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Thread: Relay Pin Outs

  1. #1
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    Question Relay Pin Outs

    OK so the bottom of my relay looks like this:

    ____________________
    |..O.2..........O.3..|
    |....................|
    |O..1................|
    |....................|
    |__O_5__________O__4_|

    With the 'O's being pins and the # the number that they are labled.

    1 is labeled COM
    2 and 3 are joined by a squiggily line (coil i suppose, but i wanted to say squiggily)
    3 and 4 are marked NO

    Its a SPDT.

    So what Goes where?
    I using it it in the same fashion as on Sproggys PSU and i intent to use the control line on the Head Unit to switch it on.

    Thanks
    Machs_


    Err stupid spaces how about this?
    http://machs_fuel.tripod.com/relay.htm


    [ 10-09-2001: Message edited by: Machs_FueL ]

    [ 10-09-2001: Message edited by: Machs_FueL ]
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  2. #2
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    Its very straight foward, (even though your diagram is not)
    *Pins 3 and 4 are the coil...
    *Pin 1 is the common pin...
    *Pins 2 and 5 are the switching pins..

    No3, let me try to explain what I mean..

    When you apply power the the coil, the relay switches so that pin 1 and 2or5, (I don't know which) are connected, when no power is applied to the relay, pin 1 will be connected to either pin 5or2, (the oppisite one the when power is connected)

    I hope this helps..

    (Edit: Removed insulting comments. Yes, I edited your post. Yes, it is a violation of your rights. Send me a private message if you have a problem with this.)

    [ 10-10-2001: Message edited by: Aaron Cake ]

  3. #3
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    so common doesnt do anything?
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
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  4. #4
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    Originally posted by SkinnyBoy:
    <STRONG>It couldn't be that hard to work out, unless you were blind...</STRONG>
    Can you stop making dumb *** comments... And you are sound stupid all the time would you want people to tell you that too?

    If the guy ask a question it means he doesnt know and need some help... Instead of making fun of his question try to answer it... or even better DONT... Look at your answer it dosent make much sence anyway.

    Yes common does get used...
    I dont remember the sproggyies supply but what u need to do is find out the normally open (NO) 3 and 4 pins and as far as i can tell from the info u gave there are connected together. So basicly u connect COM pin 1 to your one side of the line and pin 3 or 4 to the other side of the line. But what i want to know is what happen to your pin 5? you not mentioning anything about it???

    [ 10-10-2001: Message edited by: Fosgate ]
    Fosgate

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  5. #5
    Raw Wave Rob Withey's Avatar
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    Post

    Originally posted by Machs_FueL:
    <STRONG>so common doesnt do anything?</STRONG>
    Pin 1 does do something. It is connected to pin 4 (actually marked NC - normally closed) when the coil is not energised. Pin 1 disconnects from pin 4 and connects to pin 3 (NO - normally open) when the coil is energised. It's a standard SPDT - single pole, double throw.

    The coil runs from pin 2 to 5, not as Skinny described (he got 2,5 and 3,4 mixed up). The coil rating is probably marked on the top or the side of the relay, as will probably be the contact ratings...

    Your picture post was actually far more informative than your diagram, since you didn't mention what pin 5 was, and you described pin 3 twice.

    Hope that helps.


    Rob
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  6. #6
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    Yeah, I messed up there, I mis read what was said.. sorry if I misled you...

  7. #7
    Retired Admin Aaron Cake's Avatar
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    SkinnyBoy: That's it. I've had it. Posting misleading information is one thing, but calling someone "blind" and blatently making fun of them is another. I'm going to shoot moon and email and see what can be done about this.

    Machs_FueL: For a little info about relays, check out http://www.aaroncake.net/electronics/schem.htm . It would also be a good idea to ignore SkinnyBoy on any electronics topics. He does not have the knowledge or experience to be giving out advice.

    [ 10-10-2001: Message edited by: Aaron Cake ]
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  8. #8
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    Thanks Rob i thats exactly what i needed to know.
    Aaron i checked your site before i posted .

    About this whole skinny boy issue...
    I've stopped paying attention to him long ago...
    If we had a kill Filter on this board he'd be on mine.
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
    Car Totaled and i bought a 20G mp3 player

    http://machs-fuel.tk
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  9. #9
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    Posting misleading information is one thing, but calling someone "blind" and blatently making fun of them is another
    I didn't make fun of him, and I definatly didn't call him blind.. why would I do that, The information I posted was misleading, but it was a mistake and I appologised for it, I do have quite a good knowledge in electronics, AND I DO KNOW WHAT I A TALKING ABOUT, I am just a bit to quick in replying, and don't take time to read the original posts properly..

  10. #10
    Retired Admin Aaron Cake's Avatar
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    Exclamation

    Originally posted by SkinnyBoy:
    <STRONG>
    I didn't make fun of him, and I definatly didn't call him blind.. why would I do that, The information I posted was misleading, but it was a mistake and I appologised for it, I do have quite a good knowledge in electronics, AND I DO KNOW WHAT I A TALKING ABOUT, I am just a bit to quick in replying, and don't take time to read the original posts properly..</STRONG>
    And I quote:
    It couldn't be that hard to work out, unless you were blind...
    and

    Its very straight foward, (even though your diagram is not)
    Unfortunately, I had already removed the other comments you made, so I cannot quote them. But don't tell me you didn't call him blind, because quite simply, that's a lie.

    As far as posting quickly, then I have one suggestion: proofread. It's rather simple in fact.

    I'm not going to waste anyone else's time with this topic, so I will drop the issue here. But I will still be emailing moon about the whole thing. When I get time, that is...
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

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