Re: matsushita stepper specs ?

Hi all,

Jon, I'm impressed.

you are correct sir.
24 steps per revolution. 181.9 RPM.

and you are right again, copiers do not have a reverse.......
darn, I was hoping it would be useful.

I have mounted a size 34 stepper on a 1/4 inch plate to the side of
my drill press and am awaiting a large pulley to mount on the spindle
feed.

Once I get it installed, I'll post some pictures for the next home
hobbiest to see what it looks like.

Dave

--- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> dave_ace_me wrote:
>
> > Hi all,
> >
> > seems I've stumped the best.
> >
> > the stepper I have has an on=board controller
> > (this was pulled from a coppier)
> > the 4 terminal connector is
> >
> > 24 V
> > Gng
> > P/S (I assume pulse/step)
> > and LD
> >
> > any ideas what LD might stand for ?
> > the unit does appear to have a magnetic
> > band on the rotating houseing, so it might
> > be a feedback or speed or posistion???
> >
> > Dave
> >
> > origional message below
> >
> > --- In CAD_CAM_EDM_DRO@y..., "dave_ace_me" <davemucha@j...> wrote:
> > > Hi,
> > >
> > > I got the timing belt and gears worked out for automating my
drill
> > > press, and have a stepper motor from the copier I am using for
> > parts.
> > >
> > > The stepper is Matsushita model GLQ-6DB071A and has a 7:1 ratio
> > gear
> > > reduction as part of the unit.
> > >
> > > There is also an intgrated circutit board, lookes like a mirco
> > > controller with resonator, caps and all.
> > >
> > > the stepper is 24 VDC 1.4 A so it should be strong enough.
> > >
> > > The connector on the board has 4 pins,
> > > GND 24V P/S and LD
> > >
> > > I can't find ANY data on Matsushita steppers on the web, just
> > > circular references of Panasonic.
> > >
> > > Does anybody have any ideas on either how/where to find motor
data
> > or
> > > maybe how to wire this puppy ?
>
> This is not really a stepper motor, but a brushless DC motor. To
use
> it for positioning, ie. bidirectional use, you will have to remove
the
> controller, which almost certainly is one way only. If it is a 24 V
> motor, it has too much inductance to deliver much speed unless it
> has VERY few poles (steps / revolution). So, it most likely is
somewhere
> in the 8 - 24 poles range, which would give you 16 - 48 steps/rev.
> That's why they use the gearbox.
>
> Jon