CD74 A61 module

Discussion in 'Heidelberg Printing Presses' started by Raf77, Apr 30, 2024.

  1. Raf77

    Raf77 Senior Member

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    Hello everyone.
    We've got a problem with our cd74 2004 cp2000.
    There was warning on screen "coater level not ok" andm Smoke started to come out of the A61 module (see picture). The module is located on coater unit.
    Any idea what can cause it?
     

    Attached Files:

  2. Mathew

    Mathew Senior Member

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    Location:
    Kolding-Denmark
    Hello
    A61 is a 380VAC to 24VDC Power Supply and it can be found in all PUs, Delivery and Feeder. For the begining, disconnect the two plug with blue wires and switch ON the machine. If you see the LED are ON, then there is a short circuit somewhere on coating unit. But if the LEDs are still OFF, the module is broken.

    Good luck
     
  3. Raf77

    Raf77 Senior Member

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    Hi,

    Thanks for your answer.
    It looks like the module is seriously broken (see pictures)
    Can't find out where is shortcut on coater unit. It was working fine and then suddenly started to smoke. No problems at all before this. 20240430_153340.jpg 20240430_152552.jpg 20240430_152539.jpg 20240430_152325.jpg 20240430_153340.jpg 20240430_152552.jpg
     
  4. Mathew

    Mathew Senior Member

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    Yes, it is damaged. Unfortunately it's a common issue with these type and there is no possibility rather changing.
     
  5. Raf77

    Raf77 Senior Member

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    Thank you.
    Just need to order new one, if someone on this forum has one for sale ASAP please let me know
    Thanks
     
  6. Adil

    Adil Senior Member

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    Location:
    Casablanca
    Please give me your HDM module reference , i can send you a new one .
    My whatsapp number +212700552467
     
  7. ashok kumar

    ashok kumar Senior Member

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    Location:
    india
    Hi
    You can you any other +24volt supply (20 amp) and need good electrician to attached the same

    Below machine we have important from Belgium (cd74-6l 2004) and have same type modifications in 3 units.
     

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  8. Raf77

    Raf77 Senior Member

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    Location:
    United Kingdom
    Hi, thanks for replying.
    How did you connect these plugs on this supply?
     

    Attached Files:

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