Understanding the FANUC WN57 Override Function Active Message

Common Causes:

Applications of the FANUC WN57 Override Function

• New operators may mistake it for an error and panic.
• On some older FANUC models (0i, 16i, 18i), the message is small and easy to overlook.

Elias turned to see Marcus, the shop foreman, leaning against a pillar, sipping coffee. "She’s not stubborn, she’s confused. I didn't touch the override knob. I was running at 100% feed."

If the machine has finished being serviced or debugged, you should disable this function to return to standard operation. Use one of the following methods: Via PMC Parameters: Navigate to the PMC Parameter setting screen. Locate the Override Function (often listed as "倍率功能" or "Override Mode"). Move the cursor to the "Valid" setting and change it to Via Keep Relays (K-Address): Change the value of system keep relay Why This Message Appears Active Debugging:

The "Override Function" allows an operator or technician to force a signal in the PMC ladder to a specific state (ON or OFF), regardless of the actual logic or physical input. This is useful for: