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

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:

| Your goal | What to do | |-----------|-------------| | | Set rapid/feed override to 100%, dry run OFF, press RESET | | Run with override <100% | Ignore the warning if machine allows | | Machine refuses to run | Call machine tool builder – they set the logic | | You want to disable it | Check PMC ladder or FANUC parameter 3001#5 (OVW) | fanuc wn57 override function is active

If you see the WN57 message during normal production, it means this "force" mode was left on, which may cause the machine to ignore safety interlocks or standard operating conditions. How to Deactivate the WN57 Override The "Override Function" allows an operator or technician

: Forced signals may prevent the PMC from responding to real sensors or operator inputs. Below is a practical to understanding, handling, and

Below is a practical to understanding, handling, and clearing this condition.

To clear the WN57 message, you must disable the override function through the system parameters or the PMC maintenance screen: : Navigate to the PMC Parameter Setting screen. Locate the Override Function (倍率功能) option. Change the setting from "Effective/Yes" to "No" . Via Keep Relays (K-Addresses) :

This is a debugging feature typically used during the setup or maintenance of PMC programs to force signals into a specific state. While active, it can prevent the PMC program from operating normally, as forced signals may override actual machine logic. How to Disable the WN57 Warning