Parameter 8901 Better - Fanuc

What are you trying to make? (e.g., faster tool changes, smoother surface finish, higher rapid rates) Are you looking to improve the servo motor response ?

In the world of CNC machining, FANUC controllers are known for their robustness and reliability. However, like any sophisticated electronic system, they require proper cooling to function at their best. Often, after a long weekend, a power outage, or simply due to age, FANUC systems may throw a or a Battery/Fan Alarm .

Type 8901 on the numeric keypad and click the soft key to find the registry. Locate the rightmost data bit ( Bit 0 , labeled as RRM ).

: Avoid the temptation to use this parameter adjustment entirely by maintaining spare FANUC internal cooling fans in your maintenance crib. They are inexpensive, easy to swap out, and eliminate the need to edit internal control parameters in the first place. fanuc parameter 8901 better

Press the button to clear the alarm. Some changes may require a full power cycle. When to Seek Help

: Temporarily shields or releases the ALM 701 (control unit upper fan overheat/failure).

Information on these topics is available to help maintain system integrity and operational efficiency. Share public link What are you trying to make

By changing parameter 8901, you can temporarily clear the 701 alarm. This allows the machine to run, assuming the fans are not critically necessary for that specific moment (e.g., in a well-ventilated, low-load scenario). 2. Time-Efficient Troubleshooting

: In many Series 0i-D or 0i-F controls, this parameter is used to enable the graphical simulation or monitoring window.

| Parameter Setting | Effect | |---|---| | 8901#0 = 0 | Fan monitoring enabled; 701 alarm active | | 8901#0 = 1 | Fan alarm suppressed; emergency bypass only | Locate the rightmost data bit ( Bit 0 , labeled as RRM )

Move your cursor directly over (the furthest position to the right). Key in 1 and hit INPUT . Step 4: Secure the Machine and Clear Alarms Fanuc 16i-18i-21i Data Input and Output Settings

Changing this parameter doesn't improve cutting speed directly, but it makes the machine "better" by: