Mazak QT8N with T plus control- Power Help (please)


Results 1 to 3 of 3

Thread: Mazak QT8N with T plus control- Power Help (please)

  1. #1
    Member
    Join Date
    Jun 2013
    Posts
    25
    Downloads
    0
    Uploads
    0

    Default Mazak QT8N with T plus control- Power Help (please)

    Helping someone get a 1994 Mazak up and going again. It was supposedly running a few weeks ago, but you know how that goes. 3 phase power into the machine is good. Green start LED on front of control is lit. Red button is not. In the back cabinet, one of the small power supplies has a red LED on it and measure 24v. The other power supply is not lit up. I believe it receives its power from the main power supply board. This board is located with the other boards in a rack style setup. This board has nothing lit on it. I measured 50 volts going into the board. On the board, it says 100v IN.

    Does anybody have any information such as a power flow control chart? What about an electrical diagram for T-plus control. Where does the power supply board receive its power form?

    Thanks for the help!

    Similar Threads:


  2. #2
    Member
    Join Date
    Jun 2013
    Posts
    25
    Downloads
    0
    Uploads
    0

    Default Re: Mazak QT8N with T plus control- Power Help (please)

    Small update. We were told is was running on 220volts. Pulled the cover off to verify lugs on transformer and I am not really sure what it was set on, but it was not 220v....We have action now. On to the next problem.

    Breaker QF12 trips immediately. Anybody point me in the right direction as to what that belongs to?



  3. #3
    Member
    Join Date
    Jun 2013
    Posts
    25
    Downloads
    0
    Uploads
    0

    Default Re: Mazak QT8N with T plus control- Power Help (please)

    QF12 breaker still pops

    Light on power supply has a red led lit up for AC fail... from what I have read, it can be caused by a few things. Low/High AC voltage....It reads 107 which is within range. Second option is short to ground on 24v power supplies. Voltages on power supplies look fine. Removed output wires from power supply, no change.

    Also, the KM21 main power supply contactor isn't pulled. At what point should that energize?



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Mazak QT8N with T plus control- Power Help (please)

Mazak QT8N with T plus control- Power Help (please)

Mazak QT8N with T plus control- Power Help (please)