RE: [CAD_CAM_EDM_DRO] Minertia Motors

> .
>
> Thanks. I bought 10 of these little things, and 8 appear to be in
> good shape, the others rattle (might be something to do with the
> encoder or bad brushes....)

I have some that have loose brushes maybe repairable. I have about 50 left
maybe and I haven't gone through all of them yet.

>
> I think that an Atmel 90S2313 running as a
> phase lock loop based on the encoder, its internal timebase and the 16
> bit counter should give me the possible design ratios, especially
> since it is also designed to do PWM.
> Should be an interesting project.

Let me know how this comes out I would be interested in something simular.

>
> Will be running off 12 volts at the most, although I can have 18 volts
> available at a higher drain from the battery (old compaq mobile
> adaptor... 12 to 18 volts....)

I think this will work ok as they seem to like low voltages.

>
> That 80 IPM runs out to what RPM or at what voltage supply?

I don't know the exact RPM but it is 20khz pulse from the computer at 24v. I
haven't maxed it out yet maybe I will do that tonight.

The

> company says that they run well up to 24 volts, and I will attest that
> the torque at 3 volts is respectable.

The torque seems real good to run a small mill or anything else especially
at 24v.
Derek

>
> >Derek
> >
> >> -----Original Message-----
> >> From: Derek B. [
> >>
> >>
> >> I am also looking for info on motor #2 as I have quite a few
> of these. I
> >> think the first number might not be right though. Mine says
> >> T01L-ST33 and I also have ST34 's
> >> The PN# is right on.
> >> The encoder has 4 wires red,black,green, and white. The red
> and black look
> >> like power. White and green are A and B encoder.
> >> Derek B.
> >> http://groups.yahoo.com/group/Denver_CNC_Club/
> >>
> >>
> >>
> >> > -----Original Message-----
> >> > From: Harvey White
> >> >
> >> >
> >> > I've looked at the Yasakawa company web site, done a search
> on Google,
> >> > and have not come up with any data on two motors I have.
> >> >
> >> > Any help would be appreciated. Both of these have encoders.
> >> >
> >> > motor 1:
> >> >
> >> > UGRMEM-02SAK0E
> >> > UTOPI-080MX
> >> > "RM Series"
> >> >
> >> > Has an encoder... 400:1, 2 phase, iirc... (used a counter..)
> >> > motor is roughly 4 inches by 1 1/2
> >> >
> >> > Motor 2:
> >> > "Mini-Series"
> >> > 101L-ST33
> >> > 410611703-C EC29145
> >> >
> >> > Has an encoder. ratio yet unknown....
> >> > motor is roughly 1 inch by 3 inches.
> >> > will run on roughly 1.4 volts to 24 or so.
> >> >
> >> > Harvey
> >> >
> >> >
>