Relay''s coil-part#
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Posts: 46,084
You didn't say what you are trying to control or how big the load
is. If you just want to light a few LED's you can get by with a 2222
or something, if you wanted to start your drill press motor, the
relay is a great way to go.
5 volt loads, LED's for example use a lot of current at 5 volts, and
some, like an electric motor use AC. The Stamp is the brains, and
the relay (Transistor, SCR, TRIAC, Darlington, etc.) is the muscle.
Check message 7856 for a link.
A relay is great when you need separate power supplies or have a
noisy load or huge voltage/powers loads. You just need some
supporting circuitry. That's the fun about the stamp. You set off
to do one thing and learn about a few others along the way.
--- In basicstamps@y..., davemucha@h... wrote:
> I checked the part number and the suffux denotes the coil voltage.
> G6A-274P-ST-US-DC5 is 5 volt DC. at 5 VDC the coil is listed for
> 200 mW. Check for seperate transistors or a darlington to handle
the
> power. Check this list for more information on transistors, power,
> even servos to get more information.
>
> Remember the coil voltage is what is needed to power the
> electromagnet. The contacts can handle the full rating of the
relay.
>
> Keep in mind that there is a total amount of power the stamp can
> handle and make sure your total is less. Even thought each pin can
> handel 20 mA, the stamp cannot handle 10 such loads.
>
> Check the Parallax site for examples. I think the Industrial
> applications or servos should detail how to connect the pins and
> even recomend some devices.
>
>
>
>
> --- In basicstamps@y..., immolation@h... wrote:
> > 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
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
is. If you just want to light a few LED's you can get by with a 2222
or something, if you wanted to start your drill press motor, the
relay is a great way to go.
5 volt loads, LED's for example use a lot of current at 5 volts, and
some, like an electric motor use AC. The Stamp is the brains, and
the relay (Transistor, SCR, TRIAC, Darlington, etc.) is the muscle.
Check message 7856 for a link.
A relay is great when you need separate power supplies or have a
noisy load or huge voltage/powers loads. You just need some
supporting circuitry. That's the fun about the stamp. You set off
to do one thing and learn about a few others along the way.
--- In basicstamps@y..., davemucha@h... wrote:
> I checked the part number and the suffux denotes the coil voltage.
> G6A-274P-ST-US-DC5 is 5 volt DC. at 5 VDC the coil is listed for
> 200 mW. Check for seperate transistors or a darlington to handle
the
> power. Check this list for more information on transistors, power,
> even servos to get more information.
>
> Remember the coil voltage is what is needed to power the
> electromagnet. The contacts can handle the full rating of the
relay.
>
> Keep in mind that there is a total amount of power the stamp can
> handle and make sure your total is less. Even thought each pin can
> handel 20 mA, the stamp cannot handle 10 such loads.
>
> Check the Parallax site for examples. I think the Industrial
> applications or servos should detail how to connect the pins and
> even recomend some devices.
>
>
>
>
> --- In basicstamps@y..., immolation@h... wrote:
> > 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
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >