Yes I understand but we seem to be going around and around instead of forward, you are dealing with an industrial device VFD Drive and it has to be treated as such so all wiring must comply it does not matter if it is for a Hobby or a manufacturing plant all electrical wiring needs to comply for your own safety and everyone around you that may come in contact with your machine
Not all that you see on hobby sites and videos are correct, the basics don't change some are good to look at but not to copy !