Re: sherline motor/speed control wiring IT WORKS!

Tauseef,

I'm sure you already know, but you need a resistor in series with a
LED. Also, the line from pin 1 is used to "pull down" the SSS (Solid
State Switch) (-) terminal (+ to +5v). Actually, LED's should be
connected similarly (LPT pins as pull downs).

Alan KM6VV


tauseef wrote:

>
> Hey guys, more news! I got an LED to turn on and off using M03 and
> M05 command on CNCPro! Connect a wire on pin 1 (+) and then I used
> ground off of the camtronics board (this should work for others too).
> Check the voltage output and see if it goes up and to basically 0 by
> pressing F5 (this turns on this I/O). On mine is a little under 5
> volts. Connect your device between the two wires and it will turn on
> and off on command! Works so far! Tomorrow I will get a solid state
> relay and hook it up to the I1 and I2 on the sherline speed
> control....Well let you guys know if it works tomorrow!!! Can't wait!
> tauseef
>
> --- In CAD_CAM_EDM_DRO@y..., "tauseef" <alieron@h...> wrote:
> > Hey guys, great news! First, I by-passed the thermal protection
> > thingy and the motor and speed control work perfectly :) Second, I
> > read and studied about connecting I1 and I2 together to cause
> > a "brake/inhibit" action and it TOTALLY worked!!! Yes, when I
> > connected I1 and I2 together the motor came to nice stop and when
> you
> > unconnect I1 and I2 the motor accels like normal!!!! Yippy! Now,
> its
> > just a matter of hooking up a relay or transistor to do the
> > connecting/unconnecting for me through CNCPro! I also noticed if
> you
> > stop the motor by hand when you turn off the power and then turn it
> > back on right away the motor "jerks" for a second. If you let it
> > spool down on its own or wait a little longer, then turn on the
> power
> > it will not "jerk" like that-probably time needed for a capacitor
> to
> > discharge or something.
> > We're almost there!!!!
> > tauseef
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "tauseef" <alieron@h...> wrote:
> > > Randy,
> > > Yes the I1 and I2 do sound tempting. Thank you for the link, I
> will
> > > look into it more. I am glad that the timing was good for you. I
> > > wondered about the wiring for a while and I guess the ZAP! gave
> me
> > a
> > > reason hehe. I know a few others are working on getting this
> > spindle
> > > on/off thing worked out. When it does, hopefully they will let
> all
> > of
> > > us know. If and when I do, I will let you guys know how to do it.
> > >
> > > Alan you bring up and interesting twist to the whole "spindle
> > on/off
> > > quest" with speed control. Actually at the KB electronic site
> under
> > > the manuel they do say this:
> > >
> > > "Voltage Following- All models can be controlled with an ISOLATED
> > > analog reference voltage (0-7 VDC) in lieu of the main speed
> > > potentiometer. The voltage is connected to P2(+) and F-. The
> > control
> > > output voltage will linearly follow the input voltage. The source
> > > impedance of the input should be 10K ohms or less. The Min and
> Max
> > > trimpots are rendered inoperative in the voltage following mode.
> > Use
> > > auxiliary trimpots for scaling and to limit the control range. If
> > the
> > > input signal is not isolated, or is a current signal (4-20 mA),
> the
> > > KBSI-240D or SI-5 Barrier Terminal Board Signal Isolator must be
> > > used. It wil allow direct connection to process controllers and
> > > microprocessors."
> > >
> > > later
> > > tauseef
> > >
> > >
> > >
> > > --- In CAD_CAM_EDM_DRO@y..., Randy Gordon-Gilmore <zephyrus@r...>
> > > wrote:
> > > > At 04:25 PM 3/3/01 -0800, Randy Gordon-Gilmore wrote:
> > > >
> > > > >"The Inhibit™ circuit (terminals I1 and I2) is provided to
> > > electronically
> > > > >disconnect the armature output voltage."
> > > >
> > > > I found some information on the Inhibit circuit at
> > > >
> > > > http://www.kbelectronics.com/pass/tech/1033.html
> > > >
> > > > (I had to register with their site to find that...)
> > > >
> > > > Best regards,
> > > >
> > > > Randy