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Title
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1 -2. Connection
1 +2. Installation and connection
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1 -Additional modules.BMS Main 2\.1.WebHome
1 +drafts.BMS Main 2\.1.WebHome
Content
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1 -= ​​​​Headers =
1 +== 2.1 Installation procedure ==
2 2  
3 +Overall and mounting dimensions of the BMS Main 2.1 are shown below.
4 +
5 +[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
6 +
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
11 +
12 +== 2.2 Connection procedure ==
13 +
14 +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.
15 +
16 +1. Connect the charging and discharging contactors to the P6-P9 headers.
17 +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.
18 +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.
19 +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.
20 +
21 +== 2.3 ​​​​Headers description ==
22 +
3 3  The BMS Main 2.1 headers are shown in figure below.
4 4  
5 -[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
25 +[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
6 6  
7 -=== P1 – header for power supply ===
27 +(% class="wikigeneratedid" %)
28 +Following chapters describes the BMS Main 2.1 headers pinout.
8 8  
9 -[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
30 +=== 2.3.1 P1 – header for power supply ===
10 10  
32 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
33 +
11 11  |**Pin**|**Name**|**Description**
12 12  |**1**|**GND**|Ground
13 13  |**2**|**V+**|Supply voltage 9-30V
14 14  
15 -=== P15 – header for BMS Logic ===
38 +=== 2.3.2 P15 – header for BMS Logic ===
16 16  
17 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
40 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
18 18  
19 19  |**Pin**|**Name**|**Description**
20 20  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
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22 22  |**3**|**+5V**|Supply voltage for BMS Logic
23 23  |**4**|**GND**|Ground
24 24  
25 -=== P12 – header for current sensor ===
48 +=== 2.3.3 P12 – header for current sensor ===
26 26  
27 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
50 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
28 28  
29 29  |**Pin**|**Name**|**Description**
30 30  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
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32 32  |**3**|**Vcs**|ADC input (current sensor output)
33 33  |**4**|**Vref**|ADC input (current sensor reference signal)
34 34  
35 -=== P13 – header for humidity sensor ===
58 +=== 2.3.4 P13 – header for humidity sensor ===
36 36  
37 -[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
60 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
38 38  
39 39  |**Pin**|**Name**|**Description**
40 40  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
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42 42  |**3**|**Vhs**|ADC input (humidity sensor output)
43 43  |**4**|**Vts**|ADC input (temperature sensor output)
44 44  
45 -=== P8 – header of relay 1 ===
68 +=== 2.3.5 P8 – header of relay 1 ===
46 46  
47 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
70 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
48 48  
49 49  By default, relay 1 is used to control the discharging contactor.
50 50  
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52 52  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
53 53  |**2**|**NO**|Normally open contact
54 54  
55 -=== P9 – header of relay 2 ===
78 +=== 2.3.6 P9 – header of relay 2 ===
56 56  
57 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
80 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
58 58  
59 59  By default, relay 2 is used to output the “Allow charging” signal.
60 60  
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62 62  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
63 63  |**2**|**NO**|Normally open contact
64 64  
65 -=== P6 – header of relay 3 ===
88 +=== 2.3.7 P6 – header of relay 3 ===
66 66  
67 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
90 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
68 68  
69 69  By default, relay 3 is used to control the charging contactor.
70 70  
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72 72  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
73 73  |**2**|**NO**|Normally open contact
74 74  
75 -=== P7 – header of relay 4 ===
98 +=== 2.3.8 P7 – header of relay 4 ===
76 76  
77 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
100 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
78 78  
79 79  By default, relay 4 is used to control the heater.
80 80  
81 -**Pin**|**Name**|**Description**
82 -**1**|**V+**|Switching voltage (up to 55V, max 8A)
83 -**2**|**NO**|Normally open contact
104 +|**Pin**|**Name**|**Description**
105 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
106 +|**2**|**NO**|Normally open contact
84 84  
85 -=== P14 – header for CAN and RS-485 interfaces ===
108 +=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
86 86  
87 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
110 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
88 88  
112 +(% style="width:641px" %)
89 89  |**Pin**|**Name**|**Description**
90 90  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
91 91  |**2**|**CAN_H**|CAN H line for communication with external equipment
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94 94  |**5**|**CAN_L**|CAN L line for communication with external equipment
95 95  |**6**|**GND_CAN**|Ground
96 96  
97 -=== P21 – CAN termination resistor jumper ===
121 +=== 2.3.10 P21 – CAN termination resistor jumper ===
98 98  
99 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
123 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
100 100  
101 101  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
102 102  
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104 104  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
105 105  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
106 106  
107 -=== P22 - RS-485 termination resistor jumper ===
131 +=== 2.3.11 P22 - RS-485 termination resistor jumper ===
108 108  
109 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
133 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
110 110  
111 111  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
112 112  
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114 114  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
115 115  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
116 116  
117 -=== P11 – header for discrete inputs/outputs ===
141 +=== 2.3.12 P11 – header for discrete inputs/outputs ===
118 118  
119 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
143 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
120 120  
121 121  |**Pin**|**Name**|**Description**
122 122  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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136 136  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
137 137  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
138 138  
139 -= Indicators =
163 += 2.4 Indicators =
140 140  
141 -=== DS1 – power indicator ===
165 +=== 2.4.1 DS1 – power indicator ===
142 142  
143 143  |**State**|**Description**
144 144  |**Lights red**|The device is powered
145 145  |**Off**|The device is not powered
146 146  
147 -=== DS2 – operation indicator ===
171 +=== 2.4.2 DS2 – operation indicator ===
148 148  
149 149  |**State**|**Description**
150 150  |**Blinking green**|The BMS firmware is running
151 151  |**Off**|The BMS firmware is not running
152 152  
153 -=== DS3 – communication indicator ===
177 +=== 2.4.3 DS3 – communication indicator ===
154 154  
155 155  |**State**|**Description**
156 156  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
157 157  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
158 158  
159 -=== DS4 – error indicator ===
183 +=== 2.4.4 DS4 – error indicator ===
160 160  
161 -|**State**|**Description**
162 -|**Blinking red**|Errors in communication with BMS Logic
163 163  
164 -=== DS7 – relay 1 indicator ===
186 +|(**State**|**Description**
187 +|(**Blinking red**|Errors in communication with BMS Logic
165 165  
189 +=== 2.4.5 DS7 – relay 1 indicator ===
190 +
166 166  |**State**|**Description**
167 167  |**Lights green**|Relay #1 is closed
168 168  |**Off**|Relay #1 is opened
169 169  
170 -=== DS8 – relay 2 indicator ===
195 +=== 2.4.6 DS8 – relay 2 indicator ===
171 171  
172 -
173 173  |**State**|**Description**
174 174  |**Lights green**|Relay #2 is closed
175 175  |**Off**|Relay #2 is opened
176 176  
177 -=== DS5 – relay 3 indicator ===
201 +=== 2.4.7 DS5 – relay 3 indicator ===
178 178  
179 179  |**State**|**Description**
180 180  |**Lights green**|Relay #3 is closed
181 181  |**Off**|Relay #3 is opened
182 182  
183 -=== DS6 – relay 4 indicator ===
207 +=== 2.4.8 DS6 – relay 4 indicator ===
184 184  
185 185  |**State**|**Description**
186 186  |**Lights green**|Relay #4 is closed
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