Re: CNC Project Needs Help: Slo-Syn Translator

Thanks, Brian! This should get the motor turning.

Dave

--- In CAD_CAM_EDM_DRO@y..., Brian Pitt <bfp@e...> wrote:
> On Sunday 08 April 2001 06:31, you wrote:
> > I have an older Slo-Syn Translator, Model ST101A with no manual
and
> > need help getting it to drive a SLO-SYN stepper motor. The unit
is a
> > rack mount box with only a power switch, speed control pot, and a
+/-
> > switch (which I take to be a forward/reverse switch) on the front
> > panel, and 10 screw terminals on back, labeled as follows. Can
> > anyone clear up how to use these terminal assignments?
> >
> > 1 - RUN 1
> > 2 - PU OUT
> > 3 - CW PU
> > 4 - CCW PU
> > 5 - VO
> > 6 - M1
> > 7 - M3
> > 8 - M4
> > 9 - M5
> > 10- +24V
> >
>
> I've got the manual to its brother the STM101 ,this thing is a
museum piece
> its a unipolar driver and your going to need current limiting
resistors on
> the center taps to ground
>
> m1 coil1a (red wire)
> m3 coil1b (white/red)
> m4 coil2a (white/green)
> m5 coil2b (green)
>
> the center taps (white and black wires) each have a series resistor
to +24v
> you'll have to figure the values for your motors ,someware arround
10 Ohm 100W
> the other terminals are
> VO=gnd
> RUN 1=pull low to start internal 555 timer
> PU OUT=pulse output from 555 can be sent into the cw or ccw
pulse/step inputs-
> CW PU
> CCW PU
> these two can also be driven externaly from the computer
> the 555 circuit is for running the motor as a standalone unit and
can be
> disabled and ignored for computer control you may have to open the
case
> to do disconnect the +/- switch to do this
>
> Brian