Instead of permanently disabling the alarm, it is safer to replace the faulty fan motors immediately. Related Alarms and Context
On FANUC Series 0i and related control platforms, the system monitors the rotational speed and temperature of the main CNC cabinet cooling fans. When a fan fails or drops below safe RPM thresholds, the system throws a hardware interlock alarm: : ALM701 SYS_FAN ALARM fanuc parameter 8901 better
Move your cursor to PWE, press the (OPRT) soft key, change the value from , and press INPUT . Note: The machine will display a non-critical "PWE Alive" alarm. Ignore this for now. Step 2: Navigate and Edit Parameter 8901 Press the SYSTEM function key. Instead of permanently disabling the alarm, it is
. This alarm is a critical warning; without proper airflow, the internal electronic components of the CNC can overheat, leading to hardware failure or data corruption. Parameter 8901 bit 0 (often written as ) controls the system's response to this fan error: Setting 0 (Standard): Note: The machine will display a non-critical "PWE