Connecting UNO R3 AVR Module / Arduino CNC Shield to TB6600 for Nema23 stepper motors

[DaveZ]

Hi Andy
Can I experiment with each pin on the shield connecting to the stepper drivers.? To find which is which. (without blowing board up) I presume pin out diagram relates to shield. I've looked everywhere for one.

[DaveZ]

Here's a pdf the shield supplier sent me. Not exactly the same but..... https://jtechphotonics.com/Downloads...oller_V1_2.pdf

[AndyUK]

Hi Andy
Can I experiment with each pin on the shield connecting to the stepper drivers.? To find which is which. (without blowing board up) I presume pin out diagram relates to shield. I've looked everywhere for one.

Shouldn't need to experiment - everything should be relatively simple. I've drawn a basic diagram to give you an idea. Note that the colours of the wires mean nothing in my drawing, its just whatever colour I picked in paint.

• First - be careful about the power supply + and - to the driver. Make sure you get them the right way around, else bye bye driver.
• Second, Identify the pairs of wires from the stepper. It has four wires in two pairs. Use a multimeter in continuity mode to determine which wires are connected.
• Connect one pair of the motor wires to A+ and A- on the stepper driver. The other to B+ and B-.
• Next, connect DIR+ on the driver to X DIR on the shield
• Repeat for PUL/STEP + to STEP + on the CNC Shield
• Connect ENA+ to ENABLE or EN on the CNC Shield
• Connect ENA-, PUL/STEP- and DIR- to Gnd on the CNC Shield
• TEST!

Note there is no power supply connection to the CNC Shield - this is intentional. I'm expecting the CNC shield to be powered by the arduino power or USB.

[DaveZ]

Hi Andy
Thanks for the warnings
I've identified the pairs using a multi
I had connected power supply to the shield, I will undo
I had noted that the usb could supply power as well
Currently putting together the base axis, a few teething problems
After that I'll download the arduino stuff onto a computer.
Perhaps I'll power up each axis at a time......
Will report back in a week or so.

[Vengyamy]

Good evening my friend, you have the diagram of the connection of the three axes

[Froggie]

Hey so are the EN/Ground shared between all drivers ? in like parallel ?
Just wondering i just saw this looking to do the same thing for my cnc hard to find wiring for external drivers on the shield

Shouldn't need to experiment - everything should be relatively simple. I've drawn a basic diagram to give you an idea. Note that the colours of the wires mean nothing in my drawing, its just whatever colour I picked in paint.

• First - be careful about the power supply + and - to the driver. Make sure you get them the right way around, else bye bye driver.
• Second, Identify the pairs of wires from the stepper. It has four wires in two pairs. Use a multimeter in continuity mode to determine which wires are connected.
• Connect one pair of the motor wires to A+ and A- on the stepper driver. The other to B+ and B-.
• Next, connect DIR+ on the driver to X DIR on the shield
• Repeat for PUL/STEP + to STEP + on the CNC Shield
• Connect ENA+ to ENABLE or EN on the CNC Shield
• Connect ENA-, PUL/STEP- and DIR- to Gnd on the CNC Shield
• TEST!

Note there is no power supply connection to the CNC Shield - this is intentional. I'm expecting the CNC shield to be powered by the arduino power or USB.

[AndyUK]

Hey so are the EN/Ground shared between all drivers ? in like parallel ?
Just wondering i just saw this looking to do the same thing for my cnc hard to find wiring for external drivers on the shield

Yes. Although in most cases you can just leave enable+ and enable- disconnected and the driver will still work; they tend to be programmed by default to have an enabled low behavior. I reprogrammed mine to swap that so it requires an active signal to enable the driver.