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VLT® HVAC Drive FC 102Motor not running

VLT® HVAC Drive FC 102

Motor not running

A drive can be controlled in different ways and there are many potential reasons why the motor is not starting when it is supposed to.

Possible causes:

  • Service switch open or missing motor connection

  • Wrong reference signal source

  • Missing start signal (Standby)

  • Motor coast signal active (Coasting)

  • No mains power with 24 V DC option card

  • LCP stop

Try this solution

Connect the motor and check the service switch

Check if the motor is connected and the connection is not interrupted by a service switch or other device.

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