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Question #: 14267

Question: What Relay do I need for the Mach3 usb motion card?

Current Solution

You will need a 24V DC Solid State Relay to accompany the Mach3 USB Motion Card as the outputs on that motion card requires a 24V Power Supply.

Until we start supplying this relay, you can find these relays here:
https://www.mcmaster.com/#relays/=1d535ws

The Mach3 USB Motion card link:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

Additional Information:
Specifically, you will need a relay link this one:
https://www.mcmaster.com/#7170k1/=1d536ko

Additional Information:
This one has an easier method of connecting:
https://www.mcmaster.com/#7266k38/=1d53765

Respond:

Other Possible Solutions to this Question

  • What is the relay coil on the USB motion card for?

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to add information to this solution:
    What is the relay coil on the USB motion card for?

  • How do I connect the outputs on the USB motion card for Mach3?

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to add information to this solution:
    How do I connect the outputs on the USB motion card for Mach3?

  • I need wiring instructions for the ST- USB MOTION CARD

    You can find the wiring diagram for the Mach3 USB card on its product page here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Here is a direct link to the diagram:
    https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

    Click the link to add information to this solution:
    I need wiring instructions for the ST- USB MOTION CARD

  • How do I connect the outputs on the Mach3 USB motion card?

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to add information to this solution:
    How do I connect the outputs on the Mach3 USB motion card?

  • What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card? Are there any videos explaining it's connection to the relay coil? (not quite sure what relay coil is)

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to add information to this solution:
    What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card? Are there any videos explaining it's connection to the relay coil? (not quite sure what relay coil is)

  • I have a 64 bit operating system and the Mach3 usb control board. What do i need to communicate between the two?

    You will need a USB cable to connect the computer and the Mach3 USB. The 64-bit operating system must be Windows and you will need the Mach3 CNC control software installed on the operating system.

    You will need to install the USB driver called RNRMotion.dll. You can find the driver here: https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Move the file to your Mach3 Plugins folder Example: "C:/Users/ProgramFiles/Mach3/Plugins"

    Mach3 will prompt you to select a driver and this is where you can select the "RnRMotionController" and check "Don't ask me again". This will allow your board to communicate with Mach3.

    You will also need the xml file found on this page: https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    On that page, you will need to download the XML Mach3 Config File by right clicking on the link and selecting "save as". Save the Mach3Mill.xml file in your Mach3 root folder.

    That file is the main configuration file for the Mach3 board. It has all of the typical settings that the Mach3 board needs.

    Click the link to add information to this solution:
    I have a 64 bit operating system and the Mach3 usb control board. What do i need to communicate between the two?

  • The mach3 USB card requires 24V, how do I supply this?

    If you are using a spindle with a VFD, there is a 24 volt power supply that will provide the correct power for the V+ and V- on the Mach3 USB. The 12V option is only if you are using the limit switches on that side of the board, but if you are using it to control spindle speed and for the outputs, it's best to use a 24V power supply, or the 24V output on the VFD.

    Additional Information:
    Closed loop

    Click the link to add information to this solution:
    The mach3 USB card requires 24V, how do I supply this?

  • What power supply do you recommend for the spindle and limit switches if I buy the USB Mach3 breakout board?

    Any of the following power supplies will be fine for powering the Mach3 USB controller:
    https://www.buildyourcnc.com/item/24v

    however, the limit switches do not need high current, so the following power supply is sufficient for the task of connecting limit switches:
    https://www.buildyourcnc.com/item/electronicsAndMotors-power-supply-24v-1a-dc

    Click the link to add information to this solution:
    What power supply do you recommend for the spindle and limit switches if I buy the USB Mach3 breakout board?

  • What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card?

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to add information to this solution:
    What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card?

  • Can I add a relay to the Mach3 USB controller?

    Yes, you can add a relay to the Mach3 USB controller. The relay must be a 24V relay on it's input side and be able to be set to active low. I demonstrate this in a video on the following page:
    https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    The video is titled: Mach3 USB Controller Outputs

    Click the link to add information to this solution:
    Can I add a relay to the Mach3 USB controller?

  • I need wiring diagram for motor to driver to usb motion card. I cannot find diagram. I have been unable to get information for a week.
  • How do you install the software for the Mach3 USB controller?

    The Mach3 usb controller/interface has instructions and videos on this page:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    There is a 5 step process on that page to install the plug-in and the configuration xml file that is necessary for the proper functioning of the controller.

    The videos on that page also demonstrate in detail how to install the software, plug-ins, xml file and wiring and testing most of the features of the Mach3 USB interface.

