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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +drafts.BMS Main 2\.1.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  Overall and mounting dimensions of the BMS Main 2.1 are shown below.
7 7  
8 8  [[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
9 9  
10 -(% style="width:494px" %)
11 -|**Parameter**|(% style="width:178px" %)**Value**
12 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
13 -|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
14 -|Mounting holes|(% style="width:178px" %)M3
7 +|**Parameter**|**Value**
8 +|Overall dimensions (length × width × height), mm|120 × 120 × 32
9 +|Mounting dimensions (length × width), mm|114 × 114
10 +|Mounting holes|M3
15 15  
16 -== Connection procedure ==
12 +== 2.2 Connection procedure ==
17 17  
18 18  The mounting area of the BMS Main 2.1 must be protected from mechanical particles (dust, dirt, large objects) and water. The installation site must provide convenient access for subsequent connection to the device’s headers.
19 19  
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22 22  1. Connect the BMS Main 2.1 to the on-board CAN network. Observe the rules for connecting CAN devices. If the BMS Main 2.1 is the last device on a bus, close pins 1-2 on the P21 jumper, otherwise leave the jumper on pins 2-3.
23 23  1. Connect a power supply to the P1 header. It is not recommended to power the BMS Main 2.1 from the battery only, since at a critical discharge of the battery, it is not possible to turn on the BMS and close the charging contactor.
24 24  
25 -== ​​​​Headers description ==
21 +== 2.3 ​​​​Headers description ==
26 26  
27 27  The BMS Main 2.1 headers are shown in figure below.
28 28  
29 29  [[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
30 30  
31 -(% class="box warningmessage" %)
32 -(((
33 -**Attention!**
34 -All headers are shown from the device side!
35 -)))
27 +(% class="wikigeneratedid" %)
28 +Following chapters describes the BMS Main 2.1 headers pinout.
36 36  
37 -=== P1 – header for power supply ===
30 +=== 2.3.1 P1 – header for power supply ===
38 38  
39 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
32 +[[image:1732198827034-560.png||height="78" width="41"]]
40 40  
41 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
42 -
43 43  |**Pin**|**Name**|**Description**
44 44  |**1**|**GND**|Ground
45 45  |**2**|**V+**|Supply voltage 9-30V
46 46  
47 -=== P15 – header for BMS Logic ===
38 +=== 2.3.2 P15 – header for BMS Logic ===
48 48  
49 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
40 +[[image:1732198890482-787.png||height="77" width="71"]]
50 50  
51 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
52 -
53 53  |**Pin**|**Name**|**Description**
54 54  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
55 55  |**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
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56 56  |**3**|**+5V**|Supply voltage for BMS Logic
57 57  |**4**|**GND**|Ground
58 58  
59 -=== P12 – header for current sensor ===
48 +=== 2.3.3 P12 – header for current sensor ===
60 60  
61 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
50 +[[image:1732198890482-787.png||height="77" width="71"]]
62 62  
63 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
64 -
65 65  |**Pin**|**Name**|**Description**
66 66  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
67 67  |**2**|**GND**|Ground
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68 68  |**3**|**Vcs**|ADC input (current sensor output)
69 69  |**4**|**Vref**|ADC input (current sensor reference signal)
70 70  
71 -=== P13 – header for humidity sensor ===
58 +=== 2.3.4 P13 – header for humidity sensor ===
72 72  
73 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
60 +[[image:1732198896526-660.png||height="70" width="64"]]
74 74  
75 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
76 -
77 77  |**Pin**|**Name**|**Description**
78 78  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
79 79  |**2**|**GND**|Ground
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80 80  |**3**|**Vhs**|ADC input (humidity sensor output)
81 81  |**4**|**Vts**|ADC input (temperature sensor output)
82 82  
83 -=== P8 – header of relay 1 ===
68 +=== 2.3.5 P8 – header of relay 1 ===
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
70 +[[image:1732198827034-560.png||height="78" width="41"]]
86 86  
87 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
88 -
89 89  By default, relay 1 is used to control the discharging contactor.
90 90  
91 91  |**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
75 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor connection example:
78 +=== 2.3.6 P9 – header of relay 2 ===
96 96  
97 -[[image:1741619700532-367.png||height="184" width="246"]]
80 +[[image:1732198827034-560.png||height="78" width="41"]]
98 98  
99 -=== P9 – header of relay 2 ===
100 -
101 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
102 -
103 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 -
105 105  By default, relay 2 is used to output the “Allow charging” signal.
