qtplasmac arc okay issue

I am unable to get a successful arc okay signal from my primeweld cut60 plasma cutter to qtplasmac. I wired the arc okay signal using 24v power from the 7i76e board and sinking it to one of the inputs just like a limit switch. When I go to cut out a part qtplasmac fires three times and says no arc okay signal was found. Is anyones wiring of arc okay different than mine, can anybody please share how you connected your arc okay signal? Thank you all for amazing help

I would check the 7I76E input you use for ARCOK  in halshow
to see if it switches as expected when the torch is fired.

Note that ARCOK signals from relay contacts may need a larger
load current than the 7I76E inputs sink (wetting current) so you
may need to add an external resistor (say 1K 2W) from the 7I76E
input to GND to provide this current.
 

I would take my 24v power direct from the power supply and loop it though the cnc port back to your input.
This is where adding a BUS bar for both +ve and -ve power makes it easy to wire up.
The Mesa commx2 is ideal and very compact.