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In rare cases, a loss of CMOS memory or a failing backup battery can cause parameters and keep relays to scramble, potentially "flipping" the bit for the override function.
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)
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 fanuc wn57 override function is active
Because WN57 is an "active" status rather than a failure, it can usually be resolved by toggling the function off through the CNC’s internal settings or by modifying a specific Keep Relay ( -address). Method 1: Using the PMC Parameter Screen Navigate to the on your FANUC controller. Select [PMC SET] or [PMC PARAM] . Look for the Setting or Override sub-menu.
The message is a specific PMC (Programmable Machine Control) warning often encountered on FANUC Series 0i and 30i/31i/32i CNC systems. Unlike critical hardware alarms that halt all operations, WN57 is primarily a status notification informing the operator that a specific debug or maintenance mode has been left enabled. What is the WN57 Override Function? In rare cases, a loss of CMOS memory
A technician may have used the override function to bypass a faulty interlock or sensor during a recent repair and forgot to disable it.
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? Method 1: Using the PMC Parameter Screen Navigate
In many FANUC configurations, this function is tied directly to a system keep relay. The most common address used to control this function is . Go to SYSTEM -> PMC -> PMCPRM -> KEEPRL . Locate K906 and ensure bit 0 is set to 0 .
In rare cases, a loss of CMOS memory or a failing backup battery can cause parameters and keep relays to scramble, potentially "flipping" the bit for the override function.
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)
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
Because WN57 is an "active" status rather than a failure, it can usually be resolved by toggling the function off through the CNC’s internal settings or by modifying a specific Keep Relay ( -address). Method 1: Using the PMC Parameter Screen Navigate to the on your FANUC controller. Select [PMC SET] or [PMC PARAM] . Look for the Setting or Override sub-menu.
The message is a specific PMC (Programmable Machine Control) warning often encountered on FANUC Series 0i and 30i/31i/32i CNC systems. Unlike critical hardware alarms that halt all operations, WN57 is primarily a status notification informing the operator that a specific debug or maintenance mode has been left enabled. What is the WN57 Override Function?
A technician may have used the override function to bypass a faulty interlock or sensor during a recent repair and forgot to disable it.
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?
In many FANUC configurations, this function is tied directly to a system keep relay. The most common address used to control this function is . Go to SYSTEM -> PMC -> PMCPRM -> KEEPRL . Locate K906 and ensure bit 0 is set to 0 .