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From version 58.3
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on 2025/03/10 15:14
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To version 11.2
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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
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 += ​​​​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
... ... @@ -80,65 +80,50 @@
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 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
52 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor
55 +P9 – header of relay 2
96 96  
97 -=== P9 – header of relay 2 ===
57 +[[image:1731517025702-799.png]]
98 98  
99 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
100 -
101 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
102 -
103 103  By default, relay 2 is used to output the “Allow charging” signal.
104 104  
105 105  |**Pin**|**Name**|**Description**
106 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
62 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
107 107  |**2**|**NO**|Normally open contact
108 108  
109 -=== P6 – header of relay 3 ===
65 +P6 – header of relay 3
110 110  
111 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
67 +[[image:1731517025702-799.png]]
112 112  
113 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
114 -
115 115  By default, relay 3 is used to control the charging contactor.
116 116  
117 117  |**Pin**|**Name**|**Description**
118 -|**1**|**V+**|Switching voltage up to 55V,
119 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
72 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
120 120  |**2**|**NO**|Normally open contact
121 121  
122 -=== P7 – header of relay 4 ===
75 +P7 – header of relay 4
123 123  
124 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
77 +[[image:1731517025702-799.png]]
125 125  
126 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
127 -
128 128  By default, relay 4 is used to control the heater.
129 129  
130 130  |**Pin**|**Name**|**Description**
131 -|**1**|**V+**|Switching voltage up to 55V,
132 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
82 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
133 133  |**2**|**NO**|Normally open contact
134 134  
135 -=== P14 – header for CAN and RS-485 interfaces ===
85 +P14 – header for CAN and RS-485 interfaces
136 136  
137 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
87 +[[image:1731517180930-597.png]]
138 138  
139 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
140 -
141 -(% style="width:641px" %)
142 142  |**Pin**|**Name**|**Description**
143 143  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
144 144  |**2**|**CAN_H**|CAN H line for communication with external equipment
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147 147  |**5**|**CAN_L**|CAN L line for communication with external equipment
148 148  |**6**|**GND_CAN**|Ground
149 149  
150 -=== P21 – CAN termination resistor jumper ===
97 +P21 – CAN termination resistor jumper
151 151  
152 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
99 +[[image:1731517188900-976.png]]
153 153  
154 154  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
155 155  
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157 157  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
158 158  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
159 159  
160 -=== P22 - RS-485 termination resistor jumper ===
107 +P22 - RS-485 termination resistor jumper
161 161  
162 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
109 +[[image:1731517195672-298.png]]
163 163  
164 164  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
165 165  
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167 167  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
168 168  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
169 169  
170 -=== P11 – header for discrete inputs/outputs ===
117 +P11 – header for discrete inputs/outputs
171 171  
172 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
173 173  
174 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
175 -
176 176  |**Pin**|**Name**|**Description**
177 177  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
178 178  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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191 191  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
192 192  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
193 193  
194 -== Indicators ==
138 +1.
139 +11.
140 +111. DS1 – power indicator
195 195  
196 -=== DS1 – power indicator ===
197 -
198 198  |**State**|**Description**
199 199  |**Lights red**|The device is powered
200 200  |**Off**|The device is not powered
201 201  
202 -=== DS2 – operation indicator ===
146 +1.
147 +11.
148 +111. DS2 – operation indicator
203 203  
204 204  |**State**|**Description**
205 205  |**Blinking green**|The BMS firmware is running
206 206  |**Off**|The BMS firmware is not running
207 207  
208 -=== DS3 – communication indicator ===
154 +1.
155 +11.
156 +111. DS3 – communication indicator
209 209  
210 210  |**State**|**Description**
211 211  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
212 212  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
213 213  
214 -=== DS4 – error indicator ===
162 +1.
163 +11.
164 +111. DS4 – error indicator
215 215  
166 +|**State**|**Description**
167 +|**Blinking red**|Errors in communication with BMS Logic
216 216  
217 -|(**State**|**Description**
218 -|(**Blinking red**|Errors in communication with BMS Logic
169 +1.
170 +11.
171 +111. DS7 – relay 1 indicator
219 219  
220 -=== DS7 – relay 1 indicator ===
221 -
222 -|**State**|**Description**
173 +|S**tate**|**Description**
223 223  |**Lights green**|Relay #1 is closed
224 224  |**Off**|Relay #1 is opened
225 225  
226 -=== DS8 – relay 2 indicator ===
177 +1.
178 +11.
179 +111. DS8 – relay 2 indicator
227 227  
228 228  |**State**|**Description**
229 229  |**Lights green**|Relay #2 is closed
230 230  |**Off**|Relay #2 is opened
231 231  
232 -=== DS5 – relay 3 indicator ===
185 +1.
186 +11.
187 +111. DS5 – relay 3 indicator
233 233  
234 234  |**State**|**Description**
235 235  |**Lights green**|Relay #3 is closed
236 236  |**Off**|Relay #3 is opened
237 237  
238 -=== DS6 – relay 4 indicator ===
193 +1.
194 +11.
195 +111. DS6 – relay 4 indicator
239 239  
240 240  |**State**|**Description**
241 241  |**Lights green**|Relay #4 is closed
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