PDUC Error

Discussion in 'Komori Printing Presses' started by Richie, May 16, 2018.

  1. Richie

    Richie Member

    Joined:
    Feb 2010
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    Location:
    south africa
    Hi guys what causes PDUC 2 & PDUC 1 error on an LS 440. When it gives that error the metering roller starts moving slowly like crawling speed. The error is in and off.
     

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  2. presselectronics

    presselectronics Senior Member

    Joined:
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    Location:
    North America
    Communication problem with DUC system, controllers that convert analog to digital (from unit to the PQC) and digital to analog (from the PQC to the unit). Basically the PQC talks to the DUC controller in the delivery, then every unit all the way to the feeder. Any one of the DUC controllers can cause problems at any/and or all the units. If problem is intermittent, it will be hard to find. If the problem is all the time, then it might be found by bypassing CN1 and CN2 at each DUC, one by one with power off, and then trying to find out what works and where the problem begins.
     
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  3. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,122
    Location:
    Managua,Nicaragua
    Hi sir:
    1) Could be some hesitation in the movement, in the fountain key motor.try to eliminate
    2) or exchange or repair the server printed circuit board, if the problem occurs in all keys
    3) if does in all units exchange or repair the printed board m86 868
    Let me know.
    superchock@yandex.com
    celular+whatsApp:+50588611441
     
  4. Richie

    Richie Member

    Joined:
    Feb 2010
    Messages:
    51
    Location:
    south africa
    Thank you guys for your responses, did bypass and found out that one of the units was faulty it had a poor connection somewhere on the circuit. Got it fixed and we up and running.
     

  5. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
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    1,122
    Location:
    Managua,Nicaragua
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