Zero Servo Fault

What does SVE mean?

The motor position moved more than 10,000 revolutions during zero servo operation, indicating a loss of position control. This can be caused by an excessively small torque limit, an overly large load torque, or a fault within the control circuit, possibly due to electrical noise interfering with position feedback.

Complete Troubleshooting Guide

1. 1

   Increase the torque limit parameter setting (e.g., L3-01) for zero servo operation to allow the drive to exert more force.

2. 2

   Reduce the mechanical load torque on the motor to ensure it operates within its capabilities during zero servo.

3. 3

   Inspect and mitigate any sources of signal noise affecting the control circuit and feedback wiring; check shield grounding.