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Last modified by Admin on 2025/03/18 13:04
From version 2.1
edited by Admin
on 2024/12/02 14:50
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To version 19.1
edited by Admin
on 2025/03/18 12:27
Change comment: There is no comment for this version

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1 -drafts.BMS Logic 18.WebHome
1 +Battery management systems.BMS Logic 18.WebHome
Content
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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 +== ​​​​​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 +
3 3  The mounting area of the BMS Logic 18 must be protected from mechanical particles (dust, dirt, large objects) and water. The BMS Logic 18 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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8 8  
9 9  Overall and mounting dimensions of the BMS Logic 18 are shown below.
10 10  
11 -[[image:1733150108388-179.png||data-xwiki-image-style-alignment="center" height="384" width="555"]]
25 +[[image:1736771889450-259.png||data-xwiki-image-style-alignment="center" height="405" width="600"]]
12 12  
13 13  |**Parameter**|**Value**
14 14  |(((
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16 16  )))|214 × 140 × 16
17 17  |Mounting dimensions (length × width), mm|198 × 132
18 18  |Mounting holes|M4
19 -|Headers X1-X5 type|Molex series Micro-Fit
20 20  
21 -== (% style="color:#333333" %)2.2 (%%)Headers ==
34 +== Headers ==
22 22  
23 23  The BMS Logic 18 is designed to measure temperature and voltage of 18 battery cells.
24 24  
25 -[[image:1733150257403-684.png||data-xwiki-image-style-alignment="center" height="376" width="640"]]
38 +[[image:1736770801015-488.png||data-xwiki-image-style-alignment="center" height="350" width="600"]]
26 26  
27 -=== 2.2.1 X1 – header for cells ===
40 +(% class="box warningmessage" %)
41 +(((
42 +**Attention!**
43 +All headers are shown from the device side!
44 +)))
28 28  
46 +=== X1 – header for cells ===
47 +
48 +Receptacle Housing: Molex 430252000. Terminals: Molex 43030
49 +
29 29  [[image:1733150257406-647.jpeg||data-xwiki-image-style-alignment="center" height="73" width="256"]]
30 30  
31 31  |**Pin**|**Name**|**Description**
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50 50  |**19**|**C15**|Cell #15
51 51  |**20**|**C17**|Cell #17
52 52  
53 -=== 2.2.2 X2 – header 1 for temperature sensors ===
74 +=== X2 – header 1 for temperature sensors ===
54 54  
76 +Receptacle Housing: Molex 430251800. Terminals: Molex 43030
77 +
55 55  [[image:1733150257408-172.jpeg||data-xwiki-image-style-alignment="center" height="81" width="267"]]
56 56  
57 57  |**Pin**|**Name**|**Description**
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74 74  |**17**|**TEMP2**|Signal from the thermistor #2
75 75  |**18**|**TEMP1**|Signal from the thermistor #1
76 76  
77 -== 2.2.3 X3 – header 2 for temperature sensors ==
100 +=== X3 – header 2 for temperature sensors ===
78 78  
102 +Receptacle Housing: Molex 430251800. Terminals: Molex 43030
103 +
79 79  [[image:1733150257410-796.jpeg||data-xwiki-image-style-alignment="center" height="81" width="268"]]
80 80  
81 81  |**Pin**|**Name**|**Description**
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98 98  |**17**|**TEMP11**|Signal from the thermistor #11
99 99  |**18**|**TEMP10**|Signal from the thermistor #10
100 100  
101 -=== 2.3.4 X4, X5 – headers for communication with BMS Main ===
126 +=== X4, X5 – headers for communication with BMS Main ===
102 102  
128 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
129 +
103 103  [[image:1733150513230-598.png||data-xwiki-image-style-alignment="center" height="89" width="81"]]
104 104  
105 105  |**Pin**|**Name**|**Description**
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108 108  |**3**|**+5V**|Supply voltage 5V
109 109  |**4**|**GND**|Ground
110 110  
111 -== 2.4 Switches and Indicators ==
138 +== Switches and Indicators ==
112 112  
113 -=== 2.4.1 SWD1 – address switch ===
140 +=== SWD1 – address switch ===
114 114  
115 115  |**Switch number**|**Description**
116 116  |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
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121 121  
122 122  (% class="box infomessage" %)
123 123  (((
124 -**Note: **There is no SWD1 switch in the recent revisions of the BMS Logic 18. The device address must be configured in the settings (see the section 4.2 Configuration procedure).
