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Last modified by Admin on 2025/03/18 13:04
From version 2.1
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To version 13.2
edited by Admin
on 2024/12/11 11:19
Change comment: Update document after refactoring.

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1 -drafts.BMS Logic 12.WebHome
1 +Battery management systems.BMS Logic 12.WebHome
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1 -== 2.1 Installation procedure ==
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 =
2 2  
4 +== Installation procedure ==
5 +
3 3  The mounting area of the BMS Logic 12 must be protected from mechanical particles (dust, dirt, large objects) and water. The BMS Logic 12 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.
4 4  
5 5  The installation site must provide convenient access for subsequent connection to the device’s headers.
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19 19  |Mounting holes|(% style="width:160px" %)M4
20 20  |Headers X1-X4 type|(% style="width:160px" %)Molex series Micro-Fit
21 21  
22 -== 2.2 Headers description ==
25 +== Headers ==
23 23  
24 24  The BMS Logic 12 is designed to measure temperature and voltage of 12 battery cells.
25 25  
26 26  [[image:1733143089674-767.png||data-xwiki-image-style-alignment="center" height="356" width="531"]]
27 27  
28 -=== 2.2.1 X1 – header for cells ===
31 +(% class="box warningmessage" %)
32 +(((
33 +**Attention!**
34 +All headers are shown from the device side!
35 +)))
29 29  
30 -[[image:1733143152741-474.jpeg||data-xwiki-image-style-alignment="center" height="93" width="241"]]
37 +=== X1 – header for cells ===
31 31  
39 +[[image:1733143152741-474.jpeg||data-xwiki-image-style-alignment="center" height="81" width="210"]]
40 +
32 32  |**Pin**|**Name**|**Description**
33 33  |**1**|**V-**|Minus of the cell stack
34 34  |**2**|**C2**|Cell #2
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45 45  |**13**|**C9**|Cell #9
46 46  |**14**|**C11**|Cell #11
47 47  
48 -=== 2.2.2 X2 – header for temperature sensors ===
57 +=== X2 – header for temperature sensors ===
49 49  
50 50  [[image:1733143152745-708.jpeg||data-xwiki-image-style-alignment="center" height="92" width="368"]]
51 51  
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75 75  |**23**|**TEMP2**|Signal from the thermistor #2
76 76  |**24**|**TEMP1**|Signal from the thermistor #1
77 77  
78 -=== 2.2.3 X3, X4 – headers for communication with BMS Main ===
87 +=== X3, X4 – headers for communication with BMS Main ===
79 79  
89 +[[image:1733151077073-306.png||data-xwiki-image-style-alignment="center" height="78" width="71"]]
90 +
80 80  |**Pin**|**Name**|**Description**
81 81  |**1**|**RS485_A**|RS-485 line A for communication with the BMS Main
82 82  |**2**|**RS485_B**|RS-485 line B for communication with the BMS Main
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83 83  |**3**|**+5V**|Supply voltage 5V
84 84  |**4**|**GND**|Ground
85 85  
86 -== 2.3 Switches and indicators ==
97 +== (% style="color:inherit; font-family:inherit; font-size:max(20px, min(24px, 12.8889px + 0.925926vw))" %)Switches and indicators(%%) ==
87 87  
88 -=== 2.3.1 SWD1 – address switch ===
99 +=== SWD1 – address switch ===
89 89  
90 90  |**Switch number**|**Description**
91 91  |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
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96 96  
97 97  (% class="box infomessage" %)
98 98  (((
99 -**Note: **There is no SWD1 switch in the recent revisions of the BMS Logic 12. The device address must be configured in the settings (see the section 3.2** **Configuration procedure).
110 +**Note: **There is no SWD1 switch in the recent revisions of the BMS Logic 12. The device address must be configured in the settings (see the section [[Configuration>>doc:drafts.BMS Logic 12.3\. Configuration.WebHome]]).
100 100  )))
101 101  
102 -=== 2.3.2 SWD2 – RS-485 termination resistor switch ===
113 +=== SWD2 – RS-485 termination resistor switch ===
103 103  
104 104  To connect the termination resistor between the **RS485_A** and **RS485_B** lines, switch the SWD2 to the ON position.
105 105  
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108 108  **Note: **There is no SWD2 switch in the recent revisions of the BMS Logic 12. Connect a 120 Ohm termination resistor directly to the X4 connector between the lines RS485_A and RS485_B.
109 109  )))
110 110  
111 -=== 2.3.3 DS1 – mode indicator ===
122 +=== DS1 – mode indicator ===
112 112  
113 -|**State**|**Description**
114 -|Blinking|Connection between the BMS Main and the device is established
115 -|Short flashing (~~50 milliseconds in a second)|The device is measuring voltage and temperature. No communication between the BMS Main and the device
116 -|Long flashing (1 second in a 2 second period)|The device is in the bootloader mode
124 +(% style="width:718px" %)
125 +|**State**|(% style="width:422px" %)**Description**
126 +|Blinking|(% style="width:422px" %)Connection between the BMS Main and the device is established
127 +|Short flashing (~~50 milliseconds in a second)|(% style="width:422px" %)The device is measuring voltage and temperature. No communication between the BMS Main and the device
128 +|Long flashing (1 second in a 2 second period)|(% style="width:422px" %)The device is in the bootloader mode
117 117  
130 +== Connection procedure ==
131 +
132 +=== Connection to BMS Main ===
133 +
134 +To connect the BMS Main to BMS Logic 12 do the following steps:
135 +
136 +1. Connect the BMS Main to the first BMS Logic 12 (P15 -> X3).
137 +1. Connect the BMS Logic 12 to each other (X4 -> X3).
138 +1. Switch SWD2 on the last BMS Logic 12 to the ON position or connect a 120 Ohm termination resistor directly to the X4 connector of the last BMS Logic 12.
139 +
140 +(% class="box infomessage" %)
141 +(((
142 +**Recommendations:**
143 +~1. The total cable length (the sum of the lengths of all cables) between the BMS Main and the last BMS Logic 12 should not exceed 500 meters.
144 +2. Make all connections with the same cable.
145 +3. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
146 +)))
147 +
148 +=== Connecting battery cells ===
149 +
150 +To connect the battery cells, follow Figure 16. Incorrect connection of the cells can damage the BMS Logic 12.
151 +
152 +Begin the connection with the negative of the battery: the "V-" of the first BMS Logic 12 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 12 is connected to the C12 of the previous BMS Logic 12. If not all inputs of the cells are used, then the remaining inputs are connected to the cell with the highest potential.
153 +
154 +[[image:1733145484804-250.jpeg||data-xwiki-image-style-alignment="center" height="507" width="587"]]
155 +
156 +
157 +(% class="box warningmessage" %)
158 +(((
159 +**Attention!**
160 +Connect the battery according to the diagram, otherwise the device may be damaged.
161 +)))
162 +
163 +=== Connecting thermistors ===
164 +
165 +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 (a temperature sensor per cell).
166 +
167 +[[image:1733231119798-210.jpeg||data-xwiki-image-style-alignment="center" height="408" width="539"]]
168 +
118 118  
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