I would not recommend slaving an axis using the method of taking an additional axis from the USB interface. Instead, wire both drivers to a single axis on the USB interface. This will insure perfect signal output to both drivers. If you requre the motors to spin in opposite directions, simply wire one of the motors to the driver reversing the coil A and B connections, or use a hex inverter (https://www.buildyourcnc.com/tutorials/Tutorial-Two-Motors-Spinning-Oppositely-On-Single-Axis).

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I purchased a USB Breakout board, motors and drivers, paid for CNC USB Controller Software and I CAN NOT "Slave" an axis, but there is an option to do that. The moment I connect USB Breakout Board "Slave" option becomes shaded and I can no longer select it (becomes not functional). What is going on? Need help asap. Thanks

This video should provide enough guidance to understand the PWM signal on the Mach3 USB controller:

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[575] Hello, I'm wondering if you can provide advice how to wire this USB board where for spindle I would like to use chinese servo motor and driver (TD3) - speed control mode. Especially how to connect - AVI, ACM and 10V (24V is clear). I am still not sure how to power on and off spindle itself. Thank you in advance. Vaclav

Identify the Control Signals: First, determine which control signals from the DB25 interface card are used for spindle speed control. Typically, these are PWM (Pulse Width Modulation) signals or analog voltage signals.

VFD Configuration: Your VFD should be configured to accept the type of control signal your DB25 card provides. This involves setting parameters in the VFD that correspond to the type of input signal it will receive for speed control.

Wiring: Connect the appropriate output pins from the DB25 card to the input terminals on the VFD. This usually involves connecting the PWM or analog output to the corresponding input on the VFD. Make sure to consult the manuals for both your VFD and interface card for specific wiring details.

UCCNC Settings: Configure UCCNC to output the correct type of signal (PWM or analog) that matches your VFD's configuration. This is done through the software's spindle setup section.

Test and Adjust: Run some tests to ensure that the spindle speed is being correctly controlled by UCCNC. You might need to tweak settings in either the VFD or UCCNC for optimal performance.

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HEY ! I HAVE PURCHASED A VFD WITH MATCHING SPINDLE 1.5KW AND CONTROL PROGRAM UCCNC. MY INTERFACE CARD IS DB25, THE QUESTION HOW DO CONNECT TO DB25 SO THAT CAN SPEED UCCNC? SINCERELY "CNC BEGINNERS"

Identify the Control Signals: First, determine which control signals from the DB25 interface card are used for spindle speed control. Typically, these are PWM (Pulse Width Modulation) signals or analog voltage signals.

VFD Configuration: Your VFD should be configured to accept the type of control signal your DB25 card provides. This involves setting parameters in the VFD that correspond to the type of input signal it will receive for speed control.

Wiring: Connect the appropriate output pins from the DB25 card to the input terminals on the VFD. This usually involves connecting the PWM or analog output to the corresponding input on the VFD. Make sure to consult the manuals for both your VFD and interface card for specific wiring details.

UCCNC Settings: Configure UCCNC to output the correct type of signal (PWM or analog) that matches your VFD's configuration. This is done through the software's spindle setup section.

Test and Adjust: Run some tests to ensure that the spindle speed is being correctly controlled by UCCNC. You might need to tweak settings in either the VFD or UCCNC for optimal performance.

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Hey ! I have purchased a VFD with matching spindle 1.5kW and control program UCCNC. And my interface card is DB25, the question is how do I connect the VFD to DB25 so that I can control the speed with UCCNC? Sincerely "cnc beginners"

The use of the hex inverter in the application to invert a direction signal to have a motor run in the reverse directions is relatively simple.

First, go to this link and look at the chip diagram:
https://www.buildyourcnc.com/item/electronicsAndMotors-hex-inverter-breakout-newbiehack-integrated_circuits-hex-inverter

Connect 5V from the USB interface tothe VCC pin. The pin on the keyboard jog header can be used. Connect the GND pin from the USB interface to the GND pin on the hex inverter. Connect the CW terminal from the USB interface to the 1A pin on the hex inverter. Connect the 1Y pin from the hex inverter to the driver.

