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SE Nebraska | I have 2 of these banjo ball valves on the fertilizer pump on my planter. They either supply fertilizer or shut off and then bypass the fertilizer back through the pump. This is on a Deere planter and I am running it on a case in tractor. In order to control them they must all be controlled by a Deere controller so that is not an option for me. I am going to make a simple 2 switch box so that I can shut each valve off. I don't understand the wiring diagram on the side of the valve. My plan was just to have an on/off switch, but will that work the way the diagram shows. Do I need a 3 position switch, power open/ power close/ and a middle position that doesn't do anything?
Edit to add: There are 3 wires on each valve red white and black.
Edited by duishay 3/25/2017 08:18
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Northeast Nebraska | Red will have constant 12 volts.
Black will be ground.
White will switch 12 volts off and on to control the valve
So just hook up battery voltage to white and red and put your switch inline on the white wire |
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Amherst WI | All you need is a on/off switch.
The red wire is constant power and that should come on with your key switch or it will drain the battery. |
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Near Intersection of I-35 & I-90 Southern Mn. | The above are correct.
What is possibly confusing you is the fact that there are four wires and it appears that three should suffice. The reason the drawing shows the black and green being tied together to ground is that this will work with a simple switch as shown. This fourth wire could be used in other situations so that connecting/disconnecting it to ground would cause action. This would rarely be used.
Inside the motor area there is a Double Pole Double Throw relay, that applies power to the motor. The polarity going to the motor changes based on the position of the relay. Limit switches are also used to stop the action.
Since the motor needs power/ground to run the motor, it needs both to move. The white wire is the trigger to control the relay so it turns the motor one direction or the other. With the white wire "hot" the relay moves so power turns the motor to open the valve but is stopped by the limit switch. With no power to the white wire, the relay relaxes and sends the opposite polarity to the motor so it turns the other direction until it reaches that limit switch.
I wouldn't be overly concerned about key switched power since the motor will not be drawing power when it reaches either limit switch. I'm not saying that key switched power is a bad idea but you must find a source that can handle the load of all valves cycling at the same time as if often the case with a sprayer.
In an Ag Leader system, the power to run the ball valves and the modules are always "hot".
Edited by tedbear 3/25/2017 09:10
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Floyd County, Iowa | hinfarm - 3/25/2017 08:29
All you need is a on/off switch.
The red wire is constant power and that should come on with your key switch or it will drain the battery.
Not sure that's quite correct (the battery drain part).
They're not like solenoids that draw power to hold them open.
Mine don't draw power once they are either open or closed. Only draw power for the actual opening or closing action, then they are idle.
But still would be good idea to have them on keyed power. |
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Amherst WI | I bought a Patriot that always had a battery drain. I had to redo the valves and found that was the issue is that the hot was always on. |
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Eastern ND | These valves are power open/ power close. Older valves with the magnets on them were power open/ spring close.
The red wire needs to go to power that is constant on +. If You turn off the key when You have the valve open (white wire powered), the valve will stay open. If you have the red to constant on + the valve will close when the key is turned off (power removed from white wire).
It is good to wire it correctly, because if someone shuts it off with the valve open, and then for some reason unhooks the wires and starts the pump, it will not spray out of the boom.
It will not drain the battery, unless the valve is bad. Once the valve closes, there is no electricity use. |
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Banjo ball valve wiring?
