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10-14-2015, 02:47 PM
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#11 |
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Not Yet Wild
Join Date: Oct 2015
Posts: 8
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Re: Reversing contactor problems
Thanks guys, before I ask any dumb questions, here is a pic of the setup, and then me identifying on a sheet of paper. I am not clear on what "long cables" are, maybe the S and A cables? Look at this and see if it tells what you need to know.
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10-14-2015, 02:48 PM
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#12 |
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Not Yet Wild
Join Date: Oct 2015
Posts: 8
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Re: Reversing contactor problems
And now the actual picture.
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10-14-2015, 05:28 PM
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#13 |
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Gone Wild
 Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Reversing contactor problems
The short cables look nice, but it is hard to tell the gauge from a picture, just make sure they are the same diameter as the others.
Unfortunately the assembly is not optimized for forward direction. if You move the cables as I indicated in the revised sketch, ALL short jumpers will be OFF the circuit in forward. They will no longer get hot. It is also important that S1, S2, M and A2 (what I call the long cables) go in first, then the jumpers on top. The current will flow through ALL 4 of the small jumpers in reverse, but hopefully You don't spend much time in reverse. |
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10-14-2015, 07:37 PM
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#14 |
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Not Yet Wild
Join Date: Oct 2015
Posts: 8
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Re: Reversing contactor problems
That is awesome Sergio, thanks so much. So from your sketch all I am doing is moving two cables to the new location and everything else is the same, looks easy enough!!! I will report back tomorrow when I make the change.
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10-14-2015, 09:41 PM
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#15 |
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Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Reversing contactor problems
That is it, but make sure the cables from M and A2 are in direct contact with the solenoid stud and that the short jumper is on top of those cables.
You want to have the least amount of connections, which translates to the least resistance in the current path. Honestly the setup looks pretty nice, they just did not understand enough about how the current flows in the circuit to optimized it. |
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10-15-2015, 09:23 AM
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#16 |
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Gone Wild
Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,214
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Re: Reversing contactor problems
Sergio, That's why when I buy the HD contactors from ScottyB.....I read the directions a few times to make sure I got 'em right. This "stuff" does matter. Here's a pic of my SD contactor. The colored tape on the wires actually does mean something.....just don't ask me "what" right now. BTW....this pic was taken prior to my upgrading to ScottyB's 2ga soldered and crimped wires. Just wanted to make that clear that the wires in the pic are not his. Full disclosure 'n all.
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10-15-2015, 12:41 PM
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#17 |
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Not Yet Wild
Join Date: Oct 2015
Posts: 8
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Re: Reversing contactor problems
Worked like a charm Sergio!! Thanks again for your input. Let's hope this solves the problem long term.
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