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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > G0704 CNC Conversion - driver/BOB/Motor wiring woes
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  1. #1

    G0704 CNC Conversion - driver/BOB/Motor wiring woes

    Hello All -

    I recently completed the physical CNC conversion on my G0704. I am running into some troubles getting everything wired correctly. I am trying to just wire up one driver/motor at this time to test and then will do the others.

    Components:

    BOB - CNC4PC C11G - With a Serial to USB (UC100) adapter. Mach 3 sees the UC100 driver fine.

    Unknowns about the BOB:
    Light is on, on it, but is red, not green. Limited documentation means its "disabled", not sure how or why.
    5v is coming from the power supply
    Do I hook anything to the COM or Ground ports on the Output ports side? Looks like the COM ports have 5v on them.
    I have output ports 1 and 2 going to Signal pul+ and dir+ on the KL5056E (not sure if they should be going to the + ports, or the - ports on the KL5056E)
    I connected/jumped the en and 5v ports on the outputs side, as directions said this should "enable" the board.


    KL-5056E Driver
    I matched the 4 wires from the motor to the 4 corresponding high voltage ports per the documentation.
    GRD and V are coming from the power supply


    KL23H2100-50-4BC Motor on Y Axis
    Just matched the 4 wires to corresponding places on KL-5056

    When I turn out power, motor has a light hum to it, so appears to be getting some level of power. No action when attempting to Jog or doing anything with it in Mach3.

    Any thoughts or ideas on troubleshooting would be greatly appreciated, I added a few pictures too.

  2. #2
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    Re: G0704 CNC Conversion - driver/BOB/Motor wiring woes

    Quote Originally Posted by cetagloh454 View Post
    Hello All -

    I recently completed the physical CNC conversion on my G0704. I am running into some troubles getting everything wired correctly. I am trying to just wire up one driver/motor at this time to test and then will do the others.

    Components:

    BOB - CNC4PC C11G - With a Serial to USB (UC100) adapter. Mach 3 sees the UC100 driver fine.

    Unknowns about the BOB:
    Light is on, on it, but is red, not green. Limited documentation means its "disabled", not sure how or why.
    5v is coming from the power supply
    Do I hook anything to the COM or Ground ports on the Output ports side? Looks like the COM ports have 5v on them.
    I have output ports 1 and 2 going to Signal pul+ and dir+ on the KL5056E (not sure if they should be going to the + ports, or the - ports on the KL5056E)
    I connected/jumped the en and 5v ports on the outputs side, as directions said this should "enable" the board.


    KL-5056E Driver
    I matched the 4 wires from the motor to the 4 corresponding high voltage ports per the documentation.
    GRD and V are coming from the power supply


    KL23H2100-50-4BC Motor on Y Axis
    Just matched the 4 wires to corresponding places on KL-5056

    When I turn out power, motor has a light hum to it, so appears to be getting some level of power. No action when attempting to Jog or doing anything with it in Mach3.

    Any thoughts or ideas on troubleshooting would be greatly appreciated, I added a few pictures too.

    Not much detail in the images tbf.
    Manual for that bob:
    https://www.cnc4pc.com/pub/media/pro...r_manual_2.pdf
    There's lot of wiring examples on the bob product page too:
    https://www.cnc4pc.com/c11g-multifun...cnc-board.html

    Typical wiring example (common cathode) from another bob for reference:
    This is using the £5 board I've used for years.



    Whereby: Yellow & green are in the Y axis pul/dir (P4/5)
    Purple is enable (P14 or other output of choice)
    Blue is from the 5v positive
    Red/black are from the larger DC supply to driver such as 24-50v or 24-80v etc depending on driver.

    My question is though. Why the hotchpotch UC100? The 400eth isn't much more $.

    This is the manual from the board I used in the image and may help as a reference to give you an idea.
    https://i.ytimg.com/vi/rcUoUkdcE18/maxresdefault.jpg

  3. #3

    Re: G0704 CNC Conversion - driver/BOB/Motor wiring woes

    Greetings,

    For testing, try disabling the charge pump. I wouldn't recommend running a real machine with it disabled, but for testing it eliminates another variable. IF that's the problem, you can go into the mach set up screen and do the enable and setting for pin17 IIRC.

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