SVE

Zero Servo Fault

Yaskawa · F7 Drive

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.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

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

Source: Yaskawa F7 Drive
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