Hi Macca,

I got your email but thought I'd reply here then others can get some thing from it if needed,

Quote Originally Posted by mrmacca View Post
Do I need to wire on off switch, if I do …how, or can I just plug in without it.
You don't need an On/Off and can just use the Mains switch on the wall but a separate switch is nice to have and simple to fit. Just use any switch rated to handle 240V and break the Live wire or better still a 2 pole switch and break both Live and neutral. Don't break the Earth wire.

On a separate note to be safe you should really have a latching safety circuit built into the E-stop that turns off power to the drives when pressed and won't be allowed to reset until all is safe. The easy way to do this is with a Relay and Momentary button wired in series with the E-stop. If you want to do this just say and I will draw you a circuit showing how.

If you don't have a latching system the moment you turn on power the drives will become active so if say for instance the E-stop was released and UCCNC was running code when turned on the machine will instantly start moving with no clue where it is and will crash.
With a latching system this can't happen also a signal will be sent to the controller saying an E-stop is in place and won't allow UCCNC to Reset.

Quote Originally Posted by mrmacca View Post
Wires coming from L1 AND L2 from the back of VFD where do I locate these.
L1 and L2 are usually the Mains Inputs but without seeing and knowing more about the VFD it's difficult to know or advise safely. Give better pictures

Quote Originally Posted by mrmacca View Post
Is it ok to loop my 5v power supply from my 24v power supply or should I use separate supplies.
Again you need to explain better what your meaning is, if you mean can the power Inputs be joined together then yes that's no problem. If you're talking about the Outputs then you need to explain better what you are trying to do.?