Torch Firing Randomly

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RUMFELT
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Torch Firing Randomly

Post by RUMFELT »

The torch on our machine (Plasmacam Machine Torch, 45 XP) will randomly fire after being initialized and after sporadically after cuts. The firing is not along any path but rather sits stationary and pierces a hole for 5-10 seconds then will stop. No error messages come up, the stop button does not stop the piercing the only way I have found to get the piercing to stop is to cut off Plasmacam control box.

Any help to troubleshoot is helpful. Happy to get on a call or text with ideas.

Thanks,

Garrett - 336-596-8486
weldguy
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Re: Torch Firing Randomly

Post by weldguy »

Well that is odd and sounds like it could be dangerous.

Has this just started to do this or is this machine new to you and your sorting it out?

Any AC tig welding going on in the area when this happens?
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acourtjester
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Re: Torch Firing Randomly

Post by acourtjester »

that sounds like you have an intermittent short between the 2 wires that are used to fire the torch. I would check the cable attached to the back of the XP that goes to the controller. Look for a place where the cable is bent and flexes, or may have been damaged. You can also have the unit turned on and move the cable around to see if it fires.
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rdj357
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Re: Torch Firing Randomly

Post by rdj357 »

Open Machine Diagnostics. The test button on the control pad is likely bad. Look at the screen and it will show the buttons of the controller. None should be yellow when not being pressed. If Test flickers or is yellow then the button is bad. You can order the Control Pad itself (not the whole controller) from PlasmaCAM and instructions to replace are pretty easy to follow in the video manual. Be careful of the little ribbon cable when putting it back in, long needlenose help.

If you're in a pinch to cut and it's messing you up, you can unplug the ribbon cable and leave it off - putting control pad back down on controller. None of the buttons will work except stop and off/on but at least it can cut and not fire randomly.
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I am not affiliated with PlasmaCAM, Inc. in any way. I offer training on their equipment and software. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them are for nominative purposes only and does not imply any affiliation with or endorsement by them.
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Re: Torch Firing Randomly

Post by adbuch »

rdj357 wrote: Tue Oct 03, 2023 12:39 pm Open Machine Diagnostics. The test button on the control pad is likely bad. Look at the screen and it will show the buttons of the controller. None should be yellow when not being pressed. If Test flickers or is yellow then the button is bad. You can order the Control Pad itself (not the whole controller) from PlasmaCAM and instructions to replace are pretty easy to follow in the video manual. Be careful of the little ribbon cable when putting it back in, long needlenose help.

If you're in a pinch to cut and it's messing you up, you can unplug the ribbon cable and leave it off - putting control pad back down on controller. None of the buttons will work except stop and off/on but at least it can cut and not fire randomly.
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