Fanuc Starting System Software — Please Wait

Green lights typically indicate healthy power and status, while red or amber LEDs signal a system fault, watchdog timer error, or axis communication failure. Step 3: Check Power Supply Voltages

If you can access the Boot System screen, you can attempt to restore operation by managing the internal memory files. Option A: Back Up Existing Data Immediately fanuc starting system software please wait

| 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 | Green lights typically indicate healthy power and status,

Locate the test points on the FANUC Power Supply Unit (typically found on the main control slot). : A faulty CPU board, SRAM card, or

: A faulty CPU board, SRAM card, or a dead CMOS/main board battery can cause a boot failure. Power Supply Issues