relay help

[jaj43123]

alright, im using this relay
https://www.newark.com/NewarkWebCom...p?x=0&Ntt=56f1024&Nty=1&N=4&y=0&Ntk=gensearch

its picture is like this
https://www.newark.com/product-details/text/eproc/Em/HTML/Images/Web1/47F1106-12.jpg


i have no experience with relays and need major help on how to hook this up. i need to hook it up to a battery that goes to a switch, then to the relay which goes onto a 555 timer and a buzzer. any help at all will be of major thanks.

 

[williB]

alright, im using this relay
https://www.newark.com/NewarkWebCom...p?x=0&Ntt=56f1024&Nty=1&N=4&y=0&Ntk=gensearch

its picture is like this
https://www.newark.com/product-details/text/eproc/Em/HTML/Images/Web1/47F1106-12.jpg


i have no experience with relays and need major help on how to hook this up. i need to hook it up to a battery that goes to a switch, then to the relay which goes onto a 555 timer and a buzzer. any help at all will be of major thanks.

what are you trying to do ?
i'm curious because there might be another way to do what you want..

 

[jaj43123]

well basically this
https://www.electro-tech-online.com...read-write-it-as-in-seeprog.15263/#post-83239

i cant figure out how the relay works tho. real pain in the ass if you ask me

 

[williB]

ok so the door opening closes a switch..
switch starts 555 timer
if timer times out , then timer sends a pulse to relay which turns on buzzer ..is that about it??
what type of buzzer are you going to use?

 

[jaj43123]

yeah that is about it. im using this buzzer

https://www.newark.com/NewarkWebCom...p?x=0&Ntt=52f8501&Nty=1&N=4&y=0&Ntk=gensearch

 

[williB]

pins 2 & 6 are your relay coil .
pins 1 & 14 are one end of your switch and 7 & 8 are the other end..

 

[williB]

of course you dont need to use all four 1 & 7 will do ..

 

[jaj43123]

well, how do you get it to work? what do you hook up to the coil? and how?

 

[David Bridgen]

Have you noticed that the contacts of the relay you have chosen are normally closed?

 

[jaj43123]

yes, i thought that was what i needed for this project, as did three other people, all of which have bachlorettes in electronicity and electronics (dont know the exact term). should i be using a normally open?

 

[David Bridgen]

That depends on what, exactly, you want to do with it.

If the relay coil isn't energised, its contacts are closed, so if you use it to control your buzzer, the buzzer would sound. This would mean you have to energise the relay to switch the buzzer off.

 

[jaj43123]

what do you mean? once the contact is reconnected, shouldnt the buzzer stop sounding?

 

[David Bridgen]

what do you mean? once the contact is reconnected, shouldnt the buzzer stop sounding?

Which contact?

 

[jaj43123]

well, my contacts that will be connected to my door. there will be one on the molding and one on the door

 

[David Bridgen]

Ok. Those contacts could be closed when the door is closed or open when the door is closed.

Are you trying to do the same as "jaj43123" in the other thread?

 

[jaj43123]

i am jaj43123 in the other thread. i just needed help on how to use my relay as i have no experience with it.

 

[David Bridgen]

With that buzzer, which takes only a very small current, there is no need to use a relay.
The relay would be used if the buzzer took a high current or was mains operated. (And a normally open contact relay too.)

Just use one of the circuits I put in the other thread, depending on whether your door contacts are normally open or closed. Instead of putting the relay coil and a diode in the collector circuit just connect your buzzer instead.

 

[jaj43123]

alright. ill look into that. thanks for the help. ill probably still have a few questions tho.