Roland 305 +L +V +T

Discussion in 'Man Roland Printing Presses' started by Print Service, Dec 19, 2023.

  1. Print Service

    Print Service Member

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    Hi Gents,

    We are getting this error when print on the press "MD: Malfunction in data transfer." The four seven segment display shows "9999". Please see attached pictures.

    Any help and guidance is greatly appreciated. Thanks.
     

    Attached Files:

  2. PWInc

    PWInc Member

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    Sorry typo error, it should read like this.
    We are getting this error when "POWER/ SWITCH ON" the press
    "MD: Malfunction in data transfer." The four seven segment display shows "9999". Please see attached pictures.

    Any help and guidance is greatly appreciated. Thanks.
     
  3. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    Do you turn the machine off and on, on the main drive, does a message appear?
     
  4. Print Service

    Print Service Member

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    Yes, I tried to switch on and off the machine repeatedly but this error MD: Malfunction in data transfer appeared. It's the only error that appeared. I tried to push the button Mode (M) and Up/Down key in the main drive power board to check if I can see other errors but the seven segment display doesn't change, only 9999. I don't know if there's a procedure to go to the Mode key. Thanks.
     
  5. Sandeep kumar

    Sandeep kumar Senior Member

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    Sir,
    I think main board which shows 9999 is faulty
     
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  6. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    Your card is damaged
     
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  7. Print Service

    Print Service Member

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    Hi Daniel, Kumar, fellows

    Is there a way to possibly navigate thru the parameter 159 to see if there are other errors?
    Any other checks/measurements I need to do on the main drive power converter board to confirm it's defective?

    One other info I notice, there are red lights "on" in the computer console underneath beside the power supply.
    Thank you guys.
     
  8. drukman

    drukman Senior Member

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    Par. 159 is for reading errors. Here the reader is dead.
     
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  9. Print Service

    Print Service Member

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    Thank you Drukman for the reply. This means that the power converter board is dead. Anyone who can supply the part? Do I need to enter the parameters once I buy the part or it's a plug and play.
     

    Attached Files:

  10. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    try to repair it friend, we have repaired several
     
  11. Print Service

    Print Service Member

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    What could be the common problem? What am I looking for? Any hints! Power supply, capacitors, thyristors?? Thanks
     
  12. drukman

    drukman Senior Member

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    If you buy a new one, it must be programmed and the speed adjusted.
    I can repair it, but the shipping time to Europe is …….
     
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  13. Asim Shehzad

    Asim Shehzad Senior Member

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    try to check all internal cable plugs, especially the cable at both ends for the main board as marked in the picture.  upload_2023-12-22_10-28-1.png
    or re-plugin them and check the power supply board underneath the main board.
     
  14. PWInc

    PWInc Member

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    I did checked all those flat cables. I also measured +5vdc at the top board where the encoder and rs485 cables are connected although I don't have led lights on H101, 102 and 103.

    I also measured 24vdc at X16. I'll open today the power supply board at the bottom and check the output. Thank you people. Happy Holidays to all.
     
  15. Print Service

    Print Service Member

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    Thanks Druckman. I'll check with the owner how he wants to proceed.
     
  16. Daniel.Sanchez

    Daniel.Sanchez Senior Member

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    Send photo
     
  17. Print Service

    Print Service Member

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    Just an update, I fixed the board field controller and now I don't have error display "9999". I tried to jog today but I got "UWR: Speed not admissible". "UWR: Analog input card is faulty". Where is this card located? Please see attached error display. Can someone please advise what's the next steps I should take? Thank you.
     

    Attached Files:

  18. Print Service

    Print Service Member

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    Additional information I forgot to include. When I jog, the brake released and the main drive turned about 2 degrees then stop. I cleared the error but the same thing happened again. The 7 segment displays doesn't show any error.
     
  19. Asim Shehzad

    Asim Shehzad Senior Member

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    step 1; check field supply voltage when the machine is at a standstill and when you press the button for inching (when the motor turns 2 degrees)
    step 2; check the main motor encoder for its coupling with the motor shaft and any damage/defect.
     

  20. Print Service

    Print Service Member

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    The field supply is 51 vdc at standstill. I didn't measure the voltage during jog.

    I'll check later the encoder coupling. Thanks for the advise.
     
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