Fanuc Wn57 Override Function Is Active [OFFICIAL]

The WN57 alarm typically appears under several circumstances:

| Aspect | Details | |--------|---------| | | WN57 | | Alarm Message | OVERRIDE FUNCTION IS ACTIVE | | Alarm Type | PMC System Alarm | | Meaning | The PMC override/debug function is enabled | | Cause | Override function activated for ladder debugging | | Primary Fix | Disable override in PMC parameters or set K906.0=0 | | Official Note | For debugging only; disable before shipment | | Risk Level | Configuration warning, not a hardware fault | | Resolution Time | Typically under 5 minutes | fanuc wn57 override function is active

Unlike critical system alarms that immediately halt all machine motion (E-stops), a warning (denoted by the "WN" prefix on newer FANUC i-Series controls) serves as an informational alert. It signifies that the machine is operating under modified parameters that could affect cycle times, part finishes, or automated sequences. What is the WN57 Warning? In many FANUC configurations, this function is tied

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 . Locate K906 and ensure bit 0 is set to 0