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Last modified by Admin on 2025/03/18 13:04
From version 11.1
edited by Admin
on 2025/03/18 12:28
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To version 1.2
edited by Admin
on 2024/12/02 14:20
Change comment: Update document after refactoring.

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1 -Battery management systems.BMS Logic 2\.0.WebHome
1 +drafts.BMS Logic 2\.0.WebHome
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1 -(% data-numbered-headings-start="2" style="--numbered-headings-start: 1;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 -= Installation and connection =
1 +== ​​​​​2.1 Installation procedure ==
3 3  
4 -== ​​​​​Safety rules ==
5 -
6 -Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.
7 -
8 -It is not recommended to use the system in batteries formed by several series of cells connected in parallel. To increase capacity, it is recommended to connect several cells in parallel groups, and then connect the groups in series.
9 -
10 -(% class="box warningmessage" %)
11 -(((
12 -The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.
13 -)))
14 -
15 -== Installation procedure ==
16 -
17 17  The mounting area of the BMS Logic 2.0 must be protected from mechanical particles (dust, dirt, large objects) and water. The BMS Logic 2.0 is recommended to be placed close to the cells it controls, but away from high current circuits to reduce interference to measuring circuits and increase overall reliability of installation.
18 18  
19 19  The installation site must provide convenient access for subsequent connection to the device’s headers.
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25 25  [[image:1733148558528-694.png||data-xwiki-image-style-alignment="center" height="310" width="504"]]
26 26  
27 27  |**Parameter**|**Value**
28 -|(((
14 +| (((
29 29  Overall dimensions (length × width × height), mm
30 30  )))|125 × 84 × 25
31 31  |Mounting dimensions (length × width), mm|115 × 50
32 32  |Mounting holes|M4
19 +|Headers X1-X3 type|Molex series Mini-Fit
33 33  
34 -== Headers ==
21 +== 2.2 Headers ==
35 35  
36 36  The BMS Logic 2.0 is designed to measure battery parameters – temperature (for a stack of 12 cells there are 2 temperature sensors) and the voltages of 12 cells.
37 37  
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40 40  (% class="box warningmessage" %)
41 41  (((
42 42  **Attention!**
43 -All headers are shown from the device side!
30 +All connectors are shown from the side of connecting to the device!
44 44  )))
45 45  
46 -=== X1 – header for cells and temperature sensors ===
33 +=== 2.2.1 X1 – header for cells and temperature sensors[[image:1733148735564-962.png||data-xwiki-image-style-alignment="center" height="84" width="218"]] ===
47 47  
48 -(% class="wikigeneratedid" %)
49 -Receptacle Housing: Molex 39012160. Terminals: Molex 5556
50 -
51 -
52 -
53 -
54 -
55 -
56 -
57 -
58 -(% class="wikigeneratedid" %)
59 -[[image:1740053130023-265.png||data-xwiki-image-style-alignment="center"]]
60 -
61 61  |**Pin**|**Name**|**Description**
62 62  |**1**|**TEMP2**|Signal from the thermistor #2
63 63  |**2**|**TEMPC**|Ground of the thermistors
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76 76  |**15**|**C4**|Cell #4
77 77  |**16**|**C2**|Cell #2
78 78  
79 -=== X2, X3 – headers for communication with BMS Main ===
53 +=== 2.2.2 X2, X3 – headers for communication with BMS Main ===
80 80  
81 -Receptacle Housing: Molex 39012040. Terminals: Molex 5556
55 +[[image:1733148758240-550.jpeg||data-xwiki-image-style-alignment="center" height="86" width="344"]]
82 82  
83 -[[image:1740053153731-112.png||data-xwiki-image-style-alignment="center"]]
84 -
85 85  |**Pin**|**Name**|**Description**
86 86  |**1**|**RS485_A**|RS-485 line A for communication with the BMS Main
87 87  |**2**|**RS485_B**|RS-485 line B for communication with the BMS Main
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88 88  |**3**|**+5V**|Supply voltage 5V
89 89  |**4**|**GND**|Ground
90 90  
91 -== (% style="color:#333333" %)Switches and indicators(%%) ==
63 +== (% style="color:#333333" %)2.3 Switches and indicators(%%) ==
92 92  
93 -=== SWD1 – address switch ===
65 +=== 2.3.1 SWD1 – address switch ===
94 94  
95 95  |**Switch number**|**Description**
96 96  |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
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100 100  |**5**|The fifth bit of the address. Position ON - bit is 1
101 101  |**6**|The sixth (the highest) bit of the address. Position ON - bit is 1
102 102  
103 -=== DS1 – mode indicator ===
75 +=== 2.3.2 DS1 – mode indicator ===
104 104  
105 105  |**State**|**Description**
106 106  |**Blinking**|Communication between the BMS Main and the device is established
107 107  |**No light**|There is no communication between the BMS Main and the device
108 108  
109 -== Connection procedure ==
81 +== 2.4 Connection procedure ==
110 110  
111 -=== Connection to BMS Main ===
83 +=== 2.4.1 Connection to BMS Main ===
112 112  
113 113  To connect the BMS Main to BMS Logic 2.0 do the following steps:
114 114  
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116 116  1. Connect the BMS Logic 2.0 to each other (X2 -> X3).
117 117  1. Install jumper P1 on the last BMS Logic 2.0 in the chain.
118 118  
119 -(% class="box infomessage" %)
120 -(((
121 -**Recommendations:**
122 -~1. The total cable length (the sum of the lengths of all cables) between the BMS Main and the last BMS Logic 2.0 should not exceed 500 meters.
123 -2. Make all connections with the same cable.
124 -3. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
125 -)))
91 +Recommendations:
126 126  
127 -=== Connecting battery cells ===
93 +1. The total cable length (the sum of the lengths of all cables) between the BMS Main and the last BMS Logic 2.0 should not exceed 500 meters.
94 +1. Make all connections with the same cable.
95 +1. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
128 128  
97 +=== 2.4.2 Connecting battery cells ===
98 +
129 129  To connect the battery cells, follow the picture below. Incorrect connection of the cells can damage the BMS Logic 2.0.
130 130  
131 131  Begin the connection with the negative of the battery: the "V-" of the first BMS Logic 2.0 is connected to "B-", then the first cell (C1) of the battery is connected, then the second (C2), etc. The “V-“ of the next BMS Logic 2.0 is connected to the C12 of the previous BMS Logic 2.0. If not all inputs of the cells are used, then the remaining inputs are connected to the cell with the highest potential.
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139 139  Connect the battery according to the diagram, otherwise the device may be damaged!
140 140  )))
141 141  
142 -=== Connecting thermistors ===
112 +=== 2.4.3 Connecting thermistors ===
143 143  
144 144  Thermistors should be fastened to the cells, excluding short circuits to the cell terminals (for example, isolate thermistors with heat shrink). For reliable operation, it is recommended to use all thermistors (1 temperature sensor for 6 cells).
145 145  
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146 146  [[image:1733148558527-407.png||data-xwiki-image-style-alignment="center" height="356" width="277"]]
147 147  
148 148  
149 -
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