Seeing the message frozen on your FANUC CNC monitor is a common yet frustrating issue. It means the CNC control booth has powered on, but the main operating system cannot finish loading.

and observe if it proceeds past the screen. 2. Boot Monitor Menu (Controlled Start)

keys on the teach pendant simultaneously. While holding the keys, turn on the controller. Keep holding keys until the BOOT MONITOR screen appears. Select "2: Controlled Start" .

Keep holding the keys until the yellow or black menu appears on the screen. Diagnostic Outcomes:

FANUC Series 30i/31i/32i Maintenance Manual (B-65285EN), FANUC Boot System Operator’s Manual (B-63944EN).

Remember: the control is trying to tell you exactly what it is doing—it is trying to start the system software. Your job is to remove the obstacles preventing it from finishing.

Locate the two rightmost softkeys beneath the CNC screen (often marked as the and MDI keys, or the two blank keys on the far right, depending on the exact panel model). Press and hold these two softkeys simultaneously. While holding them down, turn on the CNC power control.

This article provides a comprehensive overview of why this message appears, how to troubleshoot a stuck system, and preventative measures to ensure smooth startups. What Does "Starting System Software Please Wait" Mean?