turn off relay

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greedy111

Member - Posts: 24

Joined: August 01, 2003

Location: United States

Posted: August 01, 2003 at 4:30 AM / IP Logged

i have a couple of relays set up like this

pin 30 of both relays are connected the the leads from a motor so that it can turn one way when triggered from one relay and turn the other way when triggered from the other relay. the triggers are constant and only one trigger is on at any given time. the motor turns clockwise 90 degrees with one trigger and comes to a stop. it returns to its original posistion with the other trigger and stops. everything works fine, but there is one problem. eventhough the motor has stopped, im afraid that relays will drain my battery. is there a way to prevent the relays from drawing any more current once the motor has stopped... kind of like how a window module turns off once the windows has gone all the way up. thanks for any suggestions.

auex

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Joined: December 23, 2002

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Posted: August 01, 2003 at 10:53 PM / IP Logged

If the relays you are using are hooked up exactly as the diagram then there is no current draw when you are not using them. While there may be a power source there is no ground, there for nothing is going through them when you are not pushing the switch.

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greedy111

Member - Posts: 24

Joined: August 01, 2003

Location: United States

Posted: August 03, 2003 at 8:54 PM / IP Logged

the relays are hooked up exactly as shown. the problem is that there is a current draw because the ground is constant once activated. it is not coming from a switch, but the starter kill output from the alarm which is a constant ground.

xetmes

Silver - Posts: 586

Joined: May 18, 2003

Posted: August 04, 2003 at 7:59 AM / IP Logged

yea i see what you are saying, you need a way to stop the feed once the motor has stopped since the current draw goes up even higher. ill try to think of something, although you could try using a wndow module to see if that works. same basic concept

greedy111

Member - Posts: 24

Joined: August 01, 2003

Location: United States

Posted: August 06, 2003 at 11:24 PM / IP Logged

i thought of using the window moudule and im sure it would probably work. but i have two window modules for the windows already and im running out of space under my dash. so i'd like to keep this as small as possible. is there a way for me to stop the current once the motor stops and the current goes up?

go2pac

Copper - Posts: 179

Joined: May 04, 2002

Location: California, United States

Posted: August 07, 2003 at 1:51 PM / IP Logged

You said the motor stops, what is making it stop? Limit switches? Or basically it stop movement but the motors are still being energized. A couple of limit switches can resolve the problem with the relays.

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greedy111

Member - Posts: 24

Joined: August 01, 2003

Location: United States

Posted: August 13, 2003 at 6:35 PM / IP Logged

Once the motors turn as far as they can, they automatically turn off. But its not the motor that i am trying to turn off. I want to be able to turn off the relays once the motors have stopped. the coil in the relay is constantly on even though the motor has stopped moving causing the relay to get warm. Because of this, im afraid the relay will drain my battery.

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turn off relay

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