Fanuc Starting System Software Please Wait Fixed -
Faulty DRAM or FROM modules prevent the system from successfully copying and executing the boot software.
Stuck at "Starting System Software. Please Wait": A Troubleshooting Guide for Fanuc Controllers If your Fanuc controller is stuck on the "Starting System Software. Please Wait"
The main board constantly communicates with option cards plugged into the backplane, such as: Fast Ethernet cards Data Servers PCMCIA card slot assemblies Additional axis control cards
Replace the CNC memory backup batteries annually while the control is powered on. This prevents data loss during scheduled shutdowns. fanuc starting system software please wait
To reduce the likelihood of encountering startup software freezes, implement these regular maintenance practices:
Before opening a service ticket or diving into complex diagnostics, perform these basic but critical checks. Many "hangs" are caused by simple, overlooked issues.
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. Faulty DRAM or FROM modules prevent the system
The screen will clear and display a text-based menu with options like:
Do not wait for the low battery alarm to flash. Replace your CNC control and servo amplifier batteries every 12 months.
For the machine operator, the message is a lesson in patience and procedure. The cardinal rule is simple: never interrupt the boot cycle. Forcefully cycling power while the message is displayed is the most common cause of software corruption, as it can leave the flash memory in an inconsistent state. A skilled operator knows that this "Please Wait" is not an error, but an invitation to observe—listening for the characteristic clunk of the electromagnetic contactors and watching for the transition to the coordinate position display. In some older Fanuc models, the wait might be followed by a "NOT READY" alarm, which simply means the operator must press a cycle start or reset button. In modern controls, it fades silently into the main interface, its job complete. Please Wait" The main board constantly communicates with
Ensure the robot is not stuck in a severe overtravel or E-stop condition.
Q: How long does it take for the Fanuc system to initialize? A: The initialization process typically takes 5-15 minutes, depending on the machine's configuration and software.
Power on the system. If the control advances past the "Please Wait" screen, one of the removed cards or external devices is defective or causing a bus conflict. 4. Check the Back-Up Battery and Memory Integrity
