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How to use relay with NEGATIVE sygnal |
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rojna
Joined: Sep 04 2009 Posts: 5 Location: 33710  1995 Dodge Neon Last updated: 10/14/09 |
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Fri Sep 04, 2009 10:09 am
Hey, new here with a ??
I need to use a relay but my sygnal wire is - not + So do I just reverse the polarity to make it work ?? Or will that burn the relay 
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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Fri Sep 04, 2009 10:42 am
Run 86 to constant power then run the signal to 85 , when the signal goes low , it'll power the relay
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rojna
Joined: Sep 04 2009 Posts: 5 Location: 33710 1995 Dodge Neon Last updated: 10/14/09 |
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Fri Sep 04, 2009 11:50 am
Thanks that makes sense
do I also run constant power to 30 ?? |
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bad venge
Joined: Jul 28 2007 Posts: 1602 1998 Dodge Avenger Last updated: 05/18/09 |
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Fri Sep 04, 2009 1:00 pm
Yes connect 30/86 together to the 12V source and DO NOT ground 85 , just connect the signal wire to it
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Aken
Joined: Feb 12 2003 Posts: 9415 |
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Fri Sep 04, 2009 2:30 pm
Keep in mind that that graphic is to show people how to use a relay normally closed instead of normally open. Meaning that if you connect any lights to 87a, they will turn OFF when the relay is activated.
If you want whatever is connected to the relay to turn on when it is activated, connect it to the 87 pin, not 87a. |
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rojna
Joined: Sep 04 2009 Posts: 5 Location: 33710 1995 Dodge Neon Last updated: 10/14/09 |
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Fri Sep 04, 2009 2:36 pm
Awesome, thanks for the help
I will be using this to power a trunk power actuator from my remote. |
The time now is Sat Nov 21, 2009 7:09 am