Again, better than your original answer, including some important details, but for the full 100%, we want to have a little more detail, such as the boards involved, and the advantages of the vfd systems.
Now, I need to clarify how I’d like you to use the forums. They aren’t to use to keep checking if you have an answer correct now. It’s for you to clear up any topics that you are having trouble understanding once you’ve studied the material in the units.
I know that you have some questions that you received partial credit on that you’re trying to figure out. I think you can mostly do that on your own, as the above two posts have shown.
If you just want me to explain what part of your original answer was correct, you can ask me that via an email.