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Last modified by Admin on 2025/03/18 13:04
From version 13.1
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To version 1.2
edited by Admin
on 2024/12/02 14:20
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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 -Communication cable between BMS Main and BMS Logic devices must be deattached during connection of battery cells to BMS Logic. Connecting the battery cells while BMS Logic attached the the BMS Main may cause device damage!
13 -)))
14 -
15 -(% class="box errormessage" %)
16 -(((
17 -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.
18 -)))
19 -
20 -== Installation procedure ==
21 -
22 22  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.
23 23  
24 24  The installation site must provide convenient access for subsequent connection to the device’s headers.
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30 30  [[image:1733148558528-694.png||data-xwiki-image-style-alignment="center" height="310" width="504"]]
31 31  
32 32  |**Parameter**|**Value**
33 -|(((
14 +| (((
34 34  Overall dimensions (length × width × height), mm
35 35  )))|125 × 84 × 25
36 36  |Mounting dimensions (length × width), mm|115 × 50
37 37  |Mounting holes|M4
19 +|Headers X1-X3 type|Molex series Mini-Fit
38 38  
39 -== Headers ==
21 +== 2.2 Headers ==
40 40  
41 41  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.
42 42  
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45 45  (% class="box warningmessage" %)
46 46  (((
47 47  **Attention!**
48 -All headers are shown from the device side!
30 +All connectors are shown from the side of connecting to the device!
49 49  )))
50 50  
51 -=== 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"]] ===
52 52  
53 -(% class="wikigeneratedid" %)
54 -Receptacle Housing: Molex 39012160. Terminals: Molex 5556
55 -
56 -
57 -
58 -
59 -
60 -
61 -
62 -
63 -(% class="wikigeneratedid" %)
64 -[[image:1740053130023-265.png||data-xwiki-image-style-alignment="center"]]
65 -
66 66  |**Pin**|**Name**|**Description**
67 67  |**1**|**TEMP2**|Signal from the thermistor #2
68 68  |**2**|**TEMPC**|Ground of the thermistors
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81 81  |**15**|**C4**|Cell #4
82 82  |**16**|**C2**|Cell #2
83 83  
84 -=== X2, X3 – headers for communication with BMS Main ===
53 +=== 2.2.2 X2, X3 – headers for communication with BMS Main ===
85 85  
86 -Receptacle Housing: Molex 39012040. Terminals: Molex 5556
55 +[[image:1733148758240-550.jpeg||data-xwiki-image-style-alignment="center" height="86" width="344"]]
87 87  
88 -[[image:1740053153731-112.png||data-xwiki-image-style-alignment="center"]]
89 -
90 90  |**Pin**|**Name**|**Description**
91 91  |**1**|**RS485_A**|RS-485 line A for communication with the BMS Main
92 92  |**2**|**RS485_B**|RS-485 line B for communication with the BMS Main
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93 93  |**3**|**+5V**|Supply voltage 5V
94 94  |**4**|**GND**|Ground
95 95  
96 -== (% style="color:#333333" %)Switches and indicators(%%) ==
63 +== (% style="color:#333333" %)2.3 Switches and indicators(%%) ==
97 97  
98 -=== SWD1 – address switch ===
65 +=== 2.3.1 SWD1 – address switch ===
99 99  
100 100  |**Switch number**|**Description**
101 101  |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
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105 105  |**5**|The fifth bit of the address. Position ON - bit is 1
106 106  |**6**|The sixth (the highest) bit of the address. Position ON - bit is 1
107 107  
108 -=== DS1 – mode indicator ===
75 +=== 2.3.2 DS1 – mode indicator ===
109 109  
110 110  |**State**|**Description**
111 111  |**Blinking**|Communication between the BMS Main and the device is established
112 112  |**No light**|There is no communication between the BMS Main and the device
113 113  
114 -== Connection procedure ==
81 +== 2.4 Connection procedure ==
115 115  
116 -=== Connection to BMS Main ===
83 +=== 2.4.1 Connection to BMS Main ===
117 117  
118 118  To connect the BMS Main to BMS Logic 2.0 do the following steps:
119 119  
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121 121  1. Connect the BMS Logic 2.0 to each other (X2 -> X3).
122 122  1. Install jumper P1 on the last BMS Logic 2.0 in the chain.
123 123  
124 -(% class="box infomessage" %)
125 -(((
126 -**Recommendations:**
127 -~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.
128 -2. Make all connections with the same cable.
129 -3. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
130 -)))
91 +Recommendations:
131 131  
132 -=== 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.
133 133  
97 +=== 2.4.2 Connecting battery cells ===
98 +
134 134  To connect the battery cells, follow the picture below. Incorrect connection of the cells can damage the BMS Logic 2.0.
135 135  
136 136  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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144 144  Connect the battery according to the diagram, otherwise the device may be damaged!
145 145  )))
146 146  
147 -=== Connecting thermistors ===
112 +=== 2.4.3 Connecting thermistors ===
148 148  
149 149  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).
150 150  
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151 151  [[image:1733148558527-407.png||data-xwiki-image-style-alignment="center" height="356" width="277"]]
152 152  
153 153  
154 -
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