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ATV61: Is there a way to monitor or read the DC bus on the drive HMI?

Issue:
ATV61: Is there a way to monitor or read the DC bus on the drive HMI?

Product Line:
Altivar 61/71  ATV61 ATV71

Environment:
All

Cause:
Limited access to terminals

Resolution
There are no monitoring options for reading the DC Bus from the drive HMI. 
In the monitor menu it will display "Mains Voltage". 
To calculate the DC Bus voltage: 
If you multiply this value by 1.414 (sq root of 2) the result will be the value of the DC bus. 
However, the drive does a calculation with the DC bus voltage to determine the mains voltage (line supply). 
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