This guide applies to FANUC CNC controls (Series 0i, 30i/31i/32i, Power Motion i, and RoboDrill).
What you should see: The screen will clear and display a text-based menu with options like:
The "Starting System Software" file stored on the Flash ROM has become damaged. This can happen due to: fanuc starting system software please wait
7-Segment Display: Check for specific codes. A "0" might indicate a parity alarm in the DRAM, while other codes can point to specific hardware failures.
The message "System software starting up, please wait" on a Fanuc CNC or robot controller indicates the system is hanging during its boot sequence. This screen typically appears as the controller attempts to load critical system files from non-volatile memory (FROM) into the working memory (SRAM). Common Causes for Startup Hangs Corrupted SRAM Data: This guide applies to FANUC CNC controls (Series
Backup Configurations: Regularly back up your system configurations and programs to prevent data loss in case of a system reset or failure.
If the main CPU board, the DIMM memory modules, or the display link (fiber optic cables) are damaged, the boot sequence will fail. On older "i" series controls, check the small 7-segment LED display on the back of the main board. If it shows an error code (like a flashing "L" or "8"), it points to a specific hardware failure. 4. Peripheral Interference A "0" might indicate a parity alarm in
Contact professional service if:
Boot Monitor Access: Attempt to enter the Boot Monitor by holding F1 and F5 while turning on the power. From here, you may be able to perform an INIT Start or restore from a backup image. Safety & External Faults:
