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Last modified by Admin on 2025/03/18 13:04
From version 10.1
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To version 1.2
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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
Content
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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 -== ​​​​​Installation procedure ==
5 -
6 6  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.
7 7  
8 8  The installation site must provide convenient access for subsequent connection to the device’s headers.
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14 14  [[image:1733148558528-694.png||data-xwiki-image-style-alignment="center" height="310" width="504"]]
15 15  
16 16  |**Parameter**|**Value**
17 -|(((
14 +| (((
18 18  Overall dimensions (length × width × height), mm
19 19  )))|125 × 84 × 25
20 20  |Mounting dimensions (length × width), mm|115 × 50
21 21  |Mounting holes|M4
19 +|Headers X1-X3 type|Molex series Mini-Fit
22 22  
23 -== Headers ==
21 +== 2.2 Headers ==
24 24  
25 25  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.
26 26  
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29 29  (% class="box warningmessage" %)
30 30  (((
31 31  **Attention!**
32 -All headers are shown from the device side!
30 +All connectors are shown from the side of connecting to the device!
33 33  )))
34 34  
35 -=== 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"]] ===
36 36  
37 -(% class="wikigeneratedid" %)
38 -Receptacle Housing: Molex 39012160. Terminals: Molex 5556
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46 -
47 -(% class="wikigeneratedid" %)
48 -[[image:1740053130023-265.png||data-xwiki-image-style-alignment="center"]]
49 -
50 50  |**Pin**|**Name**|**Description**
51 51  |**1**|**TEMP2**|Signal from the thermistor #2
52 52  |**2**|**TEMPC**|Ground of the thermistors
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65 65  |**15**|**C4**|Cell #4
66 66  |**16**|**C2**|Cell #2
67 67  
68 -=== X2, X3 – headers for communication with BMS Main ===
53 +=== 2.2.2 X2, X3 – headers for communication with BMS Main ===
69 69  
70 -Receptacle Housing: Molex 39012040. Terminals: Molex 5556
55 +[[image:1733148758240-550.jpeg||data-xwiki-image-style-alignment="center" height="86" width="344"]]
71 71  
72 -[[image:1740053153731-112.png||data-xwiki-image-style-alignment="center"]]
73 -
74 74  |**Pin**|**Name**|**Description**
75 75  |**1**|**RS485_A**|RS-485 line A for communication with the BMS Main
76 76  |**2**|**RS485_B**|RS-485 line B for communication with the BMS Main
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77 77  |**3**|**+5V**|Supply voltage 5V
78 78  |**4**|**GND**|Ground
79 79  
80 -== (% style="color:#333333" %)Switches and indicators(%%) ==
63 +== (% style="color:#333333" %)2.3 Switches and indicators(%%) ==
81 81  
82 -=== SWD1 – address switch ===
65 +=== 2.3.1 SWD1 – address switch ===
83 83  
84 84  |**Switch number**|**Description**
85 85  |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
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89 89  |**5**|The fifth bit of the address. Position ON - bit is 1
90 90  |**6**|The sixth (the highest) bit of the address. Position ON - bit is 1
91 91  
92 -=== DS1 – mode indicator ===
75 +=== 2.3.2 DS1 – mode indicator ===
93 93  
94 94  |**State**|**Description**
95 95  |**Blinking**|Communication between the BMS Main and the device is established
96 96  |**No light**|There is no communication between the BMS Main and the device
97 97  
98 -== Connection procedure ==
81 +== 2.4 Connection procedure ==
99 99  
100 -=== Connection to BMS Main ===
83 +=== 2.4.1 Connection to BMS Main ===
101 101  
102 102  To connect the BMS Main to BMS Logic 2.0 do the following steps:
103 103  
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105 105  1. Connect the BMS Logic 2.0 to each other (X2 -> X3).
106 106  1. Install jumper P1 on the last BMS Logic 2.0 in the chain.
107 107  
108 -(% class="box infomessage" %)
109 -(((
110 -**Recommendations:**
111 -~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.
112 -2. Make all connections with the same cable.
113 -3. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
114 -)))
91 +Recommendations:
115 115  
116 -=== 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.
117 117  
97 +=== 2.4.2 Connecting battery cells ===
98 +
118 118  To connect the battery cells, follow the picture below. Incorrect connection of the cells can damage the BMS Logic 2.0.
119 119  
120 120  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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128 128  Connect the battery according to the diagram, otherwise the device may be damaged!
129 129  )))
130 130  
131 -=== Connecting thermistors ===
112 +=== 2.4.3 Connecting thermistors ===
132 132  
133 133  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).
134 134  
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135 135  [[image:1733148558527-407.png||data-xwiki-image-style-alignment="center" height="356" width="277"]]
136 136  
137 137  
138 -
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