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From version 56.1
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on 2025/02/20 12:59
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To version 12.1
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on 2024/11/13 17:00
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Title
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1 -2. Installation and connection
1 +2. Connection
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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +Additional modules.BMS Main 2\.1.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 += ​​​​Headers =
3 3  
4 -== Installation procedure ==
5 -
6 -Overall and mounting dimensions of the BMS Main 2.1 are shown below.
7 -
8 -[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
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
15 -
16 -== Connection procedure ==
17 -
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 -
20 -1. Connect the charging and discharging contactors to the P6-P9 headers.
21 -1. Connect a current sensor to the P12 header according to its documentation. The positive current direction (indicated by an arrow on the sensor) corresponds to the battery charging. It is recommended to use a shielded cable to connect the current sensor, the shield should be grounded on the side of the current sensor. The cable should be positioned as far as possible from the high current circuits. If the current sensor has a reference voltage line, connect it to pin 4 of the P12 header.
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 -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 -
25 -== ​​​​Headers description ==
26 -
27 27  The BMS Main 2.1 headers are shown in figure below.
28 28  
29 -[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
5 +[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||height="430" width="428"]]
30 30  
31 -(% class="box warningmessage" %)
32 -(((
33 -**Attention!**
34 -All headers are shown from the device side!
35 -)))
7 +== P1 – header for power supply ==
36 36  
37 -=== P1 – header for power supply ===
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center" height="93" width="49"]]
38 38  
39 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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 ===
15 +== P15 – header for BMS Logic ==
48 48  
49 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
17 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center" height="90" width="83"]]
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
... ... @@ -56,12 +56,10 @@
56 56  |**3**|**+5V**|Supply voltage for BMS Logic
57 57  |**4**|**GND**|Ground
58 58  
59 -=== P12 – header for current sensor ===
25 +== P12 – header for current sensor ==
60 60  
61 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
27 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center" height="98" width="90"]]
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
... ... @@ -68,12 +68,10 @@
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 ===
35 +== P13 – header for humidity sensor ==
72 72  
73 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
37 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
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
... ... @@ -80,12 +80,10 @@
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 ===
45 +P8 – header of relay 1
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
47 +[[image:1731517023208-641.png]]
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**
... ... @@ -92,12 +92,10 @@
92 92  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -=== P9 – header of relay 2 ===
55 +P9 – header of relay 2
96 96  
97 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
57 +[[image:1731517025702-799.png]]
98 98  
99 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
100 -
101 101  By default, relay 2 is used to output the “Allow charging” signal.
102 102  
103 103  |**Pin**|**Name**|**Description**
... ... @@ -104,12 +104,10 @@
104 104  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
105 105  |**2**|**NO**|Normally open contact
106 106  
107 -=== P6 – header of relay 3 ===
65 +P6 – header of relay 3
108 108  
109 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
67 +[[image:1731517025702-799.png]]
110 110  
111 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
112 -
113 113  By default, relay 3 is used to control the charging contactor.
114 114  
115 115  |**Pin**|**Name**|**Description**
... ... @@ -116,12 +116,10 @@
116 116  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
117 117  |**2**|**NO**|Normally open contact
118 118  
119 -=== P7 – header of relay 4 ===
75 +P7 – header of relay 4
120 120  
121 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
77 +[[image:1731517025702-799.png]]
122 122  
123 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
124 -
125 125  By default, relay 4 is used to control the heater.
126 126  
127 127  |**Pin**|**Name**|**Description**
... ... @@ -128,13 +128,10 @@
128 128  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
129 129  |**2**|**NO**|Normally open contact
130 130  
131 -=== P14 – header for CAN and RS-485 interfaces ===
85 +P14 – header for CAN and RS-485 interfaces
132 132  
133 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
87 +[[image:1731517180930-597.png]]
134 134  
135 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
136 -
137 -(% style="width:641px" %)
138 138  |**Pin**|**Name**|**Description**
139 139  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
140 140  |**2**|**CAN_H**|CAN H line for communication with external equipment
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143 143  |**5**|**CAN_L**|CAN L line for communication with external equipment
144 144  |**6**|**GND_CAN**|Ground
145 145  
146 -=== P21 – CAN termination resistor jumper ===
97 +P21 – CAN termination resistor jumper
147 147  
148 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
99 +[[image:1731517188900-976.png]]
149 149  
150 150  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
151 151  
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153 153  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
154 154  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
155 155  
156 -=== P22 - RS-485 termination resistor jumper ===
107 +P22 - RS-485 termination resistor jumper
157 157  
158 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
109 +[[image:1731517195672-298.png]]
159 159  
160 160  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
161 161  
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163 163  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
164 164  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
165 165  
166 -=== P11 – header for discrete inputs/outputs ===
117 +P11 – header for discrete inputs/outputs
167 167  
168 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
169 169  
170 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
171 -
172 172  |**Pin**|**Name**|**Description**
173 173  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
174 174  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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187 187  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
188 188  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
189 189  
190 -== Indicators ==
138 +1.
139 +11.
140 +111. DS1 – power indicator
191 191  
192 -=== DS1 – power indicator ===
193 -
194 194  |**State**|**Description**
195 195  |**Lights red**|The device is powered
196 196  |**Off**|The device is not powered
197 197  
198 -=== DS2 – operation indicator ===
146 +1.
147 +11.
148 +111. DS2 – operation indicator
199 199  
200 200  |**State**|**Description**
201 201  |**Blinking green**|The BMS firmware is running
202 202  |**Off**|The BMS firmware is not running
203 203  
204 -=== DS3 – communication indicator ===
154 +1.
155 +11.
156 +111. DS3 – communication indicator
205 205  
206 206  |**State**|**Description**
207 207  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
208 208  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
209 209  
210 -=== DS4 – error indicator ===
162 +1.
163 +11.
164 +111. DS4 – error indicator
211 211  
166 +|**State**|**Description**
167 +|**Blinking red**|Errors in communication with BMS Logic
212 212  
213 -|(**State**|**Description**
214 -|(**Blinking red**|Errors in communication with BMS Logic
169 +1.
170 +11.
171 +111. DS7 – relay 1 indicator
215 215  
216 -=== DS7 – relay 1 indicator ===
217 -
218 -|**State**|**Description**
173 +|S**tate**|**Description**
219 219  |**Lights green**|Relay #1 is closed
220 220  |**Off**|Relay #1 is opened
221 221  
222 -=== DS8 – relay 2 indicator ===
177 +1.
178 +11.
179 +111. DS8 – relay 2 indicator
223 223  
224 224  |**State**|**Description**
225 225  |**Lights green**|Relay #2 is closed
226 226  |**Off**|Relay #2 is opened
227 227  
228 -=== DS5 – relay 3 indicator ===
185 +1.
186 +11.
187 +111. DS5 – relay 3 indicator
229 229  
230 230  |**State**|**Description**
231 231  |**Lights green**|Relay #3 is closed
232 232  |**Off**|Relay #3 is opened
233 233  
234 -=== DS6 – relay 4 indicator ===
193 +1.
194 +11.
195 +111. DS6 – relay 4 indicator
235 235  
236 236  |**State**|**Description**
237 237  |**Lights green**|Relay #4 is closed
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