151 +**Note: **There is no SWD1 switch in the recent revisions of the BMS Logic 18. The device address must be configured in the settings (see the section [[3. Configuration>>doc:Battery management systems.BMS Logic 18.3\. Configuration.WebHome]]).
125 125  )))
126 126  
127 -=== 2.4.2 SWD2 – RS-485 termination resistor switch ===
154 +=== SWD2 – RS-485 termination resistor switch ===
128 128  
129 129  To connect the termination resistor between the **RS485_A** and **RS485_B** lines, switch SWD2 to the ON position.
130 130  
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133 133  **Note: **There is no SWD2 switch in the recent revisions of the BMS Logic 18. Connect a 120 Ohm termination resistor directly to the X5 connector between the lines RS485_A and RS485_B.
134 134  )))
135 135  
136 -=== 2.4.3 DS1 – mode indicator ===
163 +=== DS1 – mode indicator ===
137 137  
138 -|**State**|**Description**
139 -|**Blinking**|Connection between the BMS Main and the device is established
140 -|**Short flashing (~~50 milliseconds in a second)**|The device is measuring voltage and temperature. No communication between the BMS Main and the device
141 -|**Long flashing (1 second in a 2 second period)**|The device is in the bootloader mode
165 +(% style="width:551px" %)
166 +|(% style="width:188px" %)**State**|(% style="width:362px" %)**Description**
167 +|(% style="width:188px" %)**Blinking**|(% style="width:362px" %)Connection between the BMS Main and the device is established
168 +|(% style="width:188px" %)**Short flashing (~~50 milliseconds in a second)**|(% style="width:362px" %)The device is measuring voltage and temperature. No communication between the BMS Main and the device
169 +|(% style="width:188px" %)**Long flashing (1 second in a 2 second period)**|(% style="width:362px" %)The device is in the bootloader mode
170 +
171 +== Connection procedure ==
172 +
173 +=== Connection to BMS Main ===
174 +
175 +To connect the BMS Main to BMS Logic 18 do the following steps:
176 +
177 +1. Connect the BMS Main to the first BMS Logic 18 (P15 -> X4);
178 +1. Connect the BMS Logic 18 to each other (X5 -> X4);
179 +1. Switch SWD2 on the last BMS Logic 18 to the ON position or connect a 120 Ohm termination resistor directly to the X5 connector of the last BMS Logic 18.
180 +
181 +(% class="box infomessage" %)
182 +(((
183 +**Recommendations:**
184 +~1. The total cable length (the sum of the lengths of all cables) between the BMS Main and the last BMS Logic 18 should not exceed 500 meters.
185 +2. Make all connections with the same cable.
186 +3. For a total cable length of more than 10 meters use twisted pair with the 120 Ohm wave impedance.
187 +)))
188 +
189 +=== Connecting battery cells ===
190 +
191 +To connect the battery cells, follow figure below. Incorrect connection of the cells can damage the BMS Logic 18.
192 +
193 +Begin the connection with the negative of the battery: the "V-" of the first BMS Logic 18 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 18 is connected to the C18 of the previous BMS Logic 18. If not all inputs of the cells are used, then the remaining inputs are connected to the cell with the most potential.
194 +
195 +
196 +[[image:1733151263524-832.jpeg||data-xwiki-image-style-alignment="center" height="492" width="612"]]
197 +
198 +(% class="box warningmessage" %)
199 +(((
200 +**Attention!**
201 +Connect the battery according to the diagram, otherwise the device may be damaged!
202 +)))
203 +
204 +=== Connecting thermistors ===
205 +
206 +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).
207 +
208 +[[image:1733231170607-745.png||data-xwiki-image-style-alignment="center" height="324" width="806"]]
209 +
210 +
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