Re: Pixie error connection

Tom,

Thanks! I am trying to find out about the specs on the Pixie but have
none at this point. I did have the same source for the +5v for the
Pixie and the relay.

Keith

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Tom Hubin <thubin@...> wrote:
>
> Hello Keith,
>
> > I gave it a try and connected +5v to the + of the relay
>
> The +5v needs to come from the pixie too. Is that where you got it?
>
> If you are using +5v that is not from the pixie then you may need to tie
> the +5v power supply ground to the pixie ground.
>
> Can you point me to data sheets for the pixie open collectors and for
> your solid state relay control? If I can determine the capability of the
> open collector and the pixie connector pinout and the requirements for
> the solid state relay, I should be able to make a more specific
> recommendation.
>
> Tom Hubin
> thubin@...
>
> *************************
>
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler" <grezmos@>
> > wrote:
> > >
> > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "toolspindoctor"
> > > <clarkfamily5@> wrote:
> > > >
> > > > Graham,
> > > >
> > > > I am trying to drive a Dayton Solid State Relay, Input DC, Maximum
> > > > Input Voltage 32 VDC, Minimum Input Voltage 3.5 VDC, Output DC,
> > > > Minimum Output Voltage 0 VDC Grainger part #5Z950. Probably too
> > much
> > > > draw and it drops the Pixie to 0volts each time I connect. Must be
> > a
> > > > way to place a resistor...
> > > >
> > > > Thanks,
> > > > Keith
> > >
> > > In mentions opto coupling so am I right that the "coil" has a
> > polarity?
> > >
> > > If so connect the + to 5v and the negative to the pixie. That way
> > > when the pixie pulls the output low the led in the opto will be
> > energized.
> > >
> > > Connecting the relay the other way will tend to pull the pixie down
> > to
> > > ground and cause the fault.
> > >
> > > Please apply a pinch of salt as I have not used SS relays but I
> > think
> > > I am right.
> > >
> > > Graham
> > >
> >
> >
>