Re: Mystery Controller

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "volitan712003"
<volitan@o...> wrote:

> Hello Group!
>
> An impulse buy from e-bay netted me a small assembly which has 3
> small steppers on it as well as a controller/driver(?), and a slew

of

> roller switches.
>
> The board appears to be proprietary, from TOA Medical Devices in
> Japan.
>
> My question is, is there a safe way for me to determine how this
> works? I see where the steppers (12 volts,6 wires each) plug in, I
> see where the power goes, although I don't know how much to start
> with and there's a 16 pin ribbon cable which I'm guessing is where

it

> is controlled from.
>
> Can anyone help?

I would hope that the switches were connected to the ribbon
connector, that would at least reduce the possible connectors.

probably there is one step and one direction signal for each stepper,
and either a +5 or common ground, that would take care of 7 postions.

then each switch may share a common and then have a signal.....

Sounds like some fun to trace it out.

Dave