I have the Crossfire Pro with a Everlast 82i plasma cutter and I am having problems with the THC wiring. First of all it seems like this is nothing new, Everlast units are known to have problems with their CNC port.
First way I had it was using the CNC port. I figured I would try it this way, even though it is known issue, as I ordered my Everlast unit when it was on back order. So this machine is fresh off the boat and figured maybe this issue was fixed. Nope. I could get a torch speed reading, but THC live was reading 0v. So I went through the troubleshooting guide, did some forum reading and decided Raw voltage hookup was the only way.
Here’s what I did…
This is the board you work with inside the Everlast unit. Connections on the right go to your CNC plug. Connections on your left are the “Raw” connections.
Step 1 is I wired the torch On/Off. This is labeled start/stop in my Everlast manual and is pins 1 and 2. I did wire these using the right side of the board connections and this is what the two wires look like…
I put these on connectors to be able to unplug them if needed like so. This goes to the Torch On/Off connector which goes into the Langmuir electronics unit.
Next are the Raw voltage connections. I used the required Raw voltage banana connectors and wired them into the 2 wires off of the left side of the board like so. Red banana connector is positive Raw voltage and goes to clamp which is the red wire inside the Everlast unit. Black banana connector is negative Raw voltage and goes to the torch which is the black wire inside the Everlast unit.
Now to confirm the wiring, I did a continuity test from the black banana connector (torch) to the actual torch connector on the front of the Everlast unit and results came back successful.
I then connected the output cable to PV Output.
SO, all that being said and done, I do have torch speed and I can get an arc when running a file, but it stops after 1 inch and says lost arc. When I watch the THC live voltage I get 0 and it does not change. Can anybody see what I might have wrong?