8540

Category: Alarm

Cause

1. Encoder signal wires are subject to interference
2. Excessive vibration or shock applied to the encoder
3. Encoder fault
4. Servo unit fault

Corrective action

1. Implement interference suppression measures for encoder wiring.
2. Check operating conditions; reduce mechanical vibration or install the servo motor correctly.
3. Turn on power again. If the alarm persists, the servo motor may be faulty. Replace the servo motor.
4. Turn on power again. If the alarm persists, the servo unit may be faulty. Replace the servo unit.