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  1. #1

    Join Date
    Jul 2018
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    85

    Need help with relay on usb card bsmce04-pp bob

    Can anyone please explain to me how to wire a 5v relay to a usb bob. I have done the installation of the RnRmotion.dll ,all limit switches and drivers are working except relay .please see attached pics of relay, bob and diagram

    Thank you in advance


    Sent from my iPhone using Tapatalk

  2. #2
    Community Moderator ger21's Avatar
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    34524

    Re: Need help with relay on usb card bsmce04-pp bob

    Do you have any more info on the relay board, or more pics?

    You should just need to wire one of the outputs from your RnR board, along with 5V and COM.
    Gerry

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  3. #3
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    1986

    Re: Need help with relay on usb card bsmce04-pp bob

    putting together data from various web sites this is as close as I can get to the circuit of the dual relay board

    Click image for larger version. 

Name:	relay board circuit.jpg 
Views:	6 
Size:	51.7 KB 
ID:	404414

    with the jumper JD connecting the two VCC terminals

    Attachment 404410


    on the 4 pin connector
    you will need to connect a 5V supply to the VCC & GND terminals

    the GND needs to be connected to the USB controller GND and output to IN1 (or IN2) on the relay board


    John

    PS

    do you have a link to a manual for the 4 Axis Interface Driver Motion Controller ??

    assuming the part of the board with the micro controller is powered by the USB port

    it's not clear from the photo how the opto-isolated outputs and inputs are powered or
    what the IC next to the four outputs is
    can you read the part number ?


    Attachment 404422

  4. #4
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    1986

    Re: Need help with relay on usb card bsmce04-pp bob

    found a photo on the net that shows the 16 pin IC connected to the outputs is a ULN2003

    Attachment 404430


    pdf data sheet
    Attachment 404436


    terminal DCM (next to input IN1 ) looks like the positive supply for the input & output circuits
    going by the value of the resistors on the pcb it should be OK with +24V

    the negative supply being the common connection for inputs IN1 to IN4 and outputs out1 to out4


    John

  5. #5
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    1986

    Re: Need help with relay on usb card bsmce04-pp bob

    update

    after finding more a detailed view of the board
    this is the input and output connections on the board

    Attachment 404640


    with this information the answer to the original question

    Click image for larger version. 

Name:	relay board connection to motion controller.jpg 
Views:	8 
Size:	100.3 KB 
ID:	404642

    the e-stop or limit switches are connected between the common DCM terminal and one of the 4 inputs (IN1 to IN4)


    the relay board's GND needs to be connected to the motion controller DCM

    one of the motion controller open collector outputs (OUT 1 to OUT 4) needs to connect to
    one of the relay boards inputs (IN 1 or IN 2)



    john

  6. #6

    Re: Need help with relay on usb card bsmce04-pp bob

    hi all

    some body know, how I can connect the limit switch in this board bsmce04-pp, and also I want to connect Diode Laser, which is the correct connection the lase is PWM or TTL

    thanks, AR

  7. #7
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    1986

    Re: Need help with relay on usb card bsmce04-pp bob

    is your laser diode like this ?
    Attachment 418412

    if it is connect the enable to the + supply and
    TTL input to the bsmce04-pp PWM output

    I don't have a detailed manual to know if you can use one of the 4 outputs (output 1 to ouitput 4)

    john

  8. #8

    Re: Need help with relay on usb card bsmce04-pp bob

    hi John good afternoon

    I want to add one laser as the link bellow.

    https://www.ebay.com/itm/15W-Laser-H...E/372196328146

    I am not sure how to connect it in my CNC 6040, the is the board pcb that's it have see attach picture

  9. #9

    Re: Need help with relay on usb card bsmce04-pp bob

    Quote Originally Posted by john-100 View Post
    update

    after finding more a detailed view of the board
    this is the input and output connections on the board

    Attachment 404640


    with this information the answer to the original question

    Click image for larger version. 

Name:	relay board connection to motion controller.jpg 
Views:	8 
Size:	100.3 KB 
ID:	404642

    the e-stop or limit switches are connected between the common DCM terminal and one of the 4 inputs (IN1 to IN4)


    the relay board's GND needs to be connected to the motion controller DCM

    one of the motion controller open collector outputs (OUT 1 to OUT 4) needs to connect to
    one of the relay boards inputs (IN 1 or IN 2)



    john
    Could the +5v from the usb section of the controller be used for the Vcc on the relay? Or is that a bad idea?

  10. #10

    Re: Need help with relay on usb card bsmce04-pp bob

    hi John Good afternoon

    My laser is different it is for TTL and PWM, but I want to know how I need connect it, want to control the intensity directly from my control.

    https://www.ebay.com/itm/15W-Laser-M...Y/282862694217


    thanks, regards.

    Mecanico3020

  11. #11
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    234

    Re: Need help with relay on usb card bsmce04-pp bob

    I know this thread is old but for heavens sake man who taught you how to wire?
    Attached Thumbnails Attached Thumbnails badwiring.jpg  

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