Fanuc Starting System Software Please Wait ((link)) 〈2024〉

: Ensure the four green LEDs on the main board are active. Ideally, the top two should blink bottom two should be solid Perform an INIT Start : This clears the SRAM and can fix corruption issues. Power down the controller.

FANUC power supplies are resilient, but a 24VDC supply that is dropping to 19V or spiking to 30V due to a failing PSU can cause the CPU to reset mid-boot. The message appears, then the watchdog timer resets the CNC, looping endlessly. fanuc starting system software please wait

Data corruption on the FROM/SRAM memory due to improper shutdowns or power surges. : Ensure the four green LEDs on the main board are active

This allows the FANUC power supply to execute its orderly shutdown sequence, closing files and writing the SRAM image to flash where applicable. FANUC power supplies are resilient, but a 24VDC

Reloading system software erases all CNC parameters, pitch comp, and programs. You must have a separate backup (e.g., SRAM backup file CNC.PRM or a paper printout). Without this, your machine will boot but will not move correctly—servo parameters and axis configuration will be defaulted.

| Stage | Display Message | Action | |-------|----------------|--------| | 1 | None (backlight only) | Hardware init, RAM check | | 2 | "FANUC Series [Model]" | Boot ROM loads | | 3 | | Loading System Software (IPL) & SRAM | | 4 | "AXIS CONTROL READY" | Servo initialization | | 5 | CNC/Manual Guide i screen | Normal operation |