Servo Driver Plasma Retrofit

Here is a more detailed wiring pin out for the hypertherm controller.  However I haven't found anything about if they are activated by a positive voltage or a ground.  This chart says relay contact closure.  With that said, would I be able to just enable the drives with an external switch and relay?

It looks like you connect drive-enable-in to drive-enable-out
to enable the drive. This means the 7I97T's enable outputs
may work, but you would need to determine the polarity,
open circuit voltage, and closed circuit current. These can all be
measured with a DVM.

How do the 7i97t drive enable pins work? Do they supply a voltage?

No, they are isolated optocoupler outputs rated 100 VDC and 50 mA max.
So the enable outputs may be used in place of relay contacts if the ratings
are not exceeded and polarity is observed.

Manual for this machine is online:

veracitytechs.com/docs/MicroEDGE%20Pro%2...018%20Feb%202016.pdf

Thank you, the wiring is making much more sense and less challenging now.  

Im using linuxcnc_2.9.4-amd64.hybrid.iso that I downloaded here.  It installed qtplasmac 2.9.  Is it recommended to install 2.10?

What is the easiest way to configure a 7i97t and a couple thcad2 for plasma?  I dont see 7i97t as an option in pncconf and in mesact there isnt an option for qtplasmac.

I asked chatgpt to create a quick ini for qtplasmac and a 7i97t and it came up with this pretty quick: