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When any of these functions are in an "active" state, the CNC is technically not in pure Memory or MDI operation. The WN57 warning appears when you attempt to change modes (e.g., from EDIT to MEM) or start a program while one of these overrides is still engaged.
) and the actual axis movement speed—is being manipulated outside of its standard production parameters. This usually happens for one of three reasons: fanuc wn57 override function is active
Use or specific MTB codes to check if override suspension is locked out or active.
Your PMC ladder may use a custom Keep Relay for this function. To locate the exact address: This public link is valid for 7 days
当您正在操作一台配备FANUC数控系统的机床时，控制器屏幕上突然弹出一条**WN57“OVERRIDE FUNCTION IS ACTIVE”**的报警信息。这并非机床发生了机械故障，也不是硬件损坏，而是一个来自PLC（可编程逻辑控制器）的“警戒”信息，它在提醒您：机床的PMC程序正运行在一个特殊的调试模式中。
: 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" Can’t copy the link right now
这是最通用、操作界面最友好的方法。
Look at the current program execution screen. Check if a modal G-code is forcing an override state. For example, some machine setups utilize specific macro variables or regional
Utilize specific M-codes within your CNC programs that programmatically disable or enable override controls during critical machining passes (such as tapping cycles, where feed/speed synchronization is vital).