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Is Energy Monitoring affected when applying single phase line voltage to an ATV630?

Published date: 01 February 2019

Issue:
Is Energy Monitoring affected when applying single phase line voltage to an ATV630?

Product Line:
Altivar 630 drives

Environment:
All

Cause:
Need details of energy monitoring in single phase environment

Resolution:
Yes, using single phase input voltage will affect energy monitoring.

The energy monitoring functionality is based on nominal current drive with error estimation +/- 5% . 
The problem with single phase input voltage is that we have to derate the drive (3 x Pn). So the margin for error will be much bigger, and so the energy monitoring is far from reality. 
If measuring is needed, an external device would have to be used (like a PowerLogic for example). 
 

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