106 106  
107 107  |**Pin**|**Name**|**Description**
108 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
85 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
109 109  |**2**|**NO**|Normally open contact
110 110  
111 -=== P6 – header of relay 3 ===
88 +=== 2.3.7 P6 – header of relay 3 ===
112 112  
113 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
90 +[[image:1732198827034-560.png||height="78" width="41"]]
114 114  
115 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
116 -
117 117  By default, relay 3 is used to control the charging contactor.
118 118  
119 119  |**Pin**|**Name**|**Description**
120 -|**1**|**V+**|Switching voltage up to 55V,
121 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
122 122  |**2**|**NO**|Normally open contact
123 123  
124 -=== P7 – header of relay 4 ===
98 +=== 2.3.8 P7 – header of relay 4 ===
125 125  
126 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
100 +[[image:1732198827034-560.png||height="78" width="41"]]
127 127  
128 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
129 -
130 130  By default, relay 4 is used to control the heater.
131 131  
132 132  |**Pin**|**Name**|**Description**
133 -|**1**|**V+**|Switching voltage up to 55V,
134 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
105 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
135 135  |**2**|**NO**|Normally open contact
136 136  
137 -=== P14 – header for CAN and RS-485 interfaces ===
108 +=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
138 138  
139 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
110 +[[image:1731517180930-597.png||height="81" width="113"]]
140 140  
141 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
142 -
143 143  (% style="width:641px" %)
144 144  |**Pin**|**Name**|**Description**
145 145  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
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149 149  |**5**|**CAN_L**|CAN L line for communication with external equipment
150 150  |**6**|**GND_CAN**|Ground
151 151  
152 -=== P21 – CAN termination resistor jumper ===
121 +=== 2.3.10 P21 – CAN termination resistor jumper ===
153 153  
154 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
123 +[[image:1731517188900-976.png||height="78" width="149"]]
155 155  
156 156  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
157 157  
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159 159  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
160 160  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
161 161  
162 -=== P22 - RS-485 termination resistor jumper ===
131 +=== 2.3.11 P22 - RS-485 termination resistor jumper ===
163 163  
164 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
133 +[[image:1731517195672-298.png||height="81" width="155"]]
165 165  
166 166  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
167 167  
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169 169  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
170 170  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
171 171  
172 -=== P11 – header for discrete inputs/outputs ===
141 +=== 2.3.12 P11 – header for discrete inputs/outputs ===
173 173  
174 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
143 +[[image:1732198937514-731.png||height="85" width="272"]]
175 175  
176 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
177 -
178 178  |**Pin**|**Name**|**Description**
179 179  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
180 180  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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193 193  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
194 194  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
195 195  
196 -== Indicators ==
163 += 2.4 Indicators =
197 197  
198 -=== DS1 – power indicator ===
165 +=== 2.4.1 DS1 – power indicator ===
199 199  
200 200  |**State**|**Description**
201 201  |**Lights red**|The device is powered
202 202  |**Off**|The device is not powered
203 203  
204 -=== DS2 – operation indicator ===
171 +=== 2.4.2 DS2 – operation indicator ===
205 205  
206 206  |**State**|**Description**
207 207  |**Blinking green**|The BMS firmware is running
208 208  |**Off**|The BMS firmware is not running
209 209  
210 -=== DS3 – communication indicator ===
177 +=== 2.4.3 DS3 – communication indicator ===
211 211  
212 212  |**State**|**Description**
213 213  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
214 214  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
215 215  
216 -=== DS4 – error indicator ===
183 +=== 2.4.4 DS4 – error indicator ===
217 217  
218 218  
219 219  |(**State**|**Description**
220 220  |(**Blinking red**|Errors in communication with BMS Logic
221 221  
222 -=== DS7 – relay 1 indicator ===
189 +=== 2.4.5 DS7 – relay 1 indicator ===
223 223  
224 224  |**State**|**Description**
225 225  |**Lights green**|Relay #1 is closed
226 226  |**Off**|Relay #1 is opened
227 227  
228 -=== DS8 – relay 2 indicator ===
195 +=== 2.4.6 DS8 – relay 2 indicator ===
229 229  
230 230  |**State**|**Description**
231 231  |**Lights green**|Relay #2 is closed
232 232  |**Off**|Relay #2 is opened
233 233  
234 -=== DS5 – relay 3 indicator ===
201 +=== 2.4.7 DS5 – relay 3 indicator ===
235 235  
236 236  |**State**|**Description**
237 237  |**Lights green**|Relay #3 is closed
238 238  |**Off**|Relay #3 is opened
239 239  
240 -=== DS6 – relay 4 indicator ===
207 +=== 2.4.8 DS6 – relay 4 indicator ===
241 241  
242 242  |**State**|**Description**
243 243  |**Lights green**|Relay #4 is closed
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