Hello guys.
Lately i have been having more and more issues with torch height. Torch goes up when cutting but does not come down ooor it just goes up by itself loosing the cut. It tends to loose the cut towards the end.Ive cleaned the bronze contact the z axis has and nothing. I noticed it does not do this with 3/16 maybe cuase its flatter.
Ive read other topics and i have the latest file which is 1.10 and 1.31s. Not sure what other info you guys might need. Thanks for any help
Is your IHS being triggered? You’ll see it in Firecontrol.
Assuming this issue suddenly began and it isn’t an EMI issue.
EMI issues normally cause a torch to rise, but is evident pretty early on. If you’ve been cutting awhile (you don’t state if this is your first cut or not), a torch acting up and rising out of nowhere could be the result of your IHS being triggered during cutting.
The light does not turn on when the torch is going up. Just checked right now. Hopefully you mean the ihs light
Anybody got any suggestions?
Have you tried new consumables? Can you post a picture of your nozzle and electrode?
Other than that do a search here for emi and or electrical interference. See if any of those issues could be what’s going on.
Hey @Phillipw Phillip! Sorry for the late response. Looks like my sheet metal are too warped giving me issues. The torch goes up when it needs to but does not come back down as the sheet starts to loose the warped piece.
So there are a few things that can cause this. EMI being one. There a chance you could have a bad connection on the work clamp? It could be maybe that your torch is mounted to high.
Can you give us a description of your setup? Plasma type. How you are pulling voltage for your THC. Pictures can help as well how have your torch mounted. Are you running a laptop? Is it charging? What does the voltage show when it raises?
Ill get you that info as soon as i can. So you are saying its soppose to come back down?
Yes. It’s supposed to maintain a constant height above the metal, based on voltage readings.
Yes. You can run smart voltage where it takes a reading or you can set a target voltage. The THC will raise and lower the torch to maintain that voltage.
The higher the torch raises the higher the voltage the lower the torch the lower the voltage.
thats good to know. So something is off. Ill get the info needed to show you guys. Anything else you guys to need?
Have you cleaned and lubed the Z-axis? If I neglect that, the z will hang up on the way down.
Contact cleaner on the rails and bearing wheels, maybe some fine scotch-brite on the rails if they have build up. Light machine oil on the screw.
Yes i have contact cleaner and lube afterwards and still only goes up. @TC777
Remind me in case I didn’t see what plasma are you using? What is the material thickness? If it’s a hypertherm the voltage is listed in the cut chart.
It’s possible that you are getting unexpected voltage out of the VIM module if SmartV isn’t working on some thicker materials. I should be able to help diagnose what may be happening if you send us in an email to support@langmuirsystems.com.
Voltage changes based on material thickness.
Why not resolve your THC before trying to band-aid things with nominal voltage - I expect nominal voltage would also not work since smartvoltage doesn’t.
Did you ever confirm you do not have an EMI issue? There isn’t much at all that you shared when some of us asked questions. What troubleshooting have you done?
Video of the issue occurring? Should post two, one on a screen record with the other at the table both for the same run.
Let me get a fee videos of the issue and post them. Sorry taking so long just juggle work and this
Lots of people here with tons of experience that are willing to help.
But you’d be surprised what a video and/or picture may capture that otherwise wasn’t shared via text.
