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Re: Old BMS Hardware Thread

Posted: Wed Oct 10, 2012 1:53 am
by retepsnikrep
As Greg has said the slave to battery wiring is clearly wrong.

Please bring the whole car and batteries down to my workshop at Thirsk if at all possible.

Peter

Re: Old BMS Hardware Thread

Posted: Wed Oct 10, 2012 7:53 pm
by Chris Austen
We will try sort that out and let you know. we may only be able to bring the battery packs.

There are several problems with the wiring which we need to sort.

Re: Old BMS Hardware Thread

Posted: Fri Oct 12, 2012 2:39 pm
by Chris Austen
We have decided to replace all the wiring. which we are currently in the middle of.

Peter we have a van hired to come to yours on Wednesday. What time would you like us to get there?

Re: Old BMS Hardware Thread

Posted: Fri Oct 12, 2012 3:42 pm
by retepsnikrep
As early as you like, sounds like a long day in store. :shock: Say 10:00 if you can make it.

Re: Old BMS Hardware Thread

Posted: Mon Oct 15, 2012 4:09 pm
by Chris Austen
We should hopefully get there for 10. Can you send me your address please. chris.austen@ncl.ac.uk

Thanks for helping us.

p.s. Our SV2000's came today.

Chris

Re: Old BMS Hardware Thread

Posted: Wed Oct 17, 2012 10:01 pm
by GregsGarage
Chris Austen wrote:We should hopefully get there for 10. Can you send me your address please. chris.austen@ncl.ac.uk

Thanks for helping us.

p.s. Our SV2000's came today.

Chris


How did it go today?

Greg

Re: Old BMS Hardware Thread

Posted: Thu Oct 18, 2012 4:31 am
by retepsnikrep
A long hard day.

Solved a few major BMS wiring bugs :shock: Replaced a couple of optos and a couple of suspect pics.
Reprogrammed all slaves with a version i am using.

Now operating on all 66 channels but with a constant alarm due to watchdog and or master hardware issue.
Not enough time to fix that but i think hardware (resistor) change at master end and software tweaking should sort it.

The team have no chance of making the deadline though as too much remains to be done on rest of the car :(
It's a total wiring nightmare.

Re: Old BMS Hardware Thread

Posted: Fri Oct 19, 2012 7:20 pm
by Chris Austen
Yes a big thanks to Peter for helping us. We now actually have an idea of how to get it working. SOC randomly started to work today as well which was nice even if it was for only a few mins.

Which resistor do you think might need changing?

Re: Old BMS Hardware Thread

Posted: Sat Oct 20, 2012 4:43 am
by retepsnikrep
On the master board, master bus input terminals check and report the values of the resistors.

Re: Old BMS Hardware Thread

Posted: Mon Oct 29, 2012 9:12 pm
by Chris Austen
Sorry to take so long....

R8 & R34?

510 & 4.7k respectively

in fact il attach the full list as well.