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What can cause an ASF or angle error on the ATV630 and ATV930 Process drives?

Published date: 25 September 2018

Issue:
What can cause an ASF or angle error on the ATV630 and ATV930 Process drives?

Product Line:
ATV630 and ATV930 Process drives

Environment:
All 

Cause:
For synchronous motors , the wrong speed loop setting when the reference goes to zero.

Resolution:
Verify the speed loop parameters
Verify the motor phases and the maximum current allowed by the drive. 

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