sakurai472ed11 ke111903

Discussion in '4-Color Offset Presses +' started by AB.Lakshmiganthan, Feb 25, 2020.

  1. AB.Lakshmiganthan

    AB.Lakshmiganthan New Member

    Joined:
    Dec 2017
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    3
    Location:
    india
    Hi My offset machine is getting off automatically while running and after some time it gets on and start running what is the problem . the drive power alone is getting off and after 30 min it is getting on automatically
     
  2. Andrei83

    Andrei83 Member

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    May 2017
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    Location:
    Russia
    Perhaps it is overheating, the thermal relay is turned off. How many degrees do you have in the printing house, the air temperature???
     
  3. AB.Lakshmiganthan

    AB.Lakshmiganthan New Member

    Joined:
    Dec 2017
    Messages:
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    Location:
    india
    its 25 degree
     
  4. Andrei83

    Andrei83 Member

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    May 2017
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    Location:
    Russia
    This is normal, so it's not the temperature.
     

  5. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
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    Location:
    Managua,Nicaragua
    Hi sir i saw your post, normally this machine Has Inverter for the Main Motor
    and Th= Overload Rely as other machines, and Fan Motor for the Main Motor for to Help to the temperature.
    You must test the following:
    1) Measure in The 3 phases whatever Voltages that you are using: 220Vac, or 380Vac, or 400Vac, etc, the Tolerances must NOT go Up or down from 10%, if this voltages Arises or Drop in that tolerance, will Produce Overheating in the TH overload Relay,
    2) you must adjust the prim) YOU Mary in the Main transformer, for to produce a clean Voltage, or call to the Company Utility Supplier of Energy.
    3) You must test the Fan Motor 3 phases if is working, since this motor as I did explained before, help to drop the temperature in the winding motor.
    4) However you must test the Inverter if is o.k since , they have electronic control board, and can be faulty.
    5) The Main motor, can be faulty, by lack of maintenance: lube+bearing+Dust etc, or Overheating winding in the Rotor+Stator by lack of Varnish, Need to repair the motor shop.