Frequently asked questions
What is the DC bus level at which the Brake resistor engages for the ATV312 Drives?
FA281481
28 July 2022
Issue:DC bus level at which the Brake resistor engages for the ATV312 drives
Product line:
ATV312, Altivar 312
Environment:
all
Cause:
n/a
Resolution:
The internal transistor will output to a Brake resistor at the following voltage levels:
For 200-240V drives, the DC bus level is 379V
For 380-480V drives, the DC bus level is 792V
For 575V drives, the DC bus level is 948V