Need Help! Newbie problem-wiring in spindle motor


Results 1 to 13 of 13

Thread: Newbie problem-wiring in spindle motor

  1. #1
    Member ChrisMO's Avatar
    Join Date
    Oct 2019
    Posts
    5
    Downloads
    0
    Uploads
    0

    Default Newbie problem-wiring in spindle motor

    Hi guys,

    As the title suggest I am very new to CNC, and feel a bit out of depth in attempting to solve this problem.
    Any help would be very much appreciated.

    I have inherited a CNC milling machine that had a dead spindle motor. Everything else for the cnc was wired up except for the spindle motor, so I'm not sure what and where to connect it to.
    Being new to cnc I don't have much experience with cnc machines or electrical systems, I am worried if I wire it incorrectly I will blow something up.

    I have attached some photos. The red square is where i think it should be wired in, however the motor only has 3 wires and there are 4 points remaining.

    Again, any help is very much appreciated,

    thanks in advance,
    Christopher

    Similar Threads:
    Attached Thumbnails Attached Thumbnails Newbie problem-wiring in spindle motor-picsart_11-16-03-16-35-1-jpg   Newbie problem-wiring in spindle motor-img_20191116_145730350-jpg   Newbie problem-wiring in spindle motor-img_20191116_145626526-jpg   Newbie problem-wiring in spindle motor-1-3-jpg  



  2. #2
    Member
    Join Date
    Dec 2012
    Location
    England
    Posts
    7
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    Hi Christopher
    The terminals where you think the motor should be wired are wired from a stepper driver and the motor on your mill appears to be a brushed dc motor so wont go there , If the three wires come directly off the motor then you need a control board like a KBIC which would have been on the mill originally,it may be that the previous owner had intended to change the brushed motor for a large stepper motor and removed the control box .
    I cant tell from the pictures but if the control box is still on the mill then the three wires just need a plug top to provide power and the motor can be run separately from the cnc controller.
    I hope this helps
    Regards
    Dave



  3. #3
    Member
    Join Date
    Dec 2005
    Location
    madagascar
    Posts
    354
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    I don't know enough to answer your question. But until you get a proper answer, go to the manufacturer of each component of your machine and download and save each spec sheet, user manual, etc.

    The documents may come in handy in the future and there is NO GUARANTEE they will be available forever.

    Look them over, you may find sample wiring schematics included that may help people here help you. If there is a part number anywhere, download the specs.

    And just so you know, you have a nice machine there, use it well.



  4. #4
    Member rcheli's Avatar
    Join Date
    Nov 2005
    Location
    USA
    Posts
    175
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    I have the same mill. It is a Sieg X3. I got mine from Harbor Freight. The motor control board is located inside the column. There is an access panel on the back. The board is know as an XMT board. The potentiometer on the side of the mill is connected to terminals P1,P2,P3. Be careful with wires going to these terminals. While the voltage between P1 & P3 will measure about 12 volt the voltage between those terminals and ground in at mains level. 125 volts in my case. If you short these to ground it will blow the board. I did that by accident once and had to have the board repaired. In my case I was using a Mesa card to control my mill and it has an isolated simulated potentiometer in which I connected the P1,P2,P3 terminals to. Whatever you connected these terminals to must be isolated.

    You can find some information on this guy's site.

    MINI LATHE - MILL BOARD REPAIR SERVICE



  5. #5
    Member rcheli's Avatar
    Join Date
    Nov 2005
    Location
    USA
    Posts
    175
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    I also found this. It may be of help.

    Attached Files Attached Files


  6. #6
    Member
    Join Date
    Jan 2018
    Location
    United Kingdom
    Posts
    326
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    I would say the ones in the red square are there for an optional 4th axis.
    Reckon it needs a speed control board as suggested earlier.
    What's that larger box on the end of the rail next to the red square?



  7. #7
    Member ChrisMO's Avatar
    Join Date
    Oct 2019
    Posts
    5
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    Hi guys,

    Thank you all so much for help, really appreciated.

    dazp1976, it says "industrial power supply" on it

    I have been investigating with the great information you've given me.

    here are some pictures of the control panel you've been mentioning.

    Attached Thumbnails Attached Thumbnails Newbie problem-wiring in spindle motor-img_20191117_201841519-jpg   Newbie problem-wiring in spindle motor-img_20191117_201846690-jpg   Newbie problem-wiring in spindle motor-img_20191117_201904609-1-jpg  


  8. #8
    Member ChrisMO's Avatar
    Join Date
    Oct 2019
    Posts
    5
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    have been looking around the internet noticed a photo of a complete unit (wiring).

    saw that it had wires plugged into were mine did not.

    Could this be where the motor get plugged in?

    To me it looks like a possibility, but I am a bit cautious due to my lack of experience- don't want to blow anything up!

    attached is a photo of the complete unit and mine.

    Cheers,
    Christopher

    Attached Thumbnails Attached Thumbnails Newbie problem-wiring in spindle motor-img_20191117_201841519-jpg   Newbie problem-wiring in spindle motor-fignoggle_x3wirestop-jpg  


  9. #9
    Member
    Join Date
    Dec 2012
    Location
    England
    Posts
    7
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    Hi Christopher
    The last two pictures are of the forward and reverse switch, the unit above that appears to be the potentiometer and the one below is I think the on off switch but it is hard to tell.
    The motor would have been wired into the forward and reverse switch at some point , if you have some way of testing dc voltage you could power up the mill and test the two terminals on the forward reverse switch that correspond to the two on your downloaded picture ie the black and white cables with the yellow tags,you would be looking for 0-180volts dc as you adjust the potentiometer, however if as you say you have little experience with electrics I would HIGHLY recommend getting an electrician to do this .
    Good luck

    Dave.



  10. #10
    Member
    Join Date
    Jan 2018
    Location
    United Kingdom
    Posts
    326
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    My feeling is that it was never connected in the first place. Previous user ran the axis cnc and the spindle from the manual potentiometer.
    No real signs of any on/off or speed voltage connections being fitted to the breakout board.




  11. #11
    Member ChrisMO's Avatar
    Join Date
    Oct 2019
    Posts
    5
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    thanks so much guys!

    your help is very much appreciated!

    Will be contacting an electrician soon.


    Cheers,
    Christopher



  12. #12
    Member
    Join Date
    Dec 2012
    Location
    England
    Posts
    7
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    Hi Christopher
    Any updates on the mill?
    Regards
    Dave



  13. #13
    Member ChrisMO's Avatar
    Join Date
    Oct 2019
    Posts
    5
    Downloads
    0
    Uploads
    0

    Default Re: Newbie problem-wiring in spindle motor

    got it sorted just the other day


    https://photos.google.com/share/AF1Q...F1SFZ0MDdpMXdB


    trying to get used to using mach 3, so i can start making some stuff



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

Newbie problem-wiring in spindle motor

Newbie problem-wiring in spindle motor

Newbie problem-wiring in spindle motor