Hi all, I’ve been working on getting my machine up after some downtime and installing a new machine torch. I went to go test the installation of it, and the machine fired like normal and started to cut, although it wasn’t consistent. The first test only cut half the pattern, and I was confused why. Thinking it might be operator error, I started again, and after it got about 10% of the way through, it refused to cut at all. I investigated, and I realized I hadn’t connected the ground clamp to the work piece. Now after connecting it, I’m not getting any voltage at all.
My setup: Crossfire pro, Razorweld 45, THC, machine torch.
Things I have troubleshooted so far:
I was gripping the head in the wrong location. I changed the mount and inspected the head but found no damage.
I did a continuity test between the machine and the USB port; no continuity.
I tested the voltage out of the voltage divider cable attached to the plasma cutter and got no voltage. I don’t have pins small enough to test the port itself.
I attached the cable to the other port on the plasma cutter and got 292 v reading in the software.
Is my port just dead on the plasma cutter? Is there something else I can try or that I’ve overlooked before taking apart the plasma cutter? Looking up the manual for the razorweld 45, there is no mention of these two ports, so I’m not sure where to get good information for them.
I did some more testing and the voltage divider cable itself is fine. It seems like the port is just not giving any voltage, although it was previously. I took off the cover of the plasma cutter and I checked the inner wiring of the two ports; they look correct, and the wires look fine. The board also looked good where the wires connected. I reassembled everything and checked for any loose wires. Not really sure where to go from here, any help is appreciated.
I can’t really tell the ports for “output” that you are using on the VIM box. Make sure you are staying on the “voltage divided” side for both input and output (green outline).
Here are a couple of photos I took four years ago when my divider stopped working. I can’t say whether this matches your situation or offer specifics on the repair, but it looks like I replaced some resistors and got it working again. Hopefully, this helps someone.
Hey ChelanJim, I am definitely staying on the voltage divided side of the box. It’s hard to see in the picture, but the cable is plugged into the div output port.
Hey Holla, love your videos. I don’t think the issue is with the divider box, I think it’s before that, as the cable from the plasma cutter isn’t reading any voltage when I hook up a multimeter to it. I’ll open the box on the divider box and take a look there at least. My last update wasn’t very clear, when I said port isn’t giving any voltage, I meant the port off the plasma cutter.
Ended up being a pretty easy fix. When I bought the machine in 2021, it had come with a direct attach cable for handheld torch (the 2 cords coming out of the plasma cutter). I swapped that for a CPC cable and it fired right up. Feel pretty dumb but at least it was an easy fix.
