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Title
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1 -2. Connection procedure
1 +2. Connection
Parent
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1 -Controllers.BMS Main 2\.1.WebHome
1 +Additional modules.BMS Main 2\.1.WebHome
Content
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1 -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.
1 += ​​​​Headers =
2 2  
3 -1. Connect the charging and discharging contactors to the P6-P9 headers.
4 -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.
5 -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.
6 -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.
7 -
8 -= ​​​​Headers description =
9 -
10 10  The BMS Main 2.1 headers are shown in figure below.
11 11  
12 -[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
5 +[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||height="430" width="428"]]
13 13  
14 -(% class="wikigeneratedid" %)
15 -Following chapters describes the BMS Main 2.1 headers pinout.
7 +== P1 – header for power supply ==
16 16  
17 -=== P1 – header for power supply ===
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center" height="93" width="49"]]
18 18  
19 -[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
11 +|**Pin**|**Name**|**Description**
12 +|**1**|**GND**|Ground
13 +|**2**|**V+**|Supply voltage 9-30V
20 20  
21 -(% style="width:339px" %)
22 -|(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
23 -|(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
24 -|(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
15 +== P15 – header for BMS Logic ==
25 25  
26 -=== P15 – header for BMS Logic ===
17 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center" height="90" width="83"]]
27 27  
28 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
19 +|**Pin**|**Name**|**Description**
20 +|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
21 +|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
22 +|**3**|**+5V**|Supply voltage for BMS Logic
23 +|**4**|**GND**|Ground
29 29  
30 -(% style="width:524px" %)
31 -|(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
32 -|(% style="width:69px" %)**1**|(% style="width:97px" %)**RS485_A**|(% style="width:355px" %)RS-485 line A for communication with BMS Logic
33 -|(% style="width:69px" %)**2**|(% style="width:97px" %)**RS485_B**|(% style="width:355px" %)RS-485 line B for communication with BMS Logic
34 -|(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
35 -|(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
25 +== P12 – header for current sensor ==
36 36  
37 -=== P12 – header for current sensor ===
27 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center" height="98" width="90"]]
38 38  
39 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
29 +|**Pin**|**Name**|**Description**
30 +|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
31 +|**2**|**GND**|Ground
32 +|**3**|**Vcs**|ADC input (current sensor output)
33 +|**4**|**Vref**|ADC input (current sensor reference signal)
40 40  
41 -(% style="width:531px" %)
42 -|(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
43 -|(% style="width:75px" %)**1**|(% style="width:93px" %)**+5V**|(% style="width:360px" %)Supply voltage for the current sensor 5V, max 50 mA
44 -|(% style="width:75px" %)**2**|(% style="width:93px" %)**GND**|(% style="width:360px" %)Ground
45 -|(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
46 -|(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
35 +== P13 – header for humidity sensor ==
47 47  
48 -=== P13 – header for humidity sensor ===
49 -
50 50  [[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
51 51  
52 52  |**Pin**|**Name**|**Description**
... ... @@ -55,9 +55,9 @@
55 55  |**3**|**Vhs**|ADC input (humidity sensor output)
56 56  |**4**|**Vts**|ADC input (temperature sensor output)
57 57  
58 -=== P8 – header of relay 1 ===
45 +P8 – header of relay 1
59 59  
60 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
47 +[[image:1731517023208-641.png]]
61 61  
62 62  By default, relay 1 is used to control the discharging contactor.
63 63  
... ... @@ -65,9 +65,9 @@
65 65  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
66 66  |**2**|**NO**|Normally open contact
67 67  
68 -=== P9 – header of relay 2 ===
55 +P9 – header of relay 2
69 69  
70 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
57 +[[image:1731517025702-799.png]]
71 71  
72 72  By default, relay 2 is used to output the “Allow charging” signal.
73 73  
... ... @@ -75,9 +75,9 @@
75 75  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
76 76  |**2**|**NO**|Normally open contact
77 77  
78 -=== P6 – header of relay 3 ===
65 +P6 – header of relay 3
79 79  
80 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
67 +[[image:1731517025702-799.png]]
81 81  
82 82  By default, relay 3 is used to control the charging contactor.
