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IndustryArena Forum > MetalWorking Machines > Haas Machines > Haas Mills > Checking DC Bus voltage on MagneTek drive
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  1. #1
    Join Date
    Mar 2010
    Posts
    1852

    Checking DC Bus voltage on MagneTek drive

    I have a spindle drive on my 97 Haas VF-2 that may be bad, it's a Magnetek GPD 515. I have the manual and it says to check the bus voltage at display U1-07, but I can't seem to get to that display. I found U1-01 thru U1-06 but then it goes to some other place rather than U1-07. I need to check the voltage before sending out for repair.

    Thanks is advance-----Mike
    Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28

  2. #2
    Join Date
    Mar 2010
    Posts
    1852

    Re: Checking DC Bus voltage on MagneTek drive

    Found the terminals on the drive unit. (4 and 5 from the left) Voltage is good, so off for repair.

    Mike
    Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28

  3. #3
    Join Date
    Mar 2010
    Posts
    1852

    Re: Checking DC Bus voltage on MagneTek drive

    I sent my unit to Zaritron, LLC on Monday and had it back and installed on the machine by Thursday afternoon. Highly recommend Zaritron, LLC in Illinois.

    Thanks---Mike
    Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28

  4. #4
    Join Date
    Mar 2015
    Posts
    10

    Re: Checking DC Bus voltage on MagneTek drive

    Quote Originally Posted by Machineit View Post
    I sent my unit to Zaritron, LLC on Monday and had it back and installed on the machine by Thursday afternoon. Highly recommend Zaritron, LLC in Illinois.

    Thanks---Mike
    Thanks for the source. I assume this was to fix a 123 alarm? Issues during spindle accel or decel? Or something else?

  5. #5
    Join Date
    Mar 2010
    Posts
    1852

    Re: Checking DC Bus voltage on MagneTek drive

    Yes, it was 123 I believe. Spindle Drive Failure. Drive showed DC Buss Undervoltage. In the end, the spindle would not even try to turn, it would just alarm out. I check out is site more and he works on all drives and circuits it looks like.

    Mike
    Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28

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