Why does turning on circuit breaker for VFD not make motor run?

The following reasons may cause this issue:

  • The circuit breaker is faulty and not supplying power to VFD.
  • The VFD has not received a run command or run command has not been configured.
  • The VFD is indicating an error.

How to address these causes:

  • Check the power supply to VFD.
  • Verify if there is a run command for VFD (check if the RUN indicator light on VFD is illuminated) and review the configured parameters for VFD.
  • Check if VFD is displaying an error, and if so, identify nature of error. Contact the dealer for proper resolution.