Fanuc Wn57 Override Function Is Active

Verify that or Z-Axis Neglect modes are turned off. Step 3: Inspect PMC Parameters and System Variables

is the specific hexadecimal or decimal identifier assigned by the machine tool builder (MTB) or FANUC's system software to signify an active override condition.

[Identify the Override] ──> [Normalize Switches] ──> [Toggle G-Codes/Modes] ──> [Check PMC Diagnostics] Step 1: Normalize Physical Override Switches

Make it a habit for operators to visually verify that all override dials are set to 100% before running a verified, production-ready CNC program. fanuc wn57 override function is active

The FANUC WN57 override function refers to a specific setting or code that can be activated in certain FANUC control systems. FANUC, a leading manufacturer of CNC systems, provides a range of control units and software that manage the operation of CNC machines. These machines are widely used in manufacturing for tasks such as cutting, drilling, and shaping materials.

Alternatively, check if variable #3004 (which controls feedrate, exact stop, and pause overrides) has been set to a value other than 0 . If it is locked, executing #3004=0 in MDI mode will instantly restore normal override control. Impact on Production If Ignored

The FANUC WN57 override function is commonly used in various CNC machining applications, including: Verify that or Z-Axis Neglect modes are turned off

: 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"

: Check the MTB's manual for specific Keep Relays (K) or Data Table (D) settings. Builders often use these to "latch" an override active for specific tasks.

If the warning was triggered by an interrupted macro program (like a tool setter or workpiece probe cycle), the system variables might be locked. Switch the machine to . Press the PROGRAM key. The FANUC WN57 override function refers to a

While it is just a warning, ignoring WN57 Override function is active can lead to serious issues:

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) :

Check system variable #3004 . If #3004 is set to a value of 1, 2, or 3, it intentionally disables or alters feed hold and override functions. Resetting the control via the key usually reverts this variable to 0. Step 5: Diagnose Hardware via PMC Diagnostics