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Relay''s — Parallax Forums

Relay''s

ArchiverArchiver Posts: 46,084
edited 2001-01-28 09:54 in General Discussion
Hmm, i've only got one of these relay's so far, and i need about 9
more so is there any easier way of just turning a 12v circuit on/off
from the stamp? Solid state relay's perhaps?

Anyways, here is the exact relay i have
: http://oeiwcs.omron.com/webapp/commerce/command/ProductDisplay?
prrfnbr=552&prmenbr=316

its the G6A-274P-ST-US

Thanks for all your help guys

--- In basicstamps@y..., davemucha@h... wrote:
> One of the basics is that by the ratings you listed, you have an
> electromechanical relay. They use an electromagnet to change the
> state of the contacts and you can expect a bounce, see bounce in
the
> Stamp documentation for the characteristics.
>
> If you have this puppy connected to the same power as the stamp,
you
> may see switching problems. That is to say when you energize the
> coil, you may see the Stamp power supply change (drop) Also, if
you
> are powering any high voltage/high power, make sure the Stamp power
> supply is not effected.
>
> The ratings on the side are typically maximum AC current, maximum
DC
> current and the maximum induction load, say for an electric motor.
> Just use the ones that apply to your application.
>
> There should be another rating and that is the coil voltage. It
> might just be 24VAC on the side in letters, or printed on the coil
> inside of the unit if the case is clear. you can expect from
around
> 5 volts to 220 volts for typical relays, so you will need to get
the
> coil voltage to power it properly.
>
> Dave
>
>
>
>
> --- In basicstamps@y..., "Tim Goldstein" <timg@k...> wrote:
> > Go to http://www.ktmarketing.com/CNC.html and select the 5th link
> from the
> > top titled "Parallel Port Hookup to Controller". At the bottom of
> that page
> > you will find an explaination and a diagram on how to use a
> transistor ( a
> > 2N2222 will work fine) to drive a relay. Don't forget to get a
> diode also or
> > you will likely pop the transistor. Just replace the term PC and
> Printer
> > port with Stamp.
> >
> > Tim
> > [noparse][[/noparse]Denver, CO]
> >
> > >
Original Message
> > > From: immolation@h... [noparse][[/noparse]mailto:immolation@h...]
> > > Sent: Saturday, January 27, 2001 8:30 PM
> > > To: basicstamps@y...
> > > Subject: [noparse][[/noparse]basicstamps] Re: Relay's
> > >
> > >
> > > Ok, i know absolutely nothing about transistors =) I'll go pick
> some
> > > up tomorrow though, is there a specific rating that i should
get?
> And
> > > am i correct in assuming that i just put them in series with the
> > > relay and the stamp?
> > >
> > > Thanks
> > >
> > > --- In basicstamps@y..., "Mark Hillier" <Mark@H...> wrote:
> > > >
> > > > > Hmm, i was planning on just hooking the relay directly into
> the
> > > pins. The
> > > > > relays that i have are marked on the side: 0.6A 125VAC 2A
> 80VDC
> > > 0.6A
> > > > > 110VDC
> > > >
> > > > These are the *contact* ratings; they have nothing to do with
> the
> > > > voltage or current required to operate the coil.
> > > >
> > > > > so looks like there is no way the stamp will put out enough
> for
> > > this,
> > > > > whats the alternative for hooking these up?
> > > >
> > > > You will need to drive a transistor with the Stamp pin and
have
> the
> > > > transistor drive the relay coil.
> > > >
> > > >
> > > > Mark Hillier, VE6HVW
> > > > President, HVW Technologies Inc.
> > > > Canadian Distributors of Parallax Products and other Neat
Stuff
> > > > Tel: +403-730-8603 Fax: +403-730-8903
> > > > See our NEW BASIC Stamp Prototyping tools !
> > > > http://www.hvwtech.com/stampstack.htm
> > >
> > >
> > >
> > >
> > >
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