I have nema 23 stepper motors , had to cut off plugs from harness to connect to m 31 control . Wires, red green blue white ,  where do they mount on the m 31 ( s+ s- etc ) . Also need wire diagram to vfd Chinese , have contacted support but no reply yet .

   Thanks

    Ed

Hi Ed,

The wiring for the M31 will depend on your drives common.

If your drive common is 24v then you will need to wire to S- D-.

If your drive common is 0v then you will need to wire to S+ D+.

I believe most drives are typically NPN so the drive common would be 0v, but that is Not all drives.. I would highly recommends checking the manual on your Motor Drives to determine what your wiring needs to be.

thanks,

Paul

Hi Ed,

The details for connection of the M31 to your motor drives are here:
https://support.machmotion.com/books/motion-controllers/page/m31-motion-control-setup-manual

If you are still using the Gecko G540 for your motor drives then you will also need a suitable cable etc. to connect the M31 screw terminals to the G540 parallel port DB25 connector.
The Gecko G540 manual is here;
https://www.geckodrive.com/wp-content/uploads/2023/04/G540-MANUAL-REV8.pdf

Hope this helps,

Tweakie.

I am not using the G540 any longer. Are all 4 wires from the motor used , I do not know where each colored wire should go on the connector
 that is my problem , the manual does not state that ( blue to ? red to ? etc) Also vfd wiring .

   Ed

Hi Ed,

Wire colors are superficial and thus tend to mean nothing. There is somewhat of a standard, but those standards can change from person to person or company to company. This makes going off of wire color VERY unreliable.

What Drives do you have?

thanks,

Paul

Hi Ed,

Perhaps I am misunderstanding your comments but you cannot connect stepper motors directly to the M31.
The M31 is a ‘Motion Controller’ in exactly the same way that the Warp9, ESS is a ‘Motion Controller’ – they each require drivers (such as the G540) to operate the motors.

Tweakie.

How would the g540 get connected to the M 31 , the g540 is a 4 axis , how would you be able utilize the other 2 axis on the  M31

Hi Ed,

For your G540, you will need to break out your DB25(Parallel port) and connect the following pin wires to the following connectors.

X Axis
DB25 Pin 2 → M31 MTR0 S+
DB25 Pin 3 → M31 MTR0 D+
Y Axis
DB25 Pin 4 → M31 MTR1 S+
DB25 Pin 5 → M31 MTR1 D+
Z Axis
DB25 Pin 6 → M31 MTR2 S+
DB25 Pin 7 → M31 MTR2 D+
A Axis
DB25 Pin 8 → M31 MTR3 S+
DB25 Pin 9 → M31 MTR3 D+

Below is your manual for reference:
https://www.geckodrive.com/wp-content/uploads/2023/04/G540-MANUAL-REV8.pdf

You can use a Ohm meter to test continuity on your pins if needed to find which wire is which pin.
Alternatively, they make DB25 Breakout Boards.

Thanks,

Paul

Thanks Paul , I'll give it a try


    Ed