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Question about Proma THC

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Probird
Posts: 6
Joined: Sun Nov 26, 2017 10:03 am

Question about Proma THC

Postby Probird » Mon Jan 01, 2018 6:44 pm

Hooked up to machine control by manufacturer of table,I hooked to my 45xp to give it a try, and started a cut on a basic 19 inch circle. When the torch fired and started to move the torch started going up and never stopped, aborted the cut when torch stopped firing, but still moving up and around the cut.

What should I check in Mach and sheetcam to start the search for why?

Thanks for any suggestions.

djreiswig
Posts: 175
Joined: Thu Nov 19, 2015 10:02 pm

Re: Question about Proma THC

Postby djreiswig » Mon Jan 01, 2018 8:28 pm

What was the torch voltage doing? You may have the THC up and THC down ports/ pins reversed so it is traveling the opposite direction from what it expects.

Probird
Posts: 6
Joined: Sun Nov 26, 2017 10:03 am

Re: Question about Proma THC

Postby Probird » Mon Jan 01, 2018 10:43 pm

I will hook back up tomorrow and do a test cut again. So, I should start the cycle and watch the thc voltage?
Where are these ports/pins? In the mach3 software?

Thanks again

djreiswig
Posts: 175
Joined: Thu Nov 19, 2015 10:02 pm

Re: Question about Proma THC

Postby djreiswig » Mon Jan 01, 2018 10:59 pm

Yes, the ports/pins settings are in Mach3.
If the voltage is going higher than the setpoint, the THC should be moving down. If it is moving up instead then the voltage will continue to climb as the torch moves further from the material causing the THC to try and move down more, but if the direction is reversed it will actually move up more worsening the problem.

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acourtjester
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Re: Question about Proma THC

Postby acourtjester » Tue Jan 02, 2018 7:29 am

Look in the ports and pins menu under input signals swap the up and down pins number there.
If you run the test function on the Proma and look in the diagnostic page in Mach 3 there are lights to show up and down signal inputs. These should match the up down light on the Proma. I hope you have the Proma 150 not the SD :(
pins.jpg

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