Additional Information:
I got a question??? I am a dummy when it comes to cnc. I got 6040 1500kw water cold engraver 3 axis from china. I can not get anything out of them pertaining help they keep telling me the same thing over and over and over and I'm doing it and send them pictures that I know. Anyway email me a wiring diagram for the PRT 1500 watt spindle motor control box and has the emergency stop on and off switch manual PC and of course yhe screanm fultonsbusiness@gmail.com

Additional Information:
I got a question??? I am a dummy when it comes to cnc. I got 6040 1500kw water cold engraver 3 axis from china. I can not get anything out of them pertaining help they keep telling me the same thing over and over and over and I'm doing it and send them pictures that I know. Anyway email me a wiring diagram for the PRT 1500 watt spindle motor control box and has the emergency stop on and off switch manual PC and of course yhe screanm fultonsbusiness@gmail.com

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Is there a wiring diagram for hooking up your hex inverter between your USB breakout board and the controller?

You have the ability to designate the 4th axis, commonly known as the A-axis, for rotary indexing operations when using a Mach3 USB controller.

To achieve this in Mach3, you'll need to:

Open the Mach3 software.
Navigate to "Config" and then to "Ports and Pins."
Go to the "Motor Outputs" tab.
Enable the A-axis and assign the respective Step and Direction pins.
Save your settings and exit the "Ports and Pins" dialog.
To calibrate the A-axis, go to "Settings" and use the "Set Steps Per Unit" option.

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[575] Does this board support indexing on mach3 turn? Planning to use it on a lathe and will do threading jobs

Planet CNC has the option to turn off these outputs on your USB board. Under the File/settings/Pins. You will have Spindle (M3,M4,M5) Coolant (M7,M8,M9) as available output pins. On the drop down tabs for these output pins you will have this option ( --- ), if selected it will turn of that output pin in your board and you will get not voltage change in the pin.

Additional Information:
Cannot activate output in mkx

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On the USB controller I am unable to get voltage from the Mist relay block on the board. The Flood and Spindle produce a voltage change correctly. Is there a setting I am missing?

This controller does not have an encoder input for the spindle. The controller can output a PWM signal which causes the spindle VFD to spin at a specific RPM. That RPM is shown in Mach3 as long as the configuration has been applied properly. You can also calibrate the RPM of the spindle to match the RPM shown in Mach3 with the use of a tachometer and adjust the configuration in Mach3.

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[575] How connect one spindle encoder on this White Eagle Mach3 board ????

Dealing with our USB BoB, the potentiometer that will be used in the key jog, is a 5V, 5k - 10k Ohm potentiometer.

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I am building a cnc mill using your USB controller and i would like to know what is the specification of potentiometer used for adjusting manual axis jog speed

There are many ways to wire an emergency stop switch. The simplest, and arguably the most certain, way is to wire the switch into the incoming power so that throwing the switch kills all power to every part of the machine. Here is a diagram showing how a customer wired such a switch on their blackTooth laser which you could adapt to your needs. http://www.buildyourtools.com/phpBB3/viewtopic.php?f=12&t=4872

Alternatively, you could use an input pin on your USB board. The wiring would depend on whether and how you might be using limit switches (single or multiple switches; normally open or normally closed). Our website datasheet for the USB board is at https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/ and shows how to configure the switches for each set up. If you use this method, you'd essentially wire the e-stop as a limit switch.

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I recently purchased 3 axis electronics with the USB controller board. I'm trying to install an E-stop switch. Where do I connect that on the controller board?

There are many ways to wire an emergency stop switch. The simplest, and arguably the most certain, way is to wire the switch into the incoming power so that throwing the switch kills all power to every part of the machine. Here is a diagram showing how a customer wired such a switch on their blackTooth laser which you could adapt to your needs. http://www.buildyourtools.com/phpBB3/viewtopic.php?f=12&t=4872

Alternatively, you could use an input pin on your USB board. The wiring would depend on whether and how you might be using limit switches (single or multiple switches; normally open or normally closed). Our website datasheet for the USB board is at https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/ and shows how to configure the switches for each set up. If you use this method, you'd essentially wire the e-stop as a limit switch.

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I recently purchased 3 axis electronics with the USB controller board. I'm trying to install an E-stop switch. Where do I connect that on the controller board?

