Heidelberg SM 74 - ink fountain motor is not running in production run

Discussion in 'Heidelberg Printing Presses' started by Kumar Anand, Feb 11, 2019.

  1. Kumar Anand

    Kumar Anand New Member

    Joined:
    Feb 2019
    Messages:
    3
    Location:
    India
    Hi ,

    We have 5 colour Heidelberg SM 74 -( SM 74 - 5 +L ), Serial no -C623058, 1998. ink fountain motor of printing unit 1st is moving manually by pressing button but not moving automatically in production run. All other 4 unit are running well.
    Please help to solve this problem.

    thanks
     

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  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,340
    Location:
    Managua,Nicaragua
    Hi sir:
    Please do this test:
    1)Normally this servo-motors work with +24Vdc, look in 1rst unit,
    Examine socket or connector
    for contamination and clean with contacts cleaner contacts. Reseat any loose components such as scoketed ICs) . Reseat the boards and power up.

    2) If everything is o.k Please incherchange any Motor working good in the other units, in the 1rst Unit, if the problem is fix it , you know is the motor.
    3) If not fix it, interchange the Board SSM from some units working good, and if the problem fix it, you know is the Board( repair or replaced).Edge connectors are a common source of problems. Power down the system and remove the PC boards. Examine the edge connector
    However let me know what Cptronic are using Modular? Compact? Cpc1-01 or 1-04 etc?
    Let me know
    Blessing
    superchock@yandex.com
    Mobile+WhatsApp:+505 8861 1441
     
  3. Kumar Anand

    Kumar Anand New Member

    Joined:
    Feb 2019
    Messages:
    3
    Location:
    India
    Sir, thanks for excellent technical reply . We checked 1st unit motor to 2nd unit and found 1st unit motor is working properly with 2nd unit connection . We replaced board also but problem is still same . We will do rest as your reply today. Thanks
     
  4. Kumar Anand

    Kumar Anand New Member

    Joined:
    Feb 2019
    Messages:
    3
    Location:
    India
    we are using CPC - Type - 1-04
     

  5. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,340
    Location:
    Managua,Nicaragua
    Hi sir:
    Please test the power Supply in First Unit:since the motor work fine in the second unit.
    Not power supply is there to the control board for the motor. Look loose wires, connector corroded, bad contacts, pins bent,etc
    Let me know, use the schematic diagrams properly.The LED will be LIT, indicating there are power supply +12Vdc, otherwise test the fuse or c. breake respectively.
    Blessing
    superchock@yandex.com
    Mobile+WhatsApp:+505 8861 1441
     
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