Proxxon conversion

[Phil Gravett]

I am in the process of converting a Proxxon MF70 mini mill to cnc using parts from Zapp.
The controller is- USB 4 axis hobby.

Motor drivers are UIM 2004 X 3

Motors are SY57STH56-2008B X 3

I have also purchased the linking board that goes between controller and drivers to help with this my first attempt at cnc conversion.
My problem is that I am finding the wiring, of the motors in particular, to be confusing.
I think I want to wire them in parallel but which of the colours get linked together to achieve this and then, which way around do they get connected to the A+A- B+ B-?
One of the leadscrews is left handed. I presume that this motor will need to be wired the other way to the remaining 2.
If anybody can relieve my brainache I will be eternally grateful.
Confused from Sussex. Phil.

[Jonathan]

Swapping A+ and A-, or B+ and B- will reverse the motor direction. It's generally easier to reverse the direction in Mach3/EMC ... just tick the box in ports and pins setup and it'll spin the other way.

[Phil Gravett]

Swapping A+ and A-, or B+ and B- will reverse the motor direction. It's generally easier to reverse the direction in Mach3/EMC ... just tick the box in ports and pins setup and it'll spin the other way.

Thanks for that. Cleared up that anyway. I am not using Mach 3 as the controller came with it's own software. Phil.

[Jonathan]

Just noticed you asked for clarification of the wire colours etc:

Edit, The following connection is wrong - see posts #6,#7. Left it here for continuity.

A+, Red & White
A-, Yellow & Orange
B+, Blue & Brown
B-, Black & Green

It should be clear from the diagram that that puts the coils in parallel. Your driver will need to be rated for at least 2.8 amps to run the motors in parallel.

Reference: http://www.slidesandballscrews.com/p...TH56-2008B.pdf

One thing to check, if when you've connected the wires the motor gets more difficult to turn it's wired wrong so don't switch it on!

[Phil Gravett]

That is extremly helpful. The drivers are rated 2a-4a-8amp adjustable with a mini pot. Not quite sure how to do that yet but the motor wiring was the main problem.
The power supply gives 35 volts and drivers can take up to 40v. Do you mean that the motors will feel more difficult to turn (if wired wrong) even though no power is going though them?
Phil.

[Phil Gravett]

I didn't mean to shout last post. It is just that I couldn't see how a motor unconnected with power could feel different when turned with wires connected/un con.
Just shows me how little I know and how much there is to learn. I am not sure I have enough years left in me for this and Gypsy Jazz.
If I connect wires as per above from Jonathan, the motor does indeed get stiffer to turn by hand. Connecting Thus however-

Yellow / Black
Blue / Red
Brown / White
Green / Orange
and the motor feels much the same as unconnected. So what is going on here? Is there no standard. Confused as ever Phil.