Hypertherm 45 torch cap fault . How to bypass
Close
Login to Your Account
Results 1 to 4 of 4
  1. #1
    Join Date
    Nov 2007
    Location
    Ontario Canada
    Posts
    28
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    0

    Default Hypertherm 45 torch cap fault . How to bypass

    I have an older Hypertherm 45 (2011) on a CNC plasma table with the proper machine torch. and Lately, I've been getting a torch cap fault in the middle of a job. Tried new consumables but the problem persists. The cutter works fine if I install the hand torch. I suspect a broken wire in the main cable. I am looking for a wiring diagram for the torch, or some way of bypassing this cap sensor. I don't want to buy another torch for this older machine because it just not worth it. I need to keep this thing going until I have the funds for a new machine.
    Thanks for any help.

  2. #2
    Join Date
    Sep 2010
    Location
    Oklahoma City, OK
    Posts
    4,573
    Post Thanks / Like
    Likes (Given)
    790
    Likes (Received)
    1885

    Default

    IF your Pmax45 is like mine, the torch has a small limit switch in the torch head to ensure the cap is properly seated. Knowing this, I think I'd be out there with my DMM tinkering with it. It might take a minute, but it should be pretty easy to identify.

  3. Likes dantech liked this post
  4. #3
    Join Date
    Nov 2007
    Location
    Ontario Canada
    Posts
    28
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    0

    Default

    Thanks Cole! I figured I would ask first. I'm sure it's just a normally open or closed switch, but was concerned that it was some sort of potentiometer that neede to see a certain resistance value.

  5. #4
    Join Date
    Feb 2013
    Location
    Northern califorina, usa
    Posts
    215
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    65

    Default

    If your seeing a Torch cap fault yellow led during a cutting cycle first check that the Shield deflector/retaining cap or similar if using Fine cut consumables is installed correctly, You only want to hand snug the components, basically no tighter then turning the parts between two fingers, you can over hand tighten them very easily. Your machine torch has a Cap sensor torch disable switch built into the Plasma machine torch, there pretty much problem free.
    There are two wires that complete the safety signal back to the plasma generator, you could have an circuit short in one of the feeds as the torch moves during it's cut cycle. What your describing does not sound like a machine interface problem.
    A simple wiggle test of the plasma cable to torch with a meter on the safety cap sensor feed should clear things up.
    The wiring diagram for your power source in on line at Hypertherm's web site.
    The technical support at Hypertherm is great, give them a call


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •