Fanuc Parameter 8901: Better

If the fan is not spinning, purchase a replacement fan (often available from Fanuc parts suppliers or industrial supply houses) and replace it immediately.

is a diagnostic parameter that allows the operator to mask or suppress certain alarm conditions. Specifically, bit 0 of parameter 8901 (8901#0) is often used to temporarily shield the system from the 701 Fan Alarm on several FANUC series, including the Oi-B, Oi-C, and related older systems. fanuc parameter 8901 better

Would you like a step-by-step procedure to change 8901 on your specific Fanuc model (e.g., 0i-D, 31i-B5) or a sample PMC ladder modification to remove the deceleration dog input? If the fan is not spinning, purchase a

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Using this parameter to bypass a genuine fan failure is dangerous for the long-term health of the servo amplifier. Risks of Ignoring the 701 Alarm