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Do I need a braking unit for my ATV930 if I'm connecting a dynamic braking resistor?

Published date: 09 January 2019

Issue:
Do I need a braking unit for my ATV930 if I'm connecting a dynamic braking resistor? 

Product Line:
Altivar 930

Environment:
Where a DB resistor is needed 

Cause:
Does the drive need an additional braking unit?

Resolution:
If your ATV930's part number has a "C" at the end, it does not have an internal braking transistor. It will need an external braking unit installed in order to connect a braking resistor. 

Note: This information only applies the ATV900 drive series. Braking units and resistors cannot be installed on the ATV600 drive series drives. 

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