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  1. #1
    Join Date
    Jan 2022
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    6

    Have a cnc controller without PWM

    I have a cnc controller but I can't find the pwm terminal to hook up a laser diode, but in the board there is space that is written 10v please I need help will attach a picture of the China controller. All ideas are welcome

  2. #2
    Join Date
    Jan 2018
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    1516
    Quote Originally Posted by Henryme View Post
    I have a cnc controller but I can't find the pwm terminal to hook up a laser diode, but in the board there is space that is written 10v please I need help will attach a picture of the China controller. All ideas are welcome
    Try this:
    https://drufelcnc.com/doc/DrufelCNC_STB5100_manual.pdf

    Looks exactly the same and shows your 10v pin is the PWM type speed control and the AVI/GND are the analog (0-10) type control.

  3. #3
    Join Date
    Jan 2022
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    6
    [QUOTE=dazp1976;yes they look alike but the laser already have 12v going into it, and the controller has 10v, won't there be issue. I don't know much about electronics and electricals

  4. #4
    Join Date
    Jan 2005
    Posts
    15362

    Re: Have a cnc controller without PWM

    Quote Originally Posted by dazp1976 View Post
    Try this:
    https://drufelcnc.com/doc/DrufelCNC_STB5100_manual.pdf

    Looks exactly the same and shows your 10v pin is the PWM type speed control and the AVI/GND are the analog (0-10) type control.
    The 10v is an input for the PWM to Analog 0-10v converter
    Mactec54

  5. #5
    Join Date
    Jan 2005
    Posts
    15362

    Re: Have a cnc controller without PWM

    Quote Originally Posted by Henryme View Post
    I have a cnc controller but I can't find the pwm terminal to hook up a laser diode, but in the board there is space that is written 10v please I need help will attach a picture of the China controller. All ideas are welcome
    Do you need a PWM output or a 0-10v Analog? AVI & Com is a 0-10v Analog output the 10v is an input for the AVI to work.
    Mactec54

  6. #6
    Join Date
    Jan 2022
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    6
    mactec54, how are you suggesting the laser diode should be connected

  7. #7
    Join Date
    Jan 2005
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    15362

    Re: Have a cnc controller without PWM

    Quote Originally Posted by Henryme View Post
    mactec54, how are you suggesting the laser diode should be connected
    What is the laser requirements, to turn it on??
    Mactec54

  8. #8
    Join Date
    Jun 2005
    Posts
    1723

    Re: Have a cnc controller without PWM

    Go to cnc4pc.com and get the little PWM card that you can wire to your current card, it’s really cheap and works great

    Russ

  9. #9
    Join Date
    Jan 2022
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    6
    @mactec54, all it requires to turn on is 12dcv and a PWM

  10. #10
    Join Date
    Jan 2022
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    6
    @CNCMAN172 please do you have have any particular pwm card in mind.

  11. #11
    Join Date
    Jun 2005
    Posts
    1723

    Cool Re: Have a cnc controller without PWM

    Quote Originally Posted by Henryme View Post
    @CNCMAN172 please do you have have any particular pwm card in mind.
    Here is a simple card, you can get matching cables this will provide the PWM signal required by most spindles, lasers, etc.

    https://www.cnc4pc.com/c41s-pwm-vari...rol-board.html

  12. #12
    Join Date
    Nov 2008
    Posts
    644

    Re: Have a cnc controller without PWM

    I’m confused how this card would control a laser? It’s for spindle speed control.

    This card lets you control your spindle with PWM and direction signals, as if it was an axis motor. It converts the step signal into and an analog (0-10VDC).


    Sent from my iPhone using Tapatalk

  13. #13
    Join Date
    Jan 2005
    Posts
    15362

    Re: Have a cnc controller without PWM

    Quote Originally Posted by CNCMAN172 View Post
    Here is a simple card, you can get matching cables this will provide the PWM signal required by most spindles, lasers, etc.

    https://www.cnc4pc.com/c41s-pwm-vari...rol-board.html
    That is of no use what's so ever, he already has a Breakout Board that can do what this does
    Mactec54

  14. #14
    Join Date
    Jan 2022
    Posts
    6

    Re: Have a cnc controller without PWM

    Thanks to everyone, I Have figure out the wiring to the breakout board.

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