83 83  
... ... @@ -85,9 +85,9 @@
85 85  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
86 86  |**2**|**NO**|Normally open contact
87 87  
88 -=== P7 – header of relay 4 ===
75 +P7 – header of relay 4
89 89  
90 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
77 +[[image:1731517025702-799.png]]
91 91  
92 92  By default, relay 4 is used to control the heater.
93 93  
... ... @@ -95,9 +95,9 @@
95 95  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
96 96  |**2**|**NO**|Normally open contact
97 97  
98 -=== P14 – header for CAN and RS-485 interfaces ===
85 +P14 – header for CAN and RS-485 interfaces
99 99  
100 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
87 +[[image:1731517180930-597.png]]
101 101  
102 102  |**Pin**|**Name**|**Description**
103 103  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
... ... @@ -107,9 +107,9 @@
107 107  |**5**|**CAN_L**|CAN L line for communication with external equipment
108 108  |**6**|**GND_CAN**|Ground
109 109  
110 -=== P21 – CAN termination resistor jumper ===
97 +P21 – CAN termination resistor jumper
111 111  
112 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
99 +[[image:1731517188900-976.png]]
113 113  
114 114  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
115 115  
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117 117  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
118 118  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
119 119  
120 -=== P22 - RS-485 termination resistor jumper ===
107 +P22 - RS-485 termination resistor jumper
121 121  
122 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
109 +[[image:1731517195672-298.png]]
123 123  
124 124  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
125 125  
... ... @@ -127,9 +127,8 @@
127 127  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
128 128  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
129 129  
130 -=== P11 – header for discrete inputs/outputs ===
117 +P11 – header for discrete inputs/outputs
131 131  
132 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
133 133  
134 134  |**Pin**|**Name**|**Description**
135 135  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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149 149  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
150 150  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
151 151  
152 -= Indicators =
138 +1.
139 +11.
140 +111. DS1 – power indicator
153 153  
154 -=== DS1 – power indicator ===
155 -
156 156  |**State**|**Description**
157 157  |**Lights red**|The device is powered
158 158  |**Off**|The device is not powered
159 159  
160 -=== DS2 – operation indicator ===
146 +1.
147 +11.
148 +111. DS2 – operation indicator
161 161  
162 162  |**State**|**Description**
163 163  |**Blinking green**|The BMS firmware is running
164 164  |**Off**|The BMS firmware is not running
165 165  
166 -=== DS3 – communication indicator ===
154 +1.
155 +11.
156 +111. DS3 – communication indicator
167 167  
168 168  |**State**|**Description**
169 169  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
170 170  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
171 171  
172 -=== DS4 – error indicator ===
162 +1.
163 +11.
164 +111. DS4 – error indicator
173 173  
174 174  |**State**|**Description**
175 175  |**Blinking red**|Errors in communication with BMS Logic
176 176  
177 -=== DS7 – relay 1 indicator ===
169 +1.
170 +11.
171 +111. DS7 – relay 1 indicator
178 178  
179 -|**State**|**Description**
173 +|S**tate**|**Description**
180 180  |**Lights green**|Relay #1 is closed
181 181  |**Off**|Relay #1 is opened
182 182  
183 -=== DS8 – relay 2 indicator ===
177 +1.
178 +11.
179 +111. DS8 – relay 2 indicator
184 184  
185 -
186 186  |**State**|**Description**
187 187  |**Lights green**|Relay #2 is closed
188 188  |**Off**|Relay #2 is opened
189 189  
190 -=== DS5 – relay 3 indicator ===
185 +1.
186 +11.
187 +111. DS5 – relay 3 indicator
191 191  
192 192  |**State**|**Description**
193 193  |**Lights green**|Relay #3 is closed
194 194  |**Off**|Relay #3 is opened
195 195  
196 -=== DS6 – relay 4 indicator ===
193 +1.
194 +11.
195 +111. DS6 – relay 4 indicator
197 197  
198 198  |**State**|**Description**
199 199  |**Lights green**|Relay #4 is closed
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