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Last modified by Admin on 2025/07/15 17:33
From version 50.1
edited by Admin
on 2025/02/06 11:27
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To version 19.1
edited by Admin
on 2024/11/13 17:26
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Summary

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Title
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1 -2. Installation and connection
1 +2. Connection
Parent
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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 -|Connectors type|(% style="width:178px" %)Molex MiniFit (P1, P6-P9)
16 -Molex MicroFit (P11-P15)
17 -
18 -== Connection procedure ==
19 -
20 -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.
21 -
22 -1. Connect the charging and discharging contactors to the P6-P9 headers.
23 -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.
24 -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.
25 -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.
26 -
27 -== ​​​​Headers description ==
28 -
29 29  The BMS Main 2.1 headers are shown in figure below.
30 30  
31 -[[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:1731517946345-632.png||height="417" width="451"]]
32 32  
33 -(% class="box warningmessage" %)
34 -(((
35 -**Attention!**
36 -All headers are shown from the device side!
37 -)))
38 -
39 39  === P1 – header for power supply ===
40 40  
41 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
42 42  
43 43  |**Pin**|**Name**|**Description**
44 44  |**1**|**GND**|Ground
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46 46  
47 47  === P15 – header for BMS Logic ===
48 48  
49 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
17 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
50 50  
51 51  |**Pin**|**Name**|**Description**
52 52  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
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56 56  
57 57  === P12 – header for current sensor ===
58 58  
59 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
27 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
60 60  
61 61  |**Pin**|**Name**|**Description**
62 62  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
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66 66  
67 67  === P13 – header for humidity sensor ===
68 68  
69 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
37 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
70 70  
71 71  |**Pin**|**Name**|**Description**
72 72  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
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76 76  
77 77  === P8 – header of relay 1 ===
78 78  
79 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
47 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
80 80  
81 81  By default, relay 1 is used to control the discharging contactor.
82 82  
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86 86  
87 87  === P9 – header of relay 2 ===
88 88  
89 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
57 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
90 90  
91 91  By default, relay 2 is used to output the “Allow charging” signal.
92 92  
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96 96  
97 97  === P6 – header of relay 3 ===
98 98  
99 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
67 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
100 100  
101 101  By default, relay 3 is used to control the charging contactor.
102 102  
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106 106  
107 107  === P7 – header of relay 4 ===
108 108  
109 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
77 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
110 110  
111 111  By default, relay 4 is used to control the heater.
112 112  
113 -|**Pin**|**Name**|**Description**
114 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
115 -|**2**|**NO**|Normally open contact
81 +**Pin**|**Name**|**Description**
82 +**1**|**V+**|Switching voltage (up to 55V, max 8A)
83 +**2**|**NO**|Normally open contact
116 116  
117 117  === P14 – header for CAN and RS-485 interfaces ===
118 118  
119 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
87 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
120 120  
121 -(% style="width:641px" %)
122 122  |**Pin**|**Name**|**Description**
123 123  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
124 124  |**2**|**CAN_H**|CAN H line for communication with external equipment
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129 129  
130 130  === P21 – CAN termination resistor jumper ===
131 131  
132 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
99 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
133 133  
134 134  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
135 135  
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139 139  
140 140  === P22 - RS-485 termination resistor jumper ===
141 141  
142 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
109 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
143 143  
144 144  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
145 145  
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149 149  
150 150  === P11 – header for discrete inputs/outputs ===
151 151  
152 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
119 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
153 153  
154 154  |**Pin**|**Name**|**Description**
155 155  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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169 169  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
170 170  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
171 171  
172 -== Indicators ==
139 += Indicators =
173 173  
174 174  === DS1 – power indicator ===
175 175  
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191 191  
192 192  === DS4 – error indicator ===
193 193  
161 +|**State**|**Description**
162 +|**Blinking red**|Errors in communication with BMS Logic
194 194  
195 -|(**State**|**Description**
196 -|(**Blinking red**|Errors in communication with BMS Logic
197 -
198 198  === DS7 – relay 1 indicator ===
199 199  
200 200  |**State**|**Description**
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203 203  
204 204  === DS8 – relay 2 indicator ===
205 205  
206 -|**State**|**Description**
207 -|**Lights green**|Relay #2 is closed
208 -|**Off**|Relay #2 is opened
209 209  
173 +|**State**|(% style="width:183px" %)**Description**
174 +|**Lights green**|(% style="width:183px" %)Relay #2 is closed
175 +|**Off**|(% style="width:183px" %)Relay #2 is opened
176 +
210 210  === DS5 – relay 3 indicator ===
211 211  
212 212  |**State**|**Description**
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