The "Override Function" mentioned in this message refers to a specialized tool used by machine tool builders and maintenance technicians to debug the . When this function is active, it allows for the "forced" manipulation of PMC signals—effectively overriding the standard logic of the machine's ladder to test specific behaviors or troubleshoot faulty sensors.
Note: If K906.0 is already 0 and the message persists, check your machine builder's manual as they may have mapped the debug override to a different K-address. Why Did This Message Appear? fanuc wn57 override function is active
Find the entry labeled or "倍率" (in some regional settings). Change the status from "YES" (or 1 ) to "NO" (or 0 ). Method 2: Adjusting Keep Relays (K-Addresses) The "Override Function" mentioned in this message refers
FANUC documentation explicitly states that this function should be disabled before shipment or returning the machine to regular production. Leaving it active can lead to unexpected machine behavior because the ladder logic may not be executing under its original designed constraints. How to Disable the WN57 Warning Why Did This Message Appear
A technician may have used the override function to bypass a faulty interlock or sensor during a recent repair and forgot to disable it.
If the machine was recently accessed remotely via FANUC LADDER-III software, the override might have been triggered from the external PC. Summary Table: WN57 Message Details Description Message Type PMC Status/Warning (WN) Standard Address Typically controlled by K906.0 Criticality Low (Warning), but unsafe for production Required Action Disable Override Function in PMC Settings