Fanuc · Series 30i/31i/32i-MODEL B Plus
An abnormal condition in the inverter's control power supply is signaled by a blinking dash on the LED display. This fault can arise from a failure in the JF* connector or cable, an issue with the motor, or an internal failure within the Servo Amplifier. This can lead to unreliable control functions.
Click steps to track your progress.
Check the integrity and secure connection of the JF* connector and its associated cable.
Inspect the motor for any signs of physical damage or malfunction, such as overheating or unusual noises.
If connections and motor are confirmed to be in good working order, replace the Servo Amplifier.