Fanuc Wn57 Override Function Is Active ((better)) -

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.

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

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 rare cases, a loss of CMOS memory

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 . How to Disable the WN57 Warning Note: If K906

A technician may have used the override function to bypass a faulty interlock or sensor during a recent repair and forgot to disable it.

Understanding the FANUC WN57 Override Function Is Active Message