Parameter 8901 is a maintenance setting used to control how the CNC system responds to fan motor errors, specifically the ALM701 (Fan Motor Overheat) Understanding Parameter 8901#0 (FAN)
Look at the bit structure (the 8 boxes labeled 7 through 0). fanuc parameter 8901 better
Once you set 8901 = 1, consider adjusting two companion parameters to complete the upgrade: Parameter 8901 is a maintenance setting used to
With 8901 (Set to 1): The operator hits RESET. The tool stops. The control retains the G54 (or active offset) modal state. When Cycle Start is pressed, the tool resumes precisely where it left off regarding coordinate context. Enter MDI Mode
Modifying parameters, particularly in the 8000/9000 range, can affect machine protection and safety functions. If you can tell me:
. If a fan fails or runs too slowly, the CNC will trigger an alarm (ALM701) to prevent overheating. : Fan motor error not detected
Modifying CNC parameters without guidance from your machine tool builder (OEM) can lead to serious machine damage, reduced tool life, or safety hazards. Ensure all changes are verified and documented.