Hi,
I had started a post, but I didn't get a response so though I would repost.
Background:
the BMS system had 3 cells with voltages readings around 0.006 to 0.6 volts. Now there are 6 cells reading the same. When I read take the cells out of the BMS chain and read the voltages with a meter, the individual cells are reading 2.2 volts as expected.
These cells are causing under voltage alarms. Once when I forced a balance on the cells, the voltage readings appeared to become correct. The next day the reading were again low. but using a meter the individual cells readings were expected.
The last couple of questions asked were:
Can you do this for me?
1. Show me the cell measurements of each cell.
2. Go to PL455A cell balancing register and provide me the register value.
Here are the answers to your questions:
1) Cell values:
1) 2.234
2)2.136
3) 2.287
4) 2.258
6) 2.2189
7) 2.21134
8) 2.231
9) 2.331
10) 2.134
11) 2.2089
12) 0.0061
13)0.0060
14) 0,067
15) 2.214
16) 2.215
*Note - In previous measurements the voltages measured for 12, 13, 14 were ok, but cells 4, 5, 6, 7, 8 were in the 0.006 range. So these low voltages appear to move around.
2) Register values for:
register 13 was 0x10
register 14 0x18
Any advice is appreciated.
Malcolm
