SM-52 Problem with main motor

Discussion in 'Heidelberg Printing Presses' started by Boobo-oobo, Sep 10, 2019.

  1. Boobo-oobo

    Boobo-oobo New Member

    Joined:
    Sep 2019
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    Location:
    Croatia
    Hello. I just found this forum today. Im from Croatia and I'm working on a SM-52-2-P.

    It has a problem with the main drive motor, it will not start. When you try to start the machine, it beeps normally, and then when it should start just the motor brake clicks and disengages but the motor will not spin.

    When it boots up it has some INIT and DIA errors, but I dont know what they mean.

    [​IMG]
    20190910_112301
    by Marko Hreščan, on Flickr

    [​IMG]
    20190910_112327
    by Marko Hreščan, on Flickr

    [​IMG]
    20190910_112337
    by Marko Hreščan, on Flickr

    [​IMG]
    20190910_112414
    by Marko Hreščan, on Flickr


    I did check the encoder, and it works fine. The BLT board had some cold solder joints on X3 connector, but that did not solve the issue. I did try to resolder the connectors on the BLT board, but with no luck.

    Does anyone know what to look for next? Or an explanation to the INIT and DIA errors and where to look for a problem?

    Thanks in advance.
     
  2. CHOCK

    CHOCK Senior Member

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    Location:
    Managua,Nicaragua
    Hi sir :
    please do this:
    MSK reports general fault signal; press stops.

    1)The main switch must be turned off and on again!

    2)Overvoltage in 250V / 540V DC intermediate circuit or voltage
    higher than 48 V DC for Brake,

    3)or Brake Faulty , test for mechanical failure or electrical problem.

    4) Mains voltage phase failure

    5)48V DC voltage outside the tolerance range, for Brake.

    Blessing
    superchock@yandex.com
    Mobile + WhatsApp: + 505 8861 1441
     
  3. Boobo-oobo

    Boobo-oobo New Member

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    Location:
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    Thanks for the help. Will try to test and measure that today.

    The motor brake works OK, mechanically and electrically. When we put the hand crank, you can hear a click from the brake and the machine spins freely by hand.
     
  4. CHOCK

    CHOCK Senior Member

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  5. heroelinka

    heroelinka Member

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    Oct 2019
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    Location:
    Indonesia
    I have the same problem, my photo display on my machine's touch screen, are these numbers good / reasonable or bad?
    I included the picture
     

    Attached Files:

  6. CHOCK

    CHOCK Senior Member

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    Hi sir:
    Was traveling from my country Nicaragua to USA, arrived yesterday for to visit my relatives.
    Sorry for my delay.
    1) If you say that everything is o.k , now
    2) You must test very well the Brake , can be damaged
    3) Test and adjust the HW1 encoder.
    Blessing
    superchock@yandex.com
    Mobile + WhatsApp: + 505 8861 1441
     
  7. heroelinka

    heroelinka Member

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    @ mr. Chock

    thank you for helping me, you are amazingly kind.
    may you always be in good condition and always in the protection of the almighty god.

    I have tested the brakes, the results are good, testing with manual crank control and when the engine is on standby, the results are lightweight and unlocked. but when inching is done the machine responds to the action about to spin but immediately stops. and strangely every time it is turned back by means of manual cranking, the machine can inch briefly then stop again, even able to run properly, but when I try to increase the speed of the engine speed suddenly stops.

    I am very confused about this problem, it's been 7 days this machine can not be used.

    if you have a little free time please guide me to get out of this problem.

    I want to say thank you for your help.

    note:
    this is a problem that befell me.

    https://www.colorprintingforum.com/threads/main-drive-malfunction-help-me-please.20267/
     
  8. CHOCK

    CHOCK Senior Member

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    Location:
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    Hi thank you by his words.

    1) About the brake, the winding is reheating( Not burning;) this is special cases, that occur in the troubleshooting machines.

    However is a hidden problem, since the ONLY the experience give that real conclusion, by that reason i strong recommend you
    that replace the Brake, or Rewinding.

    2) Adjusting the HW1, is the matter that mechanic or the electrician tech, must be in charge. Specially coming from Heidelberg, or some Tech that are familiar-training with Heidelberg Machines, and with the properly Tools, for adjusting .
    Otherwise you must waste :Time + Money .

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

  9. Waqas_zahid

    Waqas_zahid Senior Member

    Joined:
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    Messages:
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    Location:
    Pakistan
    What are the actual errors on the press at the moment? The problem you describe sounds like a problem of the main motor encoder itself, if the press runs once it is cranked then it very likely a problem of the main motor encoder
     
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