Quote Originally Posted by JAZZCNC View Post
Valeria, It sounds like you have very little experience with electronics so I seriously suggest you get someone with more experience to do this for you.

Your dealing with High voltage and very fiddly connectors and if got wrong it's very easy to damage the VFD and spindle beyond repair.
Yes and potentially do yourself some serious damage. If you're not 100% certain get an electrician to wire this up for you. With mains voltage, it's better to be safe than dead.