Roland 300 problem

Discussion in 'Man Roland Printing Presses' started by mendietta, Mar 16, 2022.

  1. mendietta

    mendietta Senior Member

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    New informations, machine does not run, no errors on screen, no signal from bell...
    I told them to press normal stop and fast stop button, information appears on screen that buttons are active.
    After that they can run the machine...
     
  2. diegoeze

    diegoeze Member

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    First... you have to check relay k1 k2 in +AX/A343 . Stop halt or stop secure in lestand do not mind that this circuit (k1;k2 in A343 ) are working ... Do you have A 566 bord relays? I suggest you check that too.
    Let us know...
     
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  3. mendietta

    mendietta Senior Member

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    As i wrote before, I am helping them online...
    A566 is changed, that I suspected first. K2 and K2, probably one contact is not working correct... If they don't solve this problem, I must go there and check everything...
     
  4. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    test manually actuated the brake, check the signal LED ax
     
  5. mendietta

    mendietta Senior Member

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    Update...
    I was in printshop but i did not solve the problem...
    Machine boot up, but it does not give the signal(sometimes), in that situation you can run it. I changed signal generator board-same thing...
    Then after reset machine boot and you can hear the signal(with old board). Everything is OK,machine is running, when you press start button or inch button,signal is ok, main contactor is on, you can run it...
    And ater 15 times checking machine stops...
    I press start button, can not hear signal and main drive contactor does not turn on, press again and signal light on start buttons turn off for 3 seconds...
    And ater 5 times presing stop button and start button macine starts normal again...
    Brake switch is OK, auxilary contact on K050 is also OK, signal generator board is new now.
    SPS loop is OK,...
    Costumer will change K1 and K2 on A344 and A343...
     
  6. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    you can measure the signals on a machine that is operational and compare the signals
     
  7. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    I have reviewed a similar problem, there is no error on the screen, the problem is, there was no signal x11.2 A345, the problem is the A566 card
     
  8. mendietta

    mendietta Senior Member

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    Problem was in signal generator board, but the biggest problem was that board that i replaced insted was also bad...
    It was solved with new board,third....
     
    Last edited: Sep 27, 2022

  9. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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