Starting System Software Please Wait | Fanuc

When a FANUC CNC displays "Starting system software please wait" (or similar), the controller is initializing firmware, loading system software modules, or performing a firmware/self-check after power-on or a reboot. It can be normal for several seconds to a few minutes, but extended or repeated hangs indicate a problem.

The pendant cannot communicate with the controller, causing it to stall. fanuc starting system software please wait

You have just powered up your CNC machining center or industrial robot. The FANUC operator panel lights up. You expect to see the familiar position screen or the alarm history. Instead, a stark, white-on-blue (or black-on-amber) text message stares back at you: When a FANUC CNC displays "Starting system software

Warning: Only do this with the power completely off. Dust and vibration can loosen the DIMM modules or the yellow plastic-cased modules on the main board. Gently reseating these, as well as the fiber optic (FSSB) cables, can often resolve "Please Wait" hangs caused by poor connectivity. When to Call a Technician You have just powered up your CNC machining