“I can clear WN57 by pressing RESET + CAN together.”
He scrolled up to the header variables. The programmer had inserted a safety logic check. It was looking for a specific input state. If the machine detected any external override signal—like a feed hold or a dry run active—during the probing cycle, it triggered a user-defined macro alarm (WN57) to prevent the probe from crashing into the part due to incorrect feed fanuc wn57 override function is active
At the end of all your test programs, include: “I can clear WN57 by pressing RESET + CAN together
If you are a machine tool builder, consider modifying the ladder logic so that WN57 appears as a pop-up dialog with instructions (e.g., “Turn MLK off on panel OPR07”), rather than a cryptic message. “Turn MLK off on panel OPR07”)