F, 31i)? Consult your specific machine tool builder manual (e
The phrase means the CNC machine is running under modified speed or safety parameters. An override switch on the operator panel has been turned away from its standard 100% position, or a specific software safety override has been triggered in the PMC (Programmable Machine Control) ladder logic. Common Causes of the WN57 Warning
When using the WN57 override function, operators should follow these best practices and safety considerations:
In the FANUC control ecosystem, codes prefixed with a "WN" indicate rather than "AL" (Alarms). The Fanuc WN57 override function is a feature
The message informs the operator that one or more manual override switches on the machine control panel (MCP) are currently active and modifying the programmed execution values. This function is often tied to safety protocols, setups, or specific machine states where standard programmed speeds are intentionally bypassed. Most frequently, this warning triggers when: The machine is running in a setup or maintenance mode.
While the term "override" usually refers to physical knobs for feed or speed on a CNC panel, this specific message refers to a PMC software debugging tool . What WN57 Means
"Wait," Elias whispered. He looked at the G-code program currently loaded. It was a complex macro program imported from the main office. It used G31 (Skip Function) probes.