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Kbac-27d

Discussion in 'Grinders' started by Griff, Nov 14, 2018.

  1. Robert scott

    Robert scott New Member

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  2. Robert scott

    Robert scott New Member

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    Thats what i thought too
     
  3. dancom

    dancom Dust Maker Best Shop Tool

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    Looks like everything is good in the wiring. Maybe check that that the connector CON3 is seated ok as I believe it powers the LED board on the door.
     
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  4. dancom

    dancom Dust Maker Best Shop Tool

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    When all is powered, if you flip the switch to START, does the motor chirp, or whine or anything?
     
  5. dancom

    dancom Dust Maker Best Shop Tool

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    I noticed that you are using the FWD/COM/REV lines for the rotation control. Ensure COM is going to the center terminal of the FWD/REV switch.
     
  6. Robert scott

    Robert scott New Member

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    Ya you bet Thanks Dan. Ill check the com3 tomorrow. And check all the jumpers incase something isnt totally seated.
     
  7. dancom

    dancom Dust Maker Best Shop Tool

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    OK Good luck!
    If you can't get it running, give KB a call. They have techs that can give you a few checks over the phone and offer a go/no-go for you.

    Wiring looks great by the way. Are you an electrician?

    Dan
     
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  8. Robert scott

    Robert scott New Member

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    Nope. Does nothing at all
     
  9. Robert scott

    Robert scott New Member

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    Thanks. No. Welder by trade.
     
  10. Griff

    Griff Active Member

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    [​IMG]

    [​IMG]
    [​IMG]
     
    Last edited: Jun 3, 2020
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  11. Griff

    Griff Active Member

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    Thought it might help to match everything up to mine. Check the Jumper positions and all that on the VFD internals.

    Inside Wiring

    10/3 wire Motor to VFD
    10/2 wire attached to a 230v 50 Amp plug and 50 Amp receptacle
    Main panel 10/2 wire connecting a 30Amp breaker to the receptacle and plug

    Forward - Stop - Reverse Wiring

    Forward: Yellow Striped Wire
    COM: Green Striped Wire
    Reverse: Red Striped Wire

    Motor is a 2HP WEG (3HP motors need a KBAC 29D and 1-1.5hp a KBAC 24D)

    The motor wiring is set to the low voltage, in this case the 230v. (High is 460v)

    T4 T5 T6 are wired together

    T1 T7 Phase One Wire / Black wired together

    T2 T8 Phase Two Wire / Red wired together

    T3 T9 Neutral / White wired together

    [​IMG]

    My 1hp Westinghouse now attached to my KBAC-24D was exactly the same numbers and wired identically, just didn’t have a ‘T’ in front.

    Hope this helps man, if you need another photo or close up on something, let me know!

    Image below this is actually a Video, click on it and it should take you to my Flickr page which is public. It’s a quick running video, shows you the Power and Status light to check against yours. Also right at the beginning, turn the volume up, you can hear the Whine Dan was mentioning.
    [​IMG]IMG_0085 by Griff, on Flickr
     
    Last edited: Jun 3, 2020
  12. John Noon

    John Noon Well-Known Member

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    There is a note in the manual to the effect hook up power and give it a day or so . without the status ready light lite nothing should happen
     
  13. dancom

    dancom Dust Maker Best Shop Tool

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    In reference to what John mentioned they want to make sure that the DC bus capacitors are exercised a bit before operating the motor. They get "lazy" during long periods of storage. With my KBAC I just powered it up and away she went.

    Robert has no power light coming on, even though he's got power to L1 and L2, jumpers in the correct position etc. Weird.

    Dan
     
  14. Robert scott

    Robert scott New Member

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    Well i figured it out. Works awesome. Had a revelation today. Stupid me didnt have the breaker in the panel over both legs. Duh. Oh well. Thanks for your guys input. Now its time to hog some steel.
     
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  15. dancom

    dancom Dust Maker Best Shop Tool

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    So you had the same line on L1 and L2?

    Looks good man!

    Dan
     
  16. Robert scott

    Robert scott New Member

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    20 amp breaker was not in right location of panel there is only two positions that give u 220. I didn't have it correct. Moved and all good
     
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