Fanuc Wn57 Override Function Is Active

Checking if a tool changer will move even if a specific sensor isn't triggered.

This indicates that a function within the machine’s PLC ladder (designed by the machine tool builder, not necessarily FANUC itself) is currently bypassing the standard operation logic.

Switch to or MEM mode and check the current active G-code modal list. fanuc wn57 override function is active

: Once the setting is changed, restart the CNC to clear the warning message. Important Safety Note:

While it typically does not lock the control panel, leaving this function active can cause unexpected program execution speeds, cycle time fluctuations, or accidental safety risks. Understanding how to diagnose, navigate, and clear this warning is essential for maintaining production efficiency and shop floor safety. Technical Context: What Does WN57 Mean? Checking if a tool changer will move even

CNC machines utilize overrides to allow operators to manually speed up or slow down automated programs in real time. When the system throws the WN57 warning, it informs the operator or an external automation system (like a robotic loader) that the machine is not running at its exact programmed velocities. Common Causes of the WN57 Alert

If your shop floor purposely sets a Keep Relay to permanently activate an override for a specific fixtures or automated cell integration, clearly label the machine control box to prevent maintenance confusion. If you want to clear this warning right now, tell me: : Once the setting is changed, restart the

Search for the override signals (commonly mapped to G-bytes or F-bytes in FANUC logic, such as the Feedrate Override signals G0012 ).