Yes, you can connect a THC, Torch Height Controller, with the Mach3 USB controller. The THC uses the inputs to determine if the z axis needs to move up or down according to the arc of the plasma torch. The THC connects its outputs to the inputs of the controller so the controller will be informed of the states of the plasma torch.

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I am interested in using the Mach3 USB interface board. I was wondering if there was a way to run a torch height controller with this board for use with a plasma cutter, and if so do you know of any THCs that will work. Thank you.

Hi, this BBB comes with a USB port and its cable to power it up. Once connected to the computer a led in the BBB will light up to show it has power.

Additional Information:
Breakout board I have does not have USB port for the 5v power. Does the parallel port supply the 5V power?

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Hi, I need assistance, the parallel breakout board I received looks different from the one on the video, does this one need a 5V supply? If so, where do I connect the positive and where do I connect the ground? Thanks for your help.

To control a spindle using the USB CNC interface, you will need a relay board that contains a transistor that can activate the relay with a power source with enough current that can activate the relay. This video explains all of the information you will need to develop this relay circuit:

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i have a breakout usb controller iam using a spindle output to active a relay 5V but it didnt work.... whats the problem, what else i need to active that realy 5v 10A?

Sure, connect O2 (output #2) on your mach3 USB board to the GND side of your relay coil. Connect the 24V power supply to the positive side of your 24v relay.

You will want to connect a flyback diode (1N4007) between the coil connections to make sure the coil back current does not damage the Mach3 USB board.

Refer to this diagram:
https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

Please let me know if this helps and if you need further guidance.

Thanks

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I recently purchesed a USB Mach3 breakout board and need help setting mach3 to use a relay to start the router can you show how to set the pins and which port to use on the board to attached the relay?

First, you should check the configuration in your CNC control software and determine if the spindle control pin is correctly set. That pin will engage the relay.

The P and O position of the relay is set as Normally Open where the relay is open (open circuit, or no connection) at idle and when engaged will be closed (closed circuit, or connected). If you suspect that the relay is damaged, the recommended action would be to disconnect the spindle from the relay and operate the spindle/VFD manually using the Run and Stop buttons on the face of the VFD (until the breakout board can be replaced).

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The spindle has started on my Machine while the machine was sitting idol, I'm not sure if the relay has failed on the breakout board. Is there a way to test this?

If you want speed control, it is recommended to use the RS-485 connection on the VFD and use the control program such as Mach3 to communication serially with the VFD using this RS-485 connection.

If you would rather use a controller such as the PMDX-107 to simulate the effect of a potentiometer using the Aref, Aout and Agnd and the Rev/Dir and Fwd/Run terminals to control operation and direction, you can connect those to the VFD.

PMDX-107 Aout connects to the VI (analog voltage in). This is like the wiper on a potentiometer.
PMDX-107 Agnd connects to the ACM terminal on the VFD for Analog common.
PMDX-107 COM connects to DCM terminal on the VFD for Digital common.
PMDX-107 Fwd/Run connects to the FOR terminal on the VFD for Forward.
PMDX-107 Rev/Dir connects to the REV terminal on the VFD for Reverse.

Refer to your PMDX-107 manual to correctly configure your dip switch settings and make sure to calibrate (tweak) the speed control using the trimmer next to the terminals on the PMDX-107.

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I have the USB controller board and the 8825 step driver. I need a wiring diagram between the two. Specifically, what does the GND pin on the X-axis connect to? Also, what does the 5V pin on the driver connect to?

You can find a wiring diagram here:
https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/

The CP terminal is wired to the step terminal on the 8825 step driver.
The CW terminal is wired to the direction terminal on the 8825 step driver.
The GND terminal connects to the GND on the 8825 step driver

The 5V connector on the driver simply powers the logic side of the chip and needs to connect to VCC pin on the keyboard jog.

Customer Response:
Thanks! Working now.

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I have the USB controller board and the 8825 step driver. I need a wiring diagram between the two. Specifically, what does the GND pin on the X-axis connect to? Also, what does the 5V pin on the driver connect to?

At this time we are working to release a new USB controller board that will be compatible with Mach4 software and do not have any immediate plans to update the Planet-CNC USB board.

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Are there plans to release a USB Controller to work with the Planet CNC Output Board for more advanced spindle control from within Planet CNC?