Near Intersection of I-35 & I-90 Southern Mn. | Yes, that's a good point. I hadn't thought through that as I was hoping not to have to do it.
My thinking is as follows but I'm open to any suggestions or advice. With my current wiring, the gray connectors are split several times and provide the High current power for four modules, the Clutch Control harness to operate 24 SureVacs and the power to cycle 4 TeeJet ball valves. The black circuit feeds the Injection module which has the pump load on it.
The black circuit should be adequate to run the Injection portion. The gray side possibly could use some help at times.
I'm thinking of making a lead to the new "extra" battery on the back of the planter by using a female two pole Deutsch connector that would mate with one of the gray connectors from the tractor to the positive terminal of the extra battery. This short lead would have a fuse in it. This could be thought of as power IN to the planter battery. It's purpose would be to help out and charge the planter battery.
I would have another lead coming OUT of the positive terminal of the planter battery with a fuse in it which would connect to the modules etc. I'm thinking that if there were a module failure or overload at the rear of the planter this fuse would blow since all the power to the various modules goes through that fuse.
If there were a dead short somewhere along the line between the tractor and the planter battery, that point would be fed from both sides so to speak and I suppose since the tractor batteries and the extra battery are wired in parallel the trip point might be around double. If this happens then the cable has already been damaged so I don't know if this is of any more real concern than would be normal without the planter battery.
I suppose a way around this would be to have a large diode in the line right at the planter battery so that it could never backfeed towards the tractor.
That is essentially what I did with my former planter tractor in the cab so that my Trimble 332 would not drop out and lose Omni Convergence when starting the tractor. The small garden tractor battery was placed beside the seat. It was charged by the tractor but that lead had a diode in it. The GPS was connected to the small battery and ran off of it but it was being supplied by the tractor. When the tractor was started, no load was imposed on the small battery due to the diode and the 332 lived off of the small battery until the starter was released.
Edited by tedbear 4/6/2014 08:16
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Agleader power cable to modules.
