How to Setup a VSD to Auto Start after Power Failure

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VSD Auto Start Setup

Connect a On/Off Switch between terminals DI1 and Common and then set:

  • b0-02 = 1 (terminal control)
  • b1-07 = 1 (free stop mode)
  • b3-15 = 15 (DI1 On Delay time to delay the Start-up Process)

When the switch is On, the VSD will Start and Run the motor. If a power failure occurs, the VSD will automatically start the motor up again once the power supply returns.

* Please Note: This is not ideal if the requirement is to Start/Stop a VSD by switching the power supply On/Off (causes instantaneous discharge shock impact on capacitors which will reduce the service life of the capacitors) – for a better method of achieving this using an Intermediate Relay, please see the following FAQ Entry: How to Setup an Intermediate Relay to Power a VSD On/Off

 

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