Inverter Max Efficiency is Irrealistic Error

[BTadd]

Getting an error on an OND file saying Max Efficiency is Irrealistic.

OND file is ABB ULTRA750-TL-OUTD-2-v6. This OND file came directly from manufacturer. The other OND files for this series are working, just this one does not seem to work. Have been in contact with ABB tech and stated that the OND file worked on version 6.3.3 when they ran it.

I am using both 6.3.8 & 6.3.9 versions and it gives the same error on both versions.

Any suggestions on this?

I would send the OND file but uploader doesn't allow .OND file extension to be uploaded. Can change to a different file extension if that is recommended.

Any help on this would be greatly appreciated.

Thank you,

Brian

[André Mermoud]

There is probably some point of the efficiency curve which overcomes the limit.

In the Hidden Parameters, topic "Regulators and converters", you can adjust the "maximum value of the Max. Efficiency".

However the actual value of 99.5% is already very high. I have some difficulties of imagining attaining better performances.