SEK Error

Discussion in 'Heidelberg Printing Presses' started by ashok kumar, May 10, 2019.

  1. ashok kumar

    ashok kumar Member

    Joined:
    Nov 2017
    Messages:
    18
    Location:
    india
    Hi
    We are facing a problem in a machine sm74-4( cp2000) year 2003
    during running machine suddenly stop and give the error of SEK .( Dyn error Sek1 -ffbf)
    In dig.input-out / SEK all input goes zero .
    we had check teh SEK/ Nt85/Sak/ found working on other machine .
    some time it gives the dyn error( sEAk2 - fbff) for this we check teh ribbon cable in +12 lvt and change with pu4 still same error . we aslo swap the EAK card but error comes in EAK2 position only
    can any body help
     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,376
    Location:
    Managua,Nicaragua
    Hi sir:

    SEK: Safety–relevant components (e.g. emergency stop
    switches, guards, limit switches) are connected to
    the 120 inputs,from this electronic Board.

    TheREK2 evaluates the signals and decides when an
    emergency stop is to be triggered.

    I strong recommend you if you can get the REK2 from the machine, where did you test the SEK, and working good,
    In that way you will know, if you have : a) some emergency device is faulty condition or b) The REK2 electronic board in your machine is faulty.

    Blessing
    superchock@yandex.com
    Mobile+WhatsApp:+505 8861 1441
     
  3. ashok kumar

    ashok kumar Member

    Joined:
    Nov 2017
    Messages:
    18
    Location:
    india

    Dear Sir
    we had check the follwoing thing
    1) SEK,ESK,SAK on running machine and run for 1 hour
    2) we fix all the card again in machine machine boots ok
    3) put the machine in scrolling , machine scroll well for 30 minutes
    4) machine passed the safety test
    5) than we run the machine it give there within in 1-2 minutes ( dyn S-SEk FFBE)
    kindly suggest
     

  4. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,376
    Location:
    Managua,Nicaragua
    Hi:
    FLIFLOP in SEK himself and was not retivado by REK2 within the specified time .
    Resolder very well the SEK board for cold+ dry solder, and clean it, the same with Edge connector, otherwise the electronic board is defective
    Blessing
    superchock@yandex.com
    Mobile+WhatsApp:+505 8861 1441
     
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