SM52 init-test BLT-CON 7DFB TTK Defective Failure Warning Signal

Discussion in 'Heidelberg Printing Presses' started by riko, Feb 16, 2019.

  1. riko

    riko Member

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    hi i have a problem in init-test BLT-CON 7DFB
    i decode the error and say: TTK DEFECTIVE.FAILURE WARNING SIGNAL
    please help me
     
  2. CHOCK

    CHOCK Senior Member

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    Hi Sir:
    Please review this:
    TTK defective . Failure warning signal.
    *Check:
    Short circuit cable from the frame.
    *Check:
    Voltage below 250V DC intermediate circuit ( DC 185V )
     
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  3. riko

    riko Member

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    what can I do? can you explain to me. Thank you
     
  4. CHOCK

    CHOCK Senior Member

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    hi
    you can measure the+48Vdc , and test the fuse F2, for TTK.
    This board is very complicated, since has many Transistors, if You do not have the experience in Electronic, look for some help since
    there are can be a good chance for dry +cold solder. Reheating with Station Work.
    2) short circuit, you can measure with a good DMM, all the cables arriving to the frame(control box)
    3) measure to the motor input 250Vdc motor DC brushless
     
  5. riko

    riko Member

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    Hi Sir:
    I checked +48v and the fuse and are ok index6.jpg
     
  6. CHOCK

    CHOCK Senior Member

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    Hi sir
    Great that you measure +48Vdc and fuse.
    However that is Not indicative the board is o.k , as I did explain you before.
    Try to reheating attached is there dry+cold joint problem in electronic boards.
    Otherwise you must replace by new one.
    Please do the next steps.
     

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  7. junker1984

    junker1984 Senior Member

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    Is it possible the one of the connections in the main drive motor junction box is loose, or broken? Is this a new installation?
     
  8. riko

    riko Member

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    hi sir
    it was in working condition a few months ago
    and now not work the motor, give it the error 7dfb, i checked it all,
    even though we have taken it for control in germany the "Brushless power part BLT" and
    said it is functional.
     
    Last edited: Feb 24, 2019
  9. CHOCK

    CHOCK Senior Member

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    Dear Sir:
    Hope you are well.
    Please explain me, because you said is was working ???
    Now ? Not Working?? BLT is o.k or NOT??
    Did you do my steps ??
     
  10. riko

    riko Member

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    I do your steps
    but I did not find any problem.
    We sent BLT a few months ago in Germany and
    they said that is ok!!!!
    But now the error is the same.
     
  11. CHOCK

    CHOCK Senior Member

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    Sir:
    I am confuse about your statements.
    You said that BLT was o.k , after Error , now Working ?
    few months ago was o.k and Now ? and the error the same??
    I recommend you: 1) if you can take the board to another machine. or 2) if some colleague have another BLT and test it in your machine?3) or call to the Heidelberg Representative for Tech Electronic.
    Since that i did indicate the TTL can be defective ?? the fact that has +48Vdc and fuse o.k Is NOT indicative that electronic board is o.k .
    By that reason that the only way that you have for to fix it.
    Sorry.
     
  12. riko

    riko Member

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    Hello Sir.
    I have replaced the 3v battery from the main board of the computer because i have found that the battery it was very low voltage about 0.5v after the (KVT board come back from Germany). Have this situation created the error mentioned above!? Maybe the battery have reset something on the motherboard of the computer!! Because i have sent for a inspecting and control the entire group of the electronic board (KVT) to Germany technician and thy says the (KVT) is all OK!! Before i have sent to Germany the (KVT) the error was the same
    Regards
     
  13. CHOCK

    CHOCK Senior Member

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    The only reset is Cpu or MicroP
    see what number is your CPU, look for Schematic Pin for to find the RST(reset) in most recently Generation is called MSCLR.
    With over 64....Pins or more. vs Ground.
    Attached some Sample how to do it.
     
  14. CHOCK

    CHOCK Senior Member

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    Please do it carefully:
    Test the 1) Reset 2) Power supply Vcc 3) Clokc in MHZ
     

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  15. riko

    riko Member

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    HI SIR
    NOW THE ERROR IN INI-TEST IS BLT_CON 5BFC: Interrupt frame circuit; no current flow .
     
    Last edited: Mar 9, 2019
  16. CHOCK

    CHOCK Senior Member

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    Hi Good day
    I do not understand, what do you mean?
    Did you make the 1) Reset for Cpu or MicroP 2) Test the power supply for Cpu or MicroP are in tolerance? 3) Test the Clock in Mhz according at what type of Cpu is there( based in the Architecture of CPU)?
     
  17. riko

    riko Member

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    Hello Sir
    yes i have measure the voltage of cpu =3.3V and i have make the reset (i do not make test of the clock), after that appared the error BLT_CON 5BFC
     
  18. CHOCK

    CHOCK Senior Member

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    ok according with that code
    Not error code is that number:5BFC, please test the Clock
    if the clock is defective or Not working : the Cpu is will NOT working. Remember
    Cpu is the brain of the entire Machine , if is defective Nothing will work o.k.
    However if the clock is o.k , you must test the power supply
    from BLT: L1+L2+L4 see if there are input and if are o.k, measure the output from U+V+W if there are NOT output your module is defective(IGBT's defective are other components like Thyristor).
     
  19. CHOCK

    CHOCK Senior Member

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    Hi sir:

    Attached is there the data sheet of IGBT GE25n100D

    Hope you can find it.

    Let me know, sincerely

    Blessing
     

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  20. fatjondev

    fatjondev Member

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    Thank you.
     
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