F
Resistor Module Abnormal Discharge (1) (ECM)
Fanuc · αi Series AC Servo Motor and Spindle
What does F mean?
The Capacitor Modules are not discharging as expected, indicating a potential malfunction of the discharge circuit or the Resistor Module itself.
Repair Steps
- 1
Inspect the Resistor Module and its connections for damage or open circuits.
- 2
Verify the control signals for initiating discharge.
- 3
Check the Capacitor Modules for any condition preventing discharge.
Verified technical data. Last updated: March 2026
Source: Fanuc αi Series AC Servo Motor and Spindle