Electrical Relay Question - Kawasaki Versys Forum
 
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post #1 of 16 (permalink) Old 02-29-2012, 08:15 PM Thread Starter
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Electrical Relay Question

Relay question

I have a start/stop/kill switch connected to a relay for my Vision X driving lights.

I would like to also have it so that if I turn my high beam on, they come on automatically.

It is possible to use some electronic component (e.g. a diode) so I can run a wire from the high beam to the same input on the relay that my switch connects to, or do I have to add another relay whose output can also power the lights?

The trick is that, on low beam, I don't want the 12v coming from the switch to power the high beam if the VisionX lights are on.
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post #2 of 16 (permalink) Old 02-29-2012, 10:13 PM Thread Starter
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It seems you can have each 12V trigger line go into a diode before connecting to the relay.

I might look for a 3A version of this:

http://www.radioshack.com/product/in...ductId=2036269

like this:

http://www.radioshack.com/product/in...ductId=2062577

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post #3 of 16 (permalink) Old 03-01-2012, 12:17 AM
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Vision X driving lights, what the load like.
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post #4 of 16 (permalink) Old 03-01-2012, 05:58 AM Thread Starter
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Vision X driving lights, what the load like.
10W ea
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post #5 of 16 (permalink) Old 03-02-2012, 11:34 PM Thread Starter
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It works !

Before, my LED driving lights only came on when the dedicated switch sent 12v to the driving light relay. Now, when I turn on my high beam, the LEDs come on automatically.

I added a parallel pair of 3A Radio Shack diodes on the existing 12v line from the switch to the driving light relay. Then, I ran a wire from the high beam to another pair of diodes which connect to the same trigger input on the relay.

The diodes keep the power from the LED switch and the high-beam separate.

Last edited by hdatontodo; 03-02-2012 at 11:39 PM.
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post #6 of 16 (permalink) Old 03-03-2012, 09:09 AM
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It works !

Before, my LED driving lights only came on when the dedicated switch sent 12v to the driving light relay. Now, when I turn on my high beam, the LEDs come on automatically.

I added a parallel pair of 3A Radio Shack diodes on the existing 12v line from the switch to the driving light relay. Then, I ran a wire from the high beam to another pair of diodes which connect to the same trigger input on the relay.

The diodes keep the power from the LED switch and the high-beam separate.
Hdatontodo, Id like to wire something similar, but am having trouble finding detailed "how tos" for doing this, specifically the portion around the tying into an existing line. Did you use anything for reference or are you just handy around wiring? If anyone has some good youtube videos or something I would appreciate it.
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post #7 of 16 (permalink) Old 03-03-2012, 09:19 AM
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congratulations!
can you please put some pictures and a small diagram for the less electrically inclined ?
thx!!

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post #8 of 16 (permalink) Old 03-03-2012, 09:49 AM Thread Starter
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Attached is a quick sketch (scanned to pdf) of what I did.

I added a link on my website (available during daytime) http://www.tontodonato.com/Versys2.htm
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Last edited by hdatontodo; 03-03-2012 at 10:03 AM.
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post #9 of 16 (permalink) Old 03-03-2012, 10:09 AM
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Thanks for sharing and just a Question on pairing the LED with High beam. Just in case you dont want to use the high beam but you want the LED to come on, than are you able to operate the LED alone?

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post #10 of 16 (permalink) Old 03-03-2012, 10:16 AM Thread Starter
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...Just in case you dont want to use the high beam but you want the LED to come on, than are you able to operate the LED alone?
Yes. That is the way it was wired before I added the 2nd way to trigger the lights. I have an on/off/kill switch on the handlebar which connects to a relay for the lights. In the diagram, you can see the two inputs feeding the two pairs of diodes to the relay's single switched input.

I wanted to be able to use them as daytime running lights.

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post #11 of 16 (permalink) Old 03-03-2012, 10:18 AM
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Yes. That is the way it was wired before I added the 2nd way to trigger the lights. I have an on/off/kill switch on the handlebar which connects to a relay for the lights.
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post #12 of 16 (permalink) Old 03-03-2012, 10:30 AM Thread Starter
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My handlebar switch is this (reused from a prior bike)

http://www.bikebandit.com/trail-tech...LAID=526760719

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post #13 of 16 (permalink) Old 03-03-2012, 10:37 AM
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Thx!!!
I wanted to do something like that with the connection of the second projector.
looking at the diagram, the diodes block the 12V to go from one source to another. Why did you put 2 diodes? ( sorry, my electrical knowledge is basic)
if you have both sources ON ( switch and high beam), the input in the relay is still 12V , right?

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post #14 of 16 (permalink) Old 03-03-2012, 10:55 AM Thread Starter
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...looking at the diagram, the diodes block the 12V to go from one source to another. Why did you put 2 diodes? ( sorry, my electrical knowledge is basic)
if you have both sources ON ( switch and high beam), the input in the relay is still 12V , right?
redundancy and higher capacity -- it was suggested by someone on http://www.ironbutt.com

12v -- when you connect two of the same power sources in parallel, the voltage is the same (like when you connect jumper cables between 2 cars)

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post #15 of 16 (permalink) Old 03-03-2012, 10:21 PM Thread Starter
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Someone on the Iron Butt website who does electrical for emergency vehicles made some notes about the my wiring solution and also provided a no-diode option where 2 relays, one triggered by the switch and one by the highbeam, feed the same LED light circuit.
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post #16 of 16 (permalink) Old 03-05-2012, 10:53 AM Thread Starter
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Some other feedback I've received:

1>
What I have found works best for me is to have the [L&R] lights on separate switches. The rationale:

The right driving light can be aimed in such a way to light up the right hand ditch and right side of the road, thereby not needing to be switched on and off when traffic approaches and giving you a more consistent animal visibility defense on your closest to the forest rats side.

The left light is aimed as your main down the road and a bit to the left driving light and is the only one you need to be turning on and off when traffic approaches.

2>
My preference for a driving light switch is to wire in a relay, and then power the switching lead of the relay with a SPDT /Center Off switch, using the center terminal.

Then you connect one terminal to the high beam circuit, and the other to the ignition circuit.

Now you can choose to either have the light come on with the ignition, the high beam, or stay off.

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