06-02-2020, 06:53 AM | #11 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Zeva BMS Not Working
I think a couple of pictures may help more, in the video it looks like the Zeva B+ jumper is coming from terminal #11 instead of #10.
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06-02-2020, 11:14 AM | #12 | |
Not Yet Wild
Join Date: Nov 2019
Location: Indio, CA
Posts: 49
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Re: Zeva BMS Not Working
Quote:
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06-02-2020, 11:15 AM | #13 |
Gone Wild
Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,204
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Re: Zeva BMS Not Working
I've taken a couple of screen shots of his video. The first is the battery pack itself, and the second is the ZEVA. Now.....just "doing the math" here....if he has a total of 11 contact points on the battery pack......5 wires to the center of each leaf and then 3 each on the pos & neg, that would total 11. So....if we have 11 contact points why is the ZEVA unit using 12 slots? If the ZEVA begins with "00" as mine does....should he not stop at slot 10?
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06-02-2020, 11:19 AM | #14 |
Not Yet Wild
Join Date: Nov 2019
Location: Indio, CA
Posts: 49
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Re: Zeva BMS Not Working
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06-02-2020, 11:34 AM | #15 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Zeva BMS Not Working
It was hard to focus on the video but it does appear the Zeva is not getting the proper power on B+.
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06-02-2020, 11:35 AM | #16 | |
Not Yet Wild
Join Date: Nov 2019
Location: Indio, CA
Posts: 49
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Re: Zeva BMS Not Working
Quote:
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06-02-2020, 11:52 AM | #17 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Zeva BMS Not Working
Sorry, I forgot You only have 10 cells and I even pointed out on a previous thread the need to do some different wiring
You don't have anything grounding the Sleep terminal do you? |
06-02-2020, 12:28 PM | #18 |
Not Yet Wild
Join Date: Nov 2019
Location: Indio, CA
Posts: 49
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Re: Zeva BMS Not Working
No, I was hoping to add that on later. If I get the BMS going, do you have any suggestions?
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06-02-2020, 02:00 PM | #19 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Zeva BMS Not Working
If the voltage increases by 3.7v (your current cell voltage) as you move the probe on the BMS connector and You get full pack voltage between B- and B+, that should be all it takes to power the unit.
Temporarily disconnect Your CAN bus (at least the +12v terminal) in case a short in that wiring is preventing the BMS from powering up. |
06-03-2020, 09:30 PM | #20 | |
Not Yet Wild
Join Date: Nov 2019
Location: Indio, CA
Posts: 49
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Re: Zeva BMS Not Working
Quote:
I do have a separate switch that powers the 12v accessories on and off...that doesn't seem to make a difference either way |
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