Re: Centroid servo w/ Koyo encoder

Looking on the AJAX web site, I see downloads of
the wiring schematic for a mill at:

http://ajaxcnc.com/downloads/MILL1.dwg

Examining this drawing one finds the following chart:

DB9MCONNECTIONS
PIN1 = N/C
PIN2 = GND
PIN3 = Z-
PIN4 = A-
PIN5 = B-
PIN6 = Z
PIN7 = A
PIN8 = B
PIN9 = +5V
BODY = SHIELD

These are differential output encoders and the signals
labeled with a - at the end are mated with the same
signal without the - to form a differential pair.

Regards,
Steve Stallings
www.PMDX.com


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "rocketscientistnate"
<rocketscientistnate@...> wrote:

>
> I'm surprised it took somebody suggesting I take it apart for me to

do

> so. I didn't find out who made the motor, but it is manufactured

in

> England. The encoder is a Koyo TRDA-VC2000V6-7098. I can't find

this

> exact model, but it seems to have been replaced with the TRDA-VA
> series. http://www.koyoencoder.com/products/pdf/trda_va.pdf The
> wiring apears to be the same except mine doesn't have the

commutation

> signals, but this appears to be an option anyway. I think I have

the

> wiring figured out for the encoder anyway. Now for the rutex 990h
> driver board. Do I understand right that it should have a 24V DC
> power supply with enough current to drive the motor? Is this left
> connected from the test cable or does it hook into one of the two

pin

> terminals? My home built one I'm using for gecko201s is just under
> 80V DC. Can I just use a regulator to drop this down to 24V? Also

I

> think I was told the motor power comes from one of the two pin
> terminals. Is this right, and which one would it be?
>
> Thanks
> Nathan Clymer
>