Need Help! Plasma cutting table not working

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Thread: Plasma cutting table not working

  1. #1
    Member Dedede's Avatar
    Join Date
    Jun 2022

    Default Plasma cutting table not working

    I am currently an intern at a company, and one of my tasks is to setup a plasma cutting table that my boss bought at an auction a little while ago
    The table is a Koike Monograph millennium cutter II, and with it we have the KAR CNC terminal, a Powermax1650, and an Hypertherm Sensor PHC (also the torch model is T100M)
    None of the red or yellow indicators are lighting up on the powermax, and the table and terminal work just fine as long as I don't try anything that is supposed to light up the torch (the jog and trial functions are perfectly working)
    The main problem is whenever I start any cutting program, the moment the torch is supposed to light up and start piercing, everything freezes and I get the following error message "MAIN ARC LOST"
    It's also worth noting that the PHC seems to have a few issues as well, when the middle switch is on the manual mode position, the "hold torch position" lights up and I can't move the torch up or down with the right switch
    I'm not sure if this is normal or not but when I press the left switch, it goes down until it hits the plate then it goes up a little bit (as of right now it's the only way of moving on the Z axis)

    I've gone through essentialy all of the documentation we have and I'm out of ideas for anything to try to fix this
    Any kind of help or advice would be very much appreciated

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  2. #2
    Join Date
    Jan 2009

    Default Re: Plasma cutting table not working

    Let's start with the basics because they are often the problem.
    Do you have the ground clamp on the material?
    Do you have enough air. It should be set at something like 80 or so psi and the compressor should be capable of 10 or so cfm.
    In the software, what do you have set as the initial height? For metal up to 1/4 inch you may use 0.06 inches.
    Does the Torch Height Controller show up as connected in the control screen. Is it turned on and properly connected to the control box?
    Main arc lost usually means that one of the above is wrong.
    You may also let us know how thick of metal is, the amperage and the speed of the torch.

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