In Fanuc CNC systems, Parameter 8901 is specifically used to manage fan-related alarms, such as the "701 Fan" alarm, which occurs when a system cooling fan fails or stops rotating properly.
For simplified shortcut axis programming, use parameter 1401#4 (RAB) in some newer FANUCs. fanuc parameter 8901 better
Temporary Troubleshooting: If you receive a 701 alarm, setting 8901 bit 0 to "1" can help confirm if the control unit is still operational or allow you to finish a critical cycle. In Fanuc CNC systems, Parameter 8901 is specifically
) detects that a cooling fan has slowed down or failed, it triggers Only qualified personnel should edit Fanuc parameters