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Stepper Motors / Drives > will this be an issue?
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  1. #1
    Join Date
    Mar 2007
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    will this be an issue?

    hI all ive got these motors

    http://www.motioncontrolproducts.com...per-motors.pdf

    it says the wires are 20awg each and as you know u pair them so they share the load no heres me question i have some 1.00m2 (24awg 5 core lapp cable that im going to use so im going to cut the wires that are on the motors now as they are to short any way and solder these on instead but as the are a single 24awg wire haveing to cope with x2 20awg wires normaly will it be a problem?.

    p.s the extra core from my 5 core lapp cable will be an earth back to me driver box etc.

    cheers

  2. #2
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    Mar 2007
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    please any one..... probably a very silly question hehe but im waiting to cut them and solder.

    thanks in advance.

  3. #3
    Join Date
    Jun 2007
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    Maintain gauge

    Your added wires, should have the same or greater cross sectional area.
    I don't think a data cable will be up to feeding that motor.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  4. #4
    Join Date
    Dec 2003
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    Personally I do not use anything smaller than 16g for motors regardless of how small the motor is, and those are fairly hefty motors!.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
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    Mar 2007
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    im thick i still dont know what the answer is hehe the wires are 24awg 1.0mm2?.
    so am i good to go?.

  6. #6
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    When the wires become as thick as you (oops ) all will be OK.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  7. #7
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    398
    Quote Originally Posted by neilw20 View Post
    When the wires become as thick as you (oops ) all will be OK.
    :P no one is as thick as me.

    so just to help me understand why its ok as the wires on the motors at the moment are 20awg each then they get joined together but then some knob (me) will cut them short and attach a single 24awg wire down to the drivers so its having to cope with more on one wire?.

  8. #8
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    Jun 2007
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    Am, I thick?

    I thought 24 was small than 20. As Al_The_Man says use 16 gauge.
    Yo already have your answer. 24 is too small.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  9. #9
    Join Date
    Mar 2007
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    damn it this stuff was alot of moneys cant send it back now

    http://uk.rs-online.com/web/search/s...duct&R=0141362

  10. #10
    Join Date
    Dec 2003
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    If you bought a reel of it, double it up
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  11. #11
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    ummmm very good point looks a mess but will work.

  12. #12
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    Jun 2007
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    OK

    Now we see the cable it is OK.
    The wires are bigger than that on the stepper motor aren't they?
    I believe so.
    Now I see the motor has 8 wires. Your cable has 4.
    Are you using parallel or serial.
    You are not only going to cut some wires, but must figure which ones to join.
    Either way that wire is OK for 6 amps.
    Cut the wires after you figure how you are going to join them.

    Don't forget to plan out how the heatshrink will be used. The soldered wires need support so they don't break in service (where the solder is the wire can't flex. The soldered area must be 100% prevented from flexing.

    Stop getting confused by AWG and square millimeters. AWG is a gauge and you have to refer to tables for the sizes and ratings. At least with square mm it all makes better sense.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  13. #13
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    Mar 2007
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    hi this is the motor

    http://www.motioncontrolproducts.com...per-motors.pdf

    and thats how i wired em red/blue,yellow/black,white/brown,green/orange

  14. #14
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    Fast!

    That was quick. Parallel by the look of things. I think we have a time warp.

  15. #15
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    hehe i was waiting for a reply i was gutted that the wire was no good then u come back and make my day i would kiss u if i could :O.

    yes ive had them all running here on me desk they go very well but not with that lapp cable yet so now i know its good i will start it tomorrow as its 10:30pm and im tired hehe.

    edit/p.s

    thank u for all the help as i understand im not the only one here who needs it oh and allso putting up with my terrible spelling and grammer.

  16. #16
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    Mar 2007
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    well ive been looking into it abit more just to be on the safe side and found this

    http://www.eland.co.uk/documents/YY%...l%20Cables.pdf

    very helpfull mines the

    offlex lapp cable 110yy
    5 core
    1.00mm2

    im well looking forward to tomorrow now so i can wire it all up im allso glad i dont have to double up the cables now as it wouldent fit me sockets o got for them.

    cheers and night all.

  17. #17
    Join Date
    Jan 2006
    Posts
    628
    http://en.wikipedia.org/wiki/American_wire_gauge

    It looks like your 1.0mm2 wires are equivalent to a US 17GA. So, that looks like a good choice. Are they shielded? It says there is an earth conductor, which I guessing is the same.

    Steve

  18. #18
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    Jun 2007
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    The shield.

    If you earth the shield, earth it at the electronics end, and leave the motor end of the shield unterminated.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  19. #19
    Join Date
    Mar 2007
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    398
    [QUOTE=stk2008;666868]hi yes one core is for earth back to driver box no shield.

    so connect wire in the driver box on me common earth and then on motor case.

    sorry hit wrong button.

  20. #20
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    Dec 2003
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    Quote Originally Posted by stk2008 View Post

    so connect wire in the driver box on me common earth and then on motor case.
    That is correct.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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