Hay Thanks for all your info (HELP) but I'm going with a RS485 connection instead of using the MX4660 for spindle control. It will do what I want it to do, at least that what he said on the CNCnutz Episode 147
and I only need one twisted pair of wires from the RS485 to the VFD do some config on each of the units and I should be up and running. I will only use the MX4660 for the Axis.
The RS485 should be here on Friday. I will down load the Plugin from this web site
https://www.cncnutz.com/2017/05/mach...trol-with.html. This plugin is only use for the Huanyang inverter
I will let you know how it turns out