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09-28-2018, 12:06 PM | #1 |
Not Yet Wild
Join Date: Apr 2016
Location: Nebraska
Posts: 43
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voltage Reducer Ground
Installed a voltage reducer on my 48v 2010 club cart. I guess I thought it was very easy install. Two wires connect to carts batter just as shown on directions. Wired up my usb charger plug and a switch for my lights and went to plug in unit and nothing. Can I ground my switch and USB to the frame on the cart or does that aluminium not ground properly?
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09-28-2018, 12:33 PM | #2 |
Gone Wild
Join Date: Sep 2016
Posts: 515
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Re: voltage Reducer Ground
Never ground to the cart frame. Wire the negative wire on the 48 volt input side to the B- connection on the controller. This establishes a single grounding point for the entire system.
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09-28-2018, 03:31 PM | #3 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: voltage Reducer Ground
And pick you up a buss bar to run a single Main Neg (-) too and then all of your 12v accessories can be terminated to that buss bar for all your needs....
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10-03-2018, 07:44 AM | #4 |
Not Yet Wild
Join Date: Apr 2016
Location: Nebraska
Posts: 43
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Re: voltage Reducer Ground
Thanks guys, I have a buss bar, but it looks like I have to split the incoming wires to every open spot I want to wire up? Did a get the wrong type of buss bar?
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10-03-2018, 08:36 AM | #5 |
Just Gone
Join Date: Sep 2015
Location: North Carolina
Posts: 3,549
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Re: voltage Reducer Ground
Every 12V accessory you add will have a ground and that ground will go to the buss bar. The power side will go to a fuse panel.
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10-04-2018, 05:05 AM | #6 | |
Gone Wild
Join Date: Jan 2017
Location: Queensland Australia
Posts: 1,332
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Re: voltage Reducer Ground
Quote:
The 12V leads from the reducer will go to the accessories, usually via a bus-bar for the negatives and a fuse box for the positives. Each accessory positive will go to the +12V from the reducer and each accessory negative will go back to the -12V from the reducer. As others have said, the chassis on a golf cart is never used to ground the accessories (unlike a car) but each accessory has a positive and a negative cable going back TO THE REDUCER. Think of the reducer as a 12V battery and all the accessories go back to it. It is only the reducer itself that is connected to the 48V system. |
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08-20-2020, 01:20 PM | #7 |
Not Yet Wild
Join Date: May 2020
Location: West Virginia
Posts: 67
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Re: voltage Reducer Ground
Help!!! I finally got around to putting the negative of the voltage reducer to the B- of the controller. I drove for maybe 400 yards then parked for a minute, and now nothing.
The solenoid will not even engage. It is completely dead. The batteries are fully charged. The controller is giving me a pre-charge failure and a shutdown error code. I read that this means the B+ voltage is different than the KSU voltage? Is that correct? What did I do to cause this and what can I do to fix this? |
08-20-2020, 08:51 PM | #8 |
Not Yet Wild
Join Date: Jun 2020
Location: Orlando
Posts: 49
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Re: voltage Reducer Ground
You should connect it to the main + and - of the battery pack, not to the controller.
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08-20-2020, 09:07 PM | #9 |
Gone Insane
Join Date: Oct 2016
Location: Richmond, VA
Posts: 14,214
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Re: voltage Reducer Ground
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08-21-2020, 08:01 AM | #10 |
Not Yet Wild
Join Date: Jun 2020
Location: Orlando
Posts: 49
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Re: voltage Reducer Ground
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