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At what DC voltage level does the Brake resistor engage in the ATV900 drives?

Published date: 13 September 2019

Issue:
VDC level where the brake resistor is turned on.

Product line:
ATV900, ATV930 Process drives

Environment:
Altivar 900

Cause:
Determine adjustments for roller miller or other high inertia applications

Resolution:
The resistor will engage at 780VDC on the DC bus.  This setpoint is adjustable using the VBR parameter (Brake Level) listed under the Motor Control Menu. 
Factory setting for VBR is 780V

 

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