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Last modified by Admin on 2025/07/15 17:33
From version 49.3
edited by Admin
on 2025/02/06 11:26
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To version 19.1
edited by Admin
on 2024/11/13 17:26
Change comment: There is no comment for this version

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)
16 -
17 -== Connection procedure ==
18 -
19 -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.
20 -
21 -1. Connect the charging and discharging contactors to the P6-P9 headers.
22 -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.
23 -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.
24 -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.
25 -
26 -== ​​​​Headers description ==
27 -
28 28  The BMS Main 2.1 headers are shown in figure below.
29 29  
30 -[[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"]]
31 31  
32 -(% class="box warningmessage" %)
33 -(((
34 -**Attention!**
35 -All headers are shown from the device side!
36 -)))
37 -
38 38  === P1 – header for power supply ===
39 39  
40 -[[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"]]
41 41  
42 42  |**Pin**|**Name**|**Description**
43 43  |**1**|**GND**|Ground
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45 45  
46 46  === P15 – header for BMS Logic ===
47 47  
48 -[[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"]]
49 49  
50 50  |**Pin**|**Name**|**Description**
51 51  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
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55 55  
56 56  === P12 – header for current sensor ===
57 57  
58 -[[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"]]
59 59  
60 60  |**Pin**|**Name**|**Description**
61 61  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
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65 65  
66 66  === P13 – header for humidity sensor ===
67 67  
68 -[[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"]]
69 69  
70 70  |**Pin**|**Name**|**Description**
71 71  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
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75 75  
76 76  === P8 – header of relay 1 ===
77 77  
78 -[[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"]]
79 79  
80 80  By default, relay 1 is used to control the discharging contactor.
81 81  
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85 85  
86 86  === P9 – header of relay 2 ===
87 87  
88 -[[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"]]
89 89  
90 90  By default, relay 2 is used to output the “Allow charging” signal.
91 91  
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95 95  
96 96  === P6 – header of relay 3 ===
97 97  
98 -[[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"]]
99 99  
100 100  By default, relay 3 is used to control the charging contactor.
101 101  
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105 105  
106 106  === P7 – header of relay 4 ===
107 107  
108 -[[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"]]
109 109  
110 110  By default, relay 4 is used to control the heater.
111 111  
112 -|**Pin**|**Name**|**Description**
113 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
114 -|**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
115 115  
116 116  === P14 – header for CAN and RS-485 interfaces ===
117 117  
118 -[[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"]]
119 119  
120 -(% style="width:641px" %)
121 121  |**Pin**|**Name**|**Description**
122 122  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
123 123  |**2**|**CAN_H**|CAN H line for communication with external equipment
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128 128  
129 129  === P21 – CAN termination resistor jumper ===
130 130  
131 -[[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"]]
132 132  
133 133  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
134 134  
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138 138  
139 139  === P22 - RS-485 termination resistor jumper ===
140 140  
141 -[[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"]]
142 142  
143 143  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
144 144  
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148 148  
149 149  === P11 – header for discrete inputs/outputs ===
150 150  
151 -[[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"]]
152 152  
153 153  |**Pin**|**Name**|**Description**
154 154  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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168 168  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
169 169  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
170 170  
171 -== Indicators ==
139 += Indicators =
172 172  
173 173  === DS1 – power indicator ===
174 174  
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190 190  
191 191  === DS4 – error indicator ===
192 192  
161 +|**State**|**Description**
162 +|**Blinking red**|Errors in communication with BMS Logic
193 193  
194 -|(**State**|**Description**
195 -|(**Blinking red**|Errors in communication with BMS Logic
196 -
197 197  === DS7 – relay 1 indicator ===
198 198  
199 199  |**State**|**Description**
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202 202  
203 203  === DS8 – relay 2 indicator ===
204 204  
205 -|**State**|**Description**
206 -|**Lights green**|Relay #2 is closed
207 -|**Off**|Relay #2 is opened
208 208  
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 +
209 209  === DS5 – relay 3 indicator ===
210 210  
211 211  |**State**|**Description**
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