Re: [CAD_CAM_EDM_DRO] About 5-wire 5-phase Vexta motors

If I am not mistaken, 5 wire motors actually have 4 coils with 1 common
connection and can only be driven unipolar; 5 phase motors have 10
wires. The 5 wire motor is effectively what you would get if you connected
the 2 centre taps together on a 6 wire motor. To check this, select one of
the 5 wires & mesure the resistance between that and each of the other 4 in
turn. If you happen to have picked the common wire as the first wire, the
resistance readings will all be the same. Otherwise, one of the readings
will be half the value of the other 3, and the second wire that gives the
1/2 reading is the common connection.


Regards,
Tony



At 10:28 25/09/2003 -0500, you wrote:

>On Wed, 24 Sep 2003 22:33:59 -0000, you wrote:
>
> >Hi everybody! I just got a used 5-wire 5-phase Vexta motor. I need it
> >for a school project. But I need to know if it can be handled by a
> >microcontroler o PC, is it possible? I thought only a bit pattern
> >into each of the 5 wires will do the work, is it correct?
> >
>
>Microcontroller or PC will do the job, but you will have to take the
>logic level signals you generate and make them drive the motor. You
>will have to use darlington or FET transistors to do this, but I'm not
>personally familiar with 5 phase motors. I'd go to their website for
>all the information I could find, and pay special attention to the
>parts that tell you how to drive the motor.
>
>The actual program in a microcontroller is going to be relatively
>simple, involving the timer/counter part of the chip, 5 output lines,
>and some input lines to tell the chip what you want to do.
>
>Harvey
>
>
> >Thanks for any help, I'm new at this!
> >=D
> >JAV
> >
> >
> >
>
>
>
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Regards,
Tony