Technical FAQs

Ask a Question

ATV71 with NLP

Issue:
ATV71 with NLP: The input voltages are correct at LI. L2 and L3 and the DC bus measured correct. 

Product Line:
ATV61/71

Environment:
NLP on ATV61/71 drives

Cause:
Wiring error

Resolution:
Found a customer that still had the drive wired wrong.  Wired the inputs to T1, T2 and T3 and outputs to L1, L2 and L3.  Appears the drive has protection to prevention damage to the drive, but will get NLP.
Was this helpful?
What can we do to improve the information ?