The relay is indeed working! I opened up the machine and checked if I got a signal when activating with a magnet and it worked. I then went back to the cnc plasma and tested it and checked all the cables and everything is OK with the wires. I run some shapes in LinuxCNC but I will not get any signal when I waits for arc ok (not on 7i96 card and not I LinuxCNC). If I then ignore Arc ok then I will get a signal( both on 7i96 card and in plasmac (shows arc ok). I can’t figure out what’s different. Can my pierce height be to high? Can I have a delay some and when the plasma fire and burn away the material the contact is broken ? I really can’t understand why it behaves differently when I ignore arc ok.
