Please bear with me as I’m totaly new to the CrossFire Pro.
I just finished assembling my new CrossFire Pro with the Razerweld Cut 45 with the THC. I just tried to cut my first file which is a simple square with a circle in the middle that I created in Fusion 360. The first thing I did after loading the G-Code was run a dry run to check the G-Code and that worked as expected.
When I tried to actually cut out the file the THC did it’s thing (probed the sheet then moved the Z axix up a tiny bit) and then nothing, the torch doesn’t fire nor do I get any air flowing out of the torch. I can press the Gas Check button on the Razorweld and get air flowing out of the torch nozzle. I get an error message saying the pierce delay is to short, or too long, or the wiring to the THC port is incorrect. My peirce delay is set to 0.5 seconds as recommend by Langmuire. What I don’t see are any live voltages in the THC Control section of FireControl.
I clicked the TEST button in the THC Control section of FireControl but it failed the test. Meaning when I click the “Torch On” button the torch does not fire. The only thing that happens when I click the “Torch On” button is hearing the relay in the electronics inclosure energize and then de-energized after timing out. I end up in a constant loop in the Test because the torch never fires which means I didn’t the click the “ARC ON” button.
Any ideas?
Here is my setup below:
I performed the ground chech between the USB Port and the machine and found no continuity.
I’m using the machine torch with the Razorweld Cut 45.
I have the machine torch mounted properly (above the torch head)
The air pressure out of the Razorweld is 65 psi on the built-in guage when air is flowing through the nozzle.
I have 120 psi feeding into the Razorweld.
The Torch On/Off connector on the Razorweld is connected to the Tourch On/Off connector on the electronic enclosure.
The 50:1 DIV connector on the Razorweld is connected to the DIV Input on the DIV Box.
The DIV output of the DIV Box is connected to the EXP port on the electronic enclosure (this is wired to the THC Controler inside the electronic enclosure.
What else can I check? I would really like to see this thing work.
Try switching the torch on/off and the divided voltage plugs on the front of the plasma cutter.
The ports on the Razorweld have been reversed on numerous occasions in the past and you can never be sure which is which.
It doesn’t hurt anything for them to be reversed. It just won’t work if they are reversed.
Edit: I see you have the divided voltage plugged into the EXP port. Why not the THC port? Mine doesn’t have an EXP port, but I assume it’s an expansion port for limit switches.
You might try to short across the “torch on/off” wiring pulled from the enclosure. Make sure the cutter is on with air pressure and the torch in a safe position. When you short across if it does not cause the torch to fire there is either a break in the wire, loose connection at the cutter or something wrong with your cutter.
Well leave it to me to screw up my first post on this forum.
The DIV output is connected to the THC port on the eletronic enclosure. I mistakenly said it was connected to the EXP port. I do have the limit switches and they are connected to the EXP port (but they don’t work). Sorry for the error. I couldn’t edit or reply to my post until today.
Later that night I actually found my problem so this post can be flagged as SOLVED.
I found the THC Troubleshooting Guide on this forum and started checking. I was not getting any THC voltage at all. I then checked the torch trigger feeding into the Razorweld and was getting a little over 400 ohms reading. When I checked the output of the electronic enclosure I was reading .001 ohms. I pulled the torch control cable apart and ound a bad solder joint. I re-touched all of the solder joints and low and behold the machine works.
Now if I can get the limit switches to actually work the machine would be 100%. For now I just turned the limit switches off so I could cut my first test piece. Not even sure I’ll even bother with the limit switches. I know a lot of you on the form think limit switches are the devil, you may be right in when it comes to Langmuir.
Thanks for reporting back. Glad you got it figured out.
It took me several hours to get my limit switches working correctly and I had my table working just fine without them for about a year. So my advice to you right now: keep the limit switches turned off in the settings in FireControl until you have everything working correctly. Then turn them on and problem solve what is going on. They throw lots of alerts and alarms that just made me crazy…crazier. There is enough things to learn in the beginning that the limit switches will just not add that much function to your experience.
And you can always edit your own title to mark it “solved.” Just got to the very top of the topic on your first post and you will see the “pencil” appear. Click on it and you can change the title and even change the category of where the topic appears:
