Build Thread: Ramsay CNC Plasma Question

[OceanFab]

I connected two wires with lose ends to Out4, which I have never connected to, for experiment.
I am not turning Out4 on through the controller.
When I force NC (led on) and test for resistance, I get none, which makes sense.
When I force NO (led off) and test for resistance, I still get none, which, to me, makes no sense.
Am I not comprehending something?
For the Output board, all the lights are green when it is connected.
So looks like bad I/O board unless there is a way to turn them red, as in the acorn install manual.

[Joey]

If the Acorn's Output L.E.D's are working but the Relay board's Led does not match the output change then it does sound like the Relay board is cooked.

I doubt the Ribbon cable is the issue, but it should be tested to make sure there's breaks

Next step is to replace the Relay board.

[OceanFab]

The new relay board is in, but the lights are all green and not corresponding to the H10, which shows all red.