Mesa 7i96s Torch on and arc ok problems?

Hi everyone,I’m finishing up my CNC plasma build using a Mesa 7i96s, Spartus ProCut 45PCF, and a THCAD-5 (not yet connected).My issue:
The torch on output (OUT0) from the Mesa won’t trigger the plasma directly.
If I short pin 3 & 4 on the Spartus CNC port manually, the torch fires instantly.
When I run the signal through a relay, it also works fine.
But when I connect the Spartus directly to OUT0+ and OUT0-, (or OUT5) nothing happens — even though the Mesa output LED lights up and I can measure switching.The Arc OK behaves similarly — it only works through a relay. But when i have torch pulse on it stays active. And when cutting a circle is just flashes real quick and torch dies. 
The output LEDs on the Mesa board are about half as bright as the input LEDs.All 0 V lines in my control cabinet go to a common terminal, which is also tied to PE (earth) and the machine frame.
I have 24 V on IN COMMON, and everything else seems correct.Has anyone successfully triggered a Spartus ProCut 45PCF directly from a Mesa 7i96s output (without a relay)?
If so, could you share how you wired OUT0+ / OUT0- relative to the plasma CNC port pins (3–4)?I’ve looked through other wiring diagrams and posts, but haven’t found a clear answer yet.
Any suggestions or example diagrams would be very much appreciated. I will try and make a diagram of mine so you guys can have a look )Thanks!

I would measure the voltage between OUT0+ and OUT- when on to diagnose the issue.

it should  be much less than a volt

If OUT5 is used instead (this is suggested for Plasma systems) the voltage may be higher
but no more than 1 volt or so.

 

The voltage between out4+ and out4- is going down to 0.06v for my torch on when triggered. my Arc ok goes to 0v and input 07. when torch is close to plate the 07 led is bright like the others but still only flashes for a second. And then i get valid arc lost, some seconds later.

OK so the output seems to be working correctly, maybe this is a setup issue, perhaps the arc-ok filtering is insufficient
or there is some other issue with the ARC OK signal causing LinuxCNC to drop torch on.

Sorry for late reply. I've have made a new rebuild of my wiring, and i would appreciate if you guys would check if everything looks correct. I will make a video of the problem if it still there, if my wiring diagram looks right. 

 

It look basically OK but I do not have information on the plasma source pinout