Hey guys, not sure if I'm suppose to post this in this forum, but this is where I hang out mostly.
I'm a mechanical tinkerer and electrical is not something that comes natural to me. But I've done a fair amount of electrical work and feel confident that I can learn and do it correctly.
I'm getting ready to hook up my Chinese 220v VFD 2.2kw. I have a g540 and there is a good amount of documentation how to hook it up to control the vfd. I'm not sure I will have my mach 3 controlling it initially, but it's nice to know that it's doable.
My question is, being that my machine is far from my main breaker, i don't want to walk over to it every time I have to turn the vfd off and on. I want to install a relay. I don't mind having a normal light switch that would activate the relay for the vfd to come on. My question is, when you run 220v through a relay, do you put both of the black and red wire through the relay, or is one enough? I imagine the white wire can go straight through since that is the common. The ground wire (my house has 4 leads) would go to my cabinet and ground out the spindle as well.
Thanks!