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Longevity Forcecut 62i

Discussion forum for Everlast & Longevity plasma cutters
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Rhyja67
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Longevity Forcecut 62i

Post by Rhyja67 » Fri Aug 20, 2021 12:05 pm

Hi I recently purchased a Longevity Forcecut 62i, The website said this unit was cnc compatible, however i am trying to attach a torch height controller to this machine it does not have a builtin cnc port and it does not appear to have a voltage divider in it or. Now that said i purchased a THC3T-02 THC wich comes with a voltage divider that can be attached to raw voltage. This link is a youtube video how someone attached it The following link is to the user manual http://robot3t.com/wp-content/uploads/2 ... R-V1.1.pdf. My question is with the manual the setup says that the + (Work) and the - is the torch. My machine has a different torch attachment (i have an ipt60i 4 pin torch ) which states that the high voltage "work" cable is on the torch. I tried to ask Longevity and they don't have the information i need. Any Advice would be greatly appreciated.

Thanks

adbuch
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Re: Longevity Forcecut 62i

Post by adbuch » Fri Aug 20, 2021 9:34 pm

I don't know about your specific model, but for the Hypertherm Powermax series and 45xp the work lead is positive, and the torch electrode is negative.
David

Rhyja67
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Re: Longevity Forcecut 62i

Post by Rhyja67 » Sat Aug 21, 2021 12:08 pm

Thank you Sir. From everything i've gathered that is the same here. Pulling this kind of information without the manufactures help can sometimes be a challenge.

adbuch
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Re: Longevity Forcecut 62i

Post by adbuch » Sat Aug 21, 2021 5:42 pm

Happy to help! I hope you get it going - Good Luck!!
David

cuttinparts
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Re: Longevity Forcecut 62i

Post by cuttinparts » Mon Aug 23, 2021 12:43 pm

What if you used a multi meter and measured the arc voltage. If the polarity is backwards my meter will read something like -118volts rather than 118volts. This may help to sort out if the Longevity is different from any of the others but i suspect it is not. Good luck with your project.

tcaudle
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Re: Longevity Forcecut 62i

Post by tcaudle » Sun Sep 05, 2021 11:11 pm

Virtually all plasma cutters including the imports (use positive workclamp and negative electrode cutting voltage Some models have a CPC "port" that has a way to fire the torch, get the arc ok and a divided voltage. Some have "raw voltage " as one of the sets of pins. It NOT! its "impedance limited" meaning you can read it with a meter but a THC loads it down to almost zero. You have to get across the true Raw volts on the wires that go tot he workclamp and the electrode in the torch head. If your THC will read raw volts (up to 300 on some machines) then it has to be connected there. As far as the interface tot he software and to be able to do things like turn the THC on and off and specific times or interface with actual motion to auto correct on corners and turns that is a different story. here is a lto to Torch Height Control besides just read the volts and moving up and down. I amsure you will work it out .

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