: Since WN (Warning) alarms are often informational, the machine might still run, but specific safety or logic interlocks handled by the PMC could be bypassed by the active override. 【报警】FANUC PMC"WN57 OVERRIDE FUNCTION IS ACTIVE"
WN57: OVERRIDE FUNCTION IS ACTIVE is a PMC (Programmable Machine Control) warning indicating that the ladder program's "override" or "forced I/O" function is currently enabled. fanuc wn57 override function is active
If the operator or the program has engaged a spindle override while the machine is performing a critical, high-torque operation—like rigid tapping—the PMC may trigger a WN57 warning to indicate that the spindle speed is not matching the exact programmed speed required for the thread pitch. 2. Tool Change/ATC Interference : Since WN (Warning) alarms are often informational,
The rotary dial controlling cutting feed rates (G01, G02, G03) is set below or above 100%. It usually triggers in the following scenarios: Various
This is often a rather than a hard error. It usually triggers in the following scenarios:
Various other PMC system alarms exist for message file errors, CPU errors, and RAM parity issues, each requiring different troubleshooting approaches.
The override function enables the following capabilities: