Problem with Komori S228

Discussion in 'Komori Printing Presses' started by m0eX, Sep 5, 2022.

  1. m0eX

    m0eX New Member

    Joined:
    Sep 2022
    Messages:
    1
    Location:
    Bosnia and Herzegovina
    I have a problem where my motor doesn't run smooth. My VFD frequency and output current start to change sporadically. I've attached videos of the problem.
    My temporary solution, I'm not sure why it works is that at the right side of VFD holding hair dryer (hot) for about 1 minute, then the problem resolves.
    This got me thinking it might be loose contacts but inspection of VFD didn't show any signs of damage or incorrect soldering. I've sent VFD to repair service as well and they've told me everything is fine, so it must be something else.

    Any ideas what might be causing the problem?

     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    2,852
    Location:
    Managua,Nicaragua
    The motor needs maintenance, possible Reheating winding, need to repair it!

    By that reason sometime, the motor run well, and other NOT, please take out the motor, and go to the electrical shop, for inspection, and maintenance.

    Of course, you must sure, the VHF, is o.k NOT loose connections, or dry+colder joint solder, inspect very well, the electronic specialist, must be carefully! to doing this inspection.

     
Loading...