Parallel port cable

Discussion in 'Tech Support - SignTorch' started by Eagle6052, 9/13/16.

  1. Eagle6052

    Eagle6052 registered

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    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
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    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Hello tech support,
    I have a plasmacam machine
    When the computer is out in the general shed area there are no problems.
    I put the computer inside a steel dust and water proof cabinet.
    I get communication or signal interference errors.
    My research tells me it's the parallel port cable.
    I tried to purchase a heavy duty shielded parallel port cable but could not find one in Australia.

    Your help would be great.
    No one seems to be able to solve this issue.

    Thanks

    Darryl
     
  2. SignTorch

    SignTorch Artist

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    Location:
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    that's a tough one

    if the cable works outside the cabinet then I'd tend to think it's good - most cables are grounded and shielded - if possible just try any other cable

    Is the case earth grounded - Are the computer and machine power outlets properly earth grounded - Are those on the same cicuit breaker

    Is there any power wires routed near the cable - or wrapped around the cable

    Do the com errors occur all the time or only when running the machine or only when cutting
     
  3. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    The error only happens when comp is in cabinet.
    Yes everything is earthed.
    Power is all on same circuit
    Have tried different cables
    Same issue
    It's driving me nuts lol
    No one else has managed to solve it either.
    Not even plasmacam USA
     
  4. camo1280

    camo1280 member

    Hello Darryl,

    Can you first check that your cable is not running alongside any other cables........even if only close. This is the most common way noise is transmitted. Running your PP cable at right angles to othercabling should eliminate this......although that doesnt make a very tidy cabinet!! Can you also post some detail on the cable you are using, I'm assuming male to male, length etc.

    I'll see what I can come up with.
    Cheers from another ozzy.
     
  5. camo1280

    camo1280 member

    Can you post a picture of the cabinet outside and inside
    Cheers
     
  6. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Yes can do
    On my way home today
    Will post ASAP
    Thanks
    Darryl
     
  7. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Sorry for delay.

    Here are pictures
    It was an Industrial Built Cabinet.
    240 Volt Power runs down C-Section to Power Points.
    If you try and run through a Back Up UPS it comes up with Communication errors as well.
    This is a real mystery and no one has been able to solve.

    By the way thanks for your help and assistance.

    Darryl

    20160917_122935. 20160917_123014. 20160917_123041.
     
  8. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Every hardware has a seperate Power Point not through a power board

    Plasma is 15 amp circuit.

    It was suggested that we run the Plasmacam unit through a transformer.

    EG: 240 volts A/C Australian to 110 Volts A/C USA as these machines are all made in the USA.

    Before going to this wanted to exhaust all other avenues as it is expensive.

    Darryl
     
  9. SignTorch

    SignTorch Artist

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    Location:
    Vidor, TX
    how long is that parallel cable? - have you tried a shorter one
     
  10. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    3m tried 1.8m same issue.
    Now building a wooden cabinet

    Thanks

    Darryl
     
  11. camo1280

    camo1280 member

    Without adding to costly trials, can you make sure the actual cabinet is grounded/earthed as well. The cabinet can/could be acting like an oversized aerial......... I could also organise shielding to wrap your port cable if you wanted.

    :debug: :)
     
  12. camo1280

    camo1280 member

    I might add that this should be a common ground. ie. Connect it to the same earth as the power supply for the equipment in the cabinet.
     
  13. Eagle6052

    Eagle6052 registered

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    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Thanks

    Yes the cabinet is earthed.

    I wrapped the cable in heavy duty alfoil.

    Do you have special cable shielding ?

    Will see what happens once wooden cabinet is finnished

    Darryl
     
  14. camo1280

    camo1280 member

    Good. Keep us posted,

    Cheers
    Cameron
     
  15. Eagle6052

    Eagle6052 registered

    Roles:
    • Plasma CuttingPlasma Cutting, Hobby / PersonalHobby / Personal, Just Getting StartedJust Getting Started
    Brands:
    • PlasmacamPlasmacam
    Location:
    Port Pirie South Australia
    Thanks
     

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