Fanuc Wn57 Override Function Is Active

After performing a (mid-program start), the operator may not complete the "distance-to-go" cancellation. The controller remains in an “Override” state (a type of position deviation allowance) until the cycle start is pressed again. Attempting to edit or reset the sequence prematurely triggers WN57.

To clear the WN57 warning and restore normal operations, follow these steps: Step 1: Inspect the Physical Dials fanuc wn57 override function is active

The warning is a helpful diagnostic indicator designed to keep processes predictable. In most everyday scenarios, it requires nothing more than turning a physical dial back to its standard 100% position or ensuring a safety door is completely sealed. By systematically verifying the physical switches, checking interlock states, and inspecting PMC inputs, maintenance technicians can quickly eliminate this alert and keep production running at maximum efficiency. To help isolate the issue further, please share: After performing a (mid-program start), the operator may

Before turning off the override, ensure that any forced signals were not masking a physical fault or sensor failure, as the machine will immediately return to following the actual physical inputs. To clear the WN57 warning and restore normal

Ability to navigate to and modify PMC parameters safely.