Fanuc Wn57 Override Function Is Active [2021] -

He found the bit. Signal G008.6: Spindle Override Active.

If you are running a FANUC-controlled CNC machine and have encountered the alarm or status message stating "Override Function is Active," don’t panic.

Ensure the machine is not in "Manual" or "Maintenance" mode if you are trying to run a automatic program.

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."

The FANUC WN57 alarm is not a cause for immediate panic but a sign that the machine is currently in a special engineering state not intended for production. Understanding this alarm, its purpose, and how to resolve it provides valuable insight into the interaction between your FANUC CNC and its internal logic control. fanuc wn57 override function is active

Check your override knobs. Set them all to 100%. The machine will then proceed.

In simple terms, Common Causes for the WN57 Override

This forces the operator to hit RESET and disable overrides.

: This message often triggers when the machine is in a "Setup" or "Maintenance" mode where standard safety interlocks (like door switches) are bypassed, or when the feedrate is locked to a specific percentage (e.g., 100%) to ensure predictable behavior during automated cycles. Common Causes & Solutions He found the bit

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Watch for bits that change state when you toggle your physical setup switches. Look for any bits that remain high (1) when they should be low (0). Step 4: Reset System Variables via MDI

Press the (PMC Maintenance) softkey, then select STATUS .

within the PMC program without needing the actual machine hardware to be in a specific position. Ensure the machine is not in "Manual" or

WN57 OVERRIDE FUNCTION IS ACTIVE message on a FANUC control indicates that the PMC Override (forced I/O) function is currently enabled

The message is a specific PMC (Programmable Machine Control) alarm found on FANUC CNC systems . It indicates that the Override Function —a debugging tool used to manually force PMC signals—is currently enabled .

Elias blinked. He reached over and toggled the Dry Run switch on, then off. It clicked firmly.