I got this unit from Amazon almost a year ago Amazon.com
I’m just now getting my Crossfire Pro up and running and I’m at the point of wiring in the torch control. I cannot get the torch to fire via the CNC control port in the back of the Cut53N. From what I can tell when pins 2 & 3 are shorted together, the torch should fire. It does not. When I first turn on the plasma cutter, it fires for about 1 second. I am running a machine torch on this. The hand torch works fine when I do freehand stuff.
Unfortunately, the company appears to have disappeared from Amazon. The listings are there but all products are “unavailable”. I wish I had figured out how to test the CNC torch firing when I first got it.
1 and 2, I believe, are the pins. Never heard of that brand, but I live in a cave most of the time.
It’s made in India, as far as I can tell. I also cannot find any CNC plug layout except for one thread on Google. This guy doesn’t know what he is doing, either. Sorry, I couldn’t help. But 1 and 2 are the trigger pins on every other one I have ever seen.
So the problem turns out to be the CNC plasma torch Amazon.com
The connector that came with the CNC torch has 1 & 2 jumpered together at the connector. Then when you connect 2 & 3 the torch fires. I couldn’t find any reason for 1&2 to be connnected together.
I hooked the hand torch back up and can fire it from the Firecontrol software.
Something that is odd is the CNC torch fires for a couple of seconds when I first turn on the machine, the hand torch does not do that. Tomorrow I will have to look at the wiring for the CNC torch and see if something is miss-pinned.
Can someone explain to me the wires in a torch? There is the bigger wire and air hose that carries the current and air plus a ground wire for the pilot arc. Then I assume there are two wires for the trigger on a hand torch, when they are shorted together, then that tells the machine to fire. The CNC torch has two more wires, what do they do?
The additional wires could be for the Ohmic contact with the plate of steel…part of an IHS (initial height sensing.) The Langmuir IHS uses the contact switch in the Z-axis and does not use the Ohmic system.
I know this is not what you want to hear. Please put it on eBay and buy a quality plasma cutter. It’s like buying a new Mercedes with a lawnmower engine. Not trying to be an ass, cause God knows I am. I am just trying to save you from typing every day.
After taking apart the hand torch I see there are two wires that get shorted together when the nozzle is screwed together and two wires that are shorted by the trigger.
The CNC torch has the same two wires that get shorted by the nozzle, however they are wired to the switch inputs rather than the nozzel present (I don’t know what to call it) input. So the CNC torch was mis wired at the plug. At least that is my current theory. I’ll dig out my soldering iron move the wire to the other two pins of the plug and see what happens.
A machine torch does not need trigger wires. The triggering happens inside the machine.
The “parts in place” wires are needed on most plasma cutters or they won’t fire. Some torches don’t have parts in place switches, so the wires get spliced together to bypass that safety feature.
You said yours fires when you power it on. That seems to indicate that the wires for the parts in place switch are attached to the trigger pins. That also indicates that the machine doesn’t need the parts in place signal to work.
I compared the parts in place wires with my hand torch and determined they were on the wrong pins. However it now will only fire for a couple of seconds. I put the hand torch in and the torch control does fire it for the length of the cut. I cannot figure out why the machine torch stops after a couple of seconds. The air does keep flowing, I believe, beyond the post cut setting.
It turns out I didn’t have enough air to run the machine torch. I am putting the table together in my garage just to get it up and running before moving it out to my workshop with the big air compressor.
So I had 2 problems, the machine torch was not wired correctly and I did not have enough air with the little compressor in the garage.
