how to keep a relay energized ?

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=62907
Printed Date: May 12, 2025 at 8:11 PM

Topic: how to keep a relay energized ?

Posted By: AZ-ss
Subject: how to keep a relay energized ?
Date Posted: September 19, 2005 at 2:38 PM

I'm looking to keep the coil on a relay energized with a momentary positive switch.

I'm using the (+) pulse from the arm/lock wire to send a pulse to a relay for the window roll up module(#85 pos pulse from lock, #86+87 to neg from alarm ground when armed and #30 to neg input of window module)

. I tried using the ground when armed wiRED / but it sends ground as soon as the ignition is switched off which immediately rolls up the windows. (not desirable)

So I need a diagram that will keep the relay's coil energized for 10 seconds from the door locks .8 second positive pulse.

(does this make any sense?)

Replies:

Posted By: blazeronspokes
Date Posted: September 19, 2005 at 2:47 PM

if you used the ground when armed wire it should have been grounded when armed, not when you shut off the car. what alarm do you have in the car right now?

Posted By: AZ-ss
Date Posted: September 19, 2005 at 3:31 PM

Using an autopage rf-310.

Posted By: AZ-ss
Date Posted: September 19, 2005 at 3:35 PM

I tried tapping into the wire that goes conected to the starter kill relay, (ground when armed) that's when I was getting an apparent ground that triggered the window roll up module.

Posted By: neilfrombestbuy
Date Posted: September 20, 2005 at 2:42 PM

try a diode in line at the wire going to the relay for the starter kill so it wont feedback.