Electrical Circuit Help Needed

[ampsucker]

ok, so if we understand this right:

switch is off, green is on (due to priority, it is on when no voltage applied).

switch in position "a", green is energized shutting it off and yellow is energized turning it on.

switch in position "b", green is energized shutting it off and blue is energized turning it on.

if that is what you need, larry's diagram is essentially correct. i wouldn't think you would need the diodes, though, unless your switch is seriously undersized for the solenoid current draws.

 

[Spudland_Dave]

You got the operation of the switch exactly correct.

Switch is rated for 20 Amps @ 12v and each solenoid draws 1.5 Amps according to SC...so even running 2 at a time thru the switch shouldnt be an issue.

 

[Wayne County Hose]

US - Electronic Components Distributor | Newark.com. <------- I would find a DPDT switch that would satisfy the factory look. Other than that, I would use 2 relays, energize one for green/yellow, energize the other for green/blue. You can't put just any diode in that circuit.

The diodes Larry drew in function like suppressors and many times are factory installed. They help to isolate the rest of the tractor's electronics from the electrical noise of the coils.

 

[Spudland_Dave]

I would find a DPDT switch that would satisfy the factory look.

Well, I found the exact factory MFG/Source for the switch, but problem is nobody has em in stock and one of the sources/electronic warehouses want a minimum order of 12....
Wouldnt be bad if I knew people out there would want some "Factory" Deere Switches without any printing...

 

[Wayne County Hose]

Well, I found the exact factory MFG/Source for the switch, but problem is nobody has em in stock and one of the sources/electronic warehouses want a minimum order of 12....
Wouldnt be bad if I knew people out there would want some "Factory" Deere Switches without any printing...

Can you post a pic? Maybe a mfg catalog/part #? I have a few aftermarket electronics sources.

 

[gemini5362]

I think kenny d has the right answer also. I cannot see his diagram that well to make sure. Basically get two diodes. Depending on how much current the solenoid powers make sure you get them to handle that much current. hook the +12 volts to the center of the switch. Hook the yellow solenoid to one side of the switch. hook a diode up with the yellow wire so that the banded end is pointing away from the switch. hook the blue wire up to the other side of the switch hook another diode up with the blue wire so that the banded end is pointing away from the switch. you now should have a switch with a yellow wire and a diode on one side the diode has the banded side not hooked to anything. The switch also has a blue wire and a diode hooked to the other side. the banded end of this diode is also not hooked to anything. Now then hook a piece of green wire (maintaining color code here but any color could work) to the unconnected end of the two diodes. This wire needs to go to both diodes. Hook your green solenoid to this wire. hook the other side of all three solenoids to a ground wire and you are done.

 

[Superduper]

Forget all the diode routes. All you need to do is use that SPDT switch to power ONE SINGLE DPDT RELAY. That is all you need. Problem solved.

Switch position A will power Relay position A, which has TWO POLES!
Switch position B will power Relay position B, which has TWO POLES!

Does that make sense to anyone?

 

[Spudland_Dave]

Super Duper.....Thats exactly what I needed....looking at it and thinkng about it, Its my best bet...THANKS!

 

[Wayne County Hose]

Forget all the diode routes. All you need to do is use that SPDT switch to power ONE SINGLE DPDT RELAY. That is all you need. Problem solved.

Switch position A will power Relay position A, which has TWO POLES!
Switch position B will power Relay position B, which has TWO POLES!

Does that make sense to anyone?

This would have one set of coils always energized. 2 relays as described in my above post would only energize the coils when they are needed.

 

[Spudland_Dave]

This would have one set of coils always energized. 2 relays as described in my above post would only energize the coils when they are needed.

Thats the route I was thinking before SuperDuper's post... Get 2 DPST Relays and only energize them as needed...
Hmm...I think I'm gonna be making a Mock Up using some lightbulbs in the basement before doing anything on the Tractor...