[graupnerhansen]

Hello dear forum,

Can someone please confirm if my understanding of this diagram is correct?

I have a VFD DELTA VFD015M21A that i want to run single phase 220V 50hz.


Original 3 phase diagram from the installation manual:






My understanding of how to wire it with single phase.





Is my understanding and diagram correct?
Please let me know your thoughts!

Thank you so much for your help!

BR from Henrik

[A_Camera]

Rfom the manual:

If it is single phase model, please select any of the two input power terminals in main circuit power.

So your diagram is right regarding your VFD, the only thing which is not clear in your diagram is the earth. The earth connections on both ends of your schematic VFD should be on the same bar inside the VFD and that should be the same as the earth in your home AC plug, coming from your power cable to the VFD. BTW, you have 230V in Denmark...

[graupnerhansen]

Hi again, thank you for your answer.

I made a new diagram to explain my understanding.

Am I right in the understanding of the VFD grounding in this new diagram:?




BR. from Henrik

[mactec54]

Hi again, thank you for your answer.

I made a new diagram to explain my understanding.

Am I right in the understanding of the VFD grounding in this new diagram:?




BR. from Henrik

Yes this diagram is correct, the Heat sink of the VFD Drive is Ground, so it does not matter which Ground terminal you use for your Ground connections, if the VFD is mounted to a metal Ground Plane in your cabinet, then it would be working the same as the first diagram, except it would not have or need the extra Ground wire you added on the output of the VFD