Locate the two rightmost softkeys beneath the CNC display screen (typically the two keys furthest to the right under the monitor). Press and hold these two softkeys simultaneously.
Once you are in the MAIN MENU of the Boot System, you have powerful options at your disposal, such as:
| Step | Action | Outcome | | :--- | :--- | :--- | | | Wait 5 Minutes | Confirm it is actually stuck, not just slow. | | 2 | Hard Power Cycle | Clears temporary glitches in RAM. | | 3 | Check Batteries | Ensure SRAM data retention is valid. | | 4 | Reseat Memory Card | Fixes poor electrical connectivity. | | 5 | Check Power Supply | Ensures stable voltage to CPU/Memory. | | 6 | Reload System SW | Last resort if Flash ROM is corrupted. |
This will clear the SRAM and essentially factory reset the unit. Hold down the fanuc starting system software please wait
Most FANUC controls have an hidden Initial Program Loader (IPL) menu. To access it:
Hold down the 0 and . (decimal point) keys simultaneously while powering on the machine. Keep them held until the system boots to the main screen.
If possible, try a different teach pendant and cable to rule out communication failure. 2. Accessing the Boot Monitor (BMON) Locate the two rightmost softkeys beneath the CNC
The message appears during step 3 or 4. Under normal conditions, this text is visible for only 5 to 20 seconds. If it persists for more than 2 minutes, the boot process has stalled.
What is the of your FANUC control (e.g., 0i-MD, 18i-T, 31i)?
When you power on a FANUC-controlled machine, the startup procedure isn't instantaneous. The message "starting system software please wait" is part of the system's . | | 2 | Hard Power Cycle | Clears temporary glitches in RAM
This allows the FANUC power supply to execute its orderly shutdown sequence, closing files and writing the SRAM image to flash where applicable.
The most frequent culprit is data corruption within the system memory modules (FROM/SRAM module).