    Hope this helps.

    Additional Information:


    Additional Information:

    Click the link to add information to this solution:
    How do you install the software for the Mach3 USB controller?

  • I purchased your single relay and need to know what wire go s to the signal in

    Hi. The relay that we sell here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-breakout-Relays-relay-board-250V-12A-5V

    Has the same relay as the parallel breakout board:
    https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay

    And contains three terminals: "S", "P" and "P". The "P" is always connected and will be the connection between the "S" or the "O" depending on if you need the connection to be Normally Closed (NC) or Normally Open (NO).

    - Use the "O" if you need the connection from "P" and "O" to be Normally Open, meaning that the circuit will close (be connected) if the relay engages.

    - Use the "S" if you need the connection from "P" and "S" to be Normally Closed, meaning that the circuit will open (be disconnected) if the relay engages.

    Click the link to add information to this solution:
    I purchased your single relay and need to know what wire go s to the signal in

  • I purchased your single relay and need to know what wire go s to the signal in

    Hi. The relay that we sell here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-breakout-Relays-relay-board-250V-12A-5V

    Has the same relay as the parallel breakout board:
    https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay

    And contains three terminals: "S", "P" and "P". The "P" is always connected and will be the connection between the "S" or the "O" depending on if you need the connection to be Normally Closed (NC) or Normally Open (NO).

    - Use the "O" if you need the connection from "P" and "O" to be Normally Open, meaning that the circuit will close (be connected) if the relay engages.

    - Use the "S" if you need the connection from "P" and "S" to be Normally Closed, meaning that the circuit will open (be disconnected) if the relay engages.

    Click the link to add information to this solution:
    I purchased your single relay and need to know what wire go s to the signal in

  • I intend to intall mach3 on Windows 10 OS. Will I need to install the USB Motion Driver RnRMotion.dll? I attempted to download this but it was blocked by Windows 10.

    Yes, Mach3 (the software profram) will work with Windows 7, and windows 10 when coupled with the Mach3 USB interface. If you intend to use the parallel port driver, stick with Windows 7 in 32-bit mode.

    Additional Information:
    Rnrmotion.dll is a dynamic link library which is very similar in function to an executable program, or app. Since a dll is executable, malicious code can be embedded in that type of file, so windows will automatically flag all files of this type. You just need to make sure you are downloading from a trusted source. The emotion.dll file on our site is clean, but still run run windows defender against it to make sure.

    Click the link to add information to this solution:
    I intend to intall mach3 on Windows 10 OS. Will I need to install the USB Motion Driver RnRMotion.dll? I attempted to download this but it was blocked by Windows 10.

  • where can I find wiring instructions for the Mach3 USB controller?

    You can find all of the wiring instructions for the Mach3 USB controller here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Scroll down until you see the videos. The wiring instructions cover wiring all of the axes, setting up the inputs to sense limit switches, setting up the outputs and how to diagnose the outputs, setting up an external relay to control external devices, and setting up spindle speed.

    Click the link to add information to this solution:
    where can I find wiring instructions for the Mach3 USB controller?

  • What interface or breakout board do I need for Mach4?

    You can find the cnc machine interface board here that works with Mach4:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

    This board will work with Mach3 and Mach4. The board is filled with a wealth of options and features, including the ability to connect up to 8 axes (motor drivers), pendant, LCD, many outputs and inputs, separate pins for limit switches , 2 relays, Ethernet and USB interfacing.

    Additional Information:

    Click the link to add information to this solution:
    What interface or breakout board do I need for Mach4?

  • How do I use the outputs on the Mach3 USB controller?

    I created a video to demonstrate how to use the outputs on the Mach3 USB controller. You can find this video on the following page:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Scroll down to the 5th video on that page. The title of the video is: Mach3 USB Controller Outputs

    Click the link to add information to this solution:
    How do I use the outputs on the Mach3 USB controller?

  • I am converting from a Parallel Port to the Mach3 USB. My limit switches can accomodate up to 5VDC and I want to Drive a Relay from one of the outputs. Will my switches work and do I need a 24VDC Relay?

    Yes, the best way to attach a relay to the output of the Mach3 USB board is to use an SSR (Solid State Relay) at the 24 Volt rating. This is the standard supply for this side of the Mach3 USB board.

    Click the link to add information to this solution:
    I am converting from a Parallel Port to the Mach3 USB. My limit switches can accomodate up to 5VDC and I want to Drive a Relay from one of the outputs. Will my switches work and do I need a 24VDC Relay?

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