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Two Triggers, one output


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pthermes 
Member - Posts: 3
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Joined: May 31, 2006
Location: United States
Posted: May 31, 2006 at 12:30 PM / IP Logged  

Hi - I'd like to control my footwell neons in the following manner.  If anyone could help me with a relay diagram it would be greatly appreciated.

Come on with the door open (negative trigger), and also come on if the parking lights are flipped on (positive trigger).  I know I can do this with two relays, but do I need to use diodes across the coils or anwhere else?

Thanks

Paul

Hoptup32 
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Joined: December 25, 2004
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Posted: May 31, 2006 at 9:00 PM / IP Logged  

Here's a simple diagram to use both triggers, no diodes required if you use the same constant 12v fused power source.

Two Triggers, one output -- posted image.

pthermes 
Member - Posts: 3
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Joined: May 31, 2006
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Posted: May 31, 2006 at 9:30 PM / IP Logged  

Wouldn't this work also??  Or would this cause some problems?Two Triggers, one output -- posted image.

KPierson 
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Posted: June 01, 2006 at 1:31 PM / IP Logged  

You should be able to do it with one relay.

Pin 86 - 12vdc

Pin 85 - (-)Door pin

Pin 30 -(+) 12vdc output to neons

Pin 87A (+)12vdc parking light signal
Pin 87A (+)12vdc

When the door is closed and the parking lights are off no voltage will flow to your neons.

When you open the door it will energize the relay and the 12vdc will run the neons.

If the door is closed and you turn on your parking lights the parking light signal will run the neons.

Kevin Pierson
KPierson 
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Posted: June 01, 2006 at 1:31 PM / IP Logged  

You should be able to do it with one relay.

Pin 86 - 12vdc

Pin 85 - (-)Door pin

Pin 30 -(+) 12vdc output to neons

Pin 87A (+)12vdc parking light signal
Pin 87A (+)12vdc

When the door is closed and the parking lights are off no voltage will flow to your neons.

When you open the door it will energize the relay and the 12vdc will run the neons.

If the door is closed and you turn on your parking lights the parking light signal will run the neons.

Kevin Pierson
djfearny2 
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Posted: June 01, 2006 at 1:48 PM / IP Logged  
k peirson is right you can do it with one relay however one thing is wrong.
Pin 86 - 12vdc
Pin 85 - (-)Door pin
Pin 30 -(+) 12vdc output to neons
Pin 87A (+)12vdc parking light signal
Pin 87 (+)12vdc (this was the mistake)
Jon
Installer/Help Technician
---coral springs florida---
mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.
KPierson 
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Posted: June 01, 2006 at 2:28 PM / IP Logged  

what, your relays don't have two 87As?????? 

Sorry about that.

Kevin Pierson
pthermes 
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Member spacespace
Joined: May 31, 2006
Location: United States
Posted: June 01, 2006 at 5:01 PM / IP Logged  

Thanks for all the replies.  I don't want to do it with one relay because I plan on adding some other items to the circuit and think it would be too much of a draw on the parking light circuit.  

Thanks

KPierson 
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Posted: June 01, 2006 at 5:52 PM / IP Logged  

If that is the case I would go with the first diagram.  The 2nd one will work, but its more complicated and tehre is no need to connect the relays together.  For troubleshooting purposes I would keep all relays as seperate as possible.

Kevin Pierson
KPierson 
Platinum - Posts: 3,527
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Joined: April 14, 2005
Location: Ohio, United States
Posted: June 01, 2006 at 5:52 PM / IP Logged  

If that is the case I would go with the first diagram.  The 2nd one will work, but its more complicated and tehre is no need to connect the relays together.  For troubleshooting purposes I would keep all relays as seperate as possible.

Kevin Pierson
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