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Title
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1 -2. Installation and connection
1 +2. Connection
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1 -drafts.BMS Main 2\.1.WebHome
1 +Controllers.BMS Main 2\.1.WebHome
Content
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1 -== 2.1 Installation procedure ==
1 += ​​​​Headers =
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 -
23 23  The BMS Main 2.1 headers are shown in figure below.
24 24  
25 -[[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"]]
26 26  
27 -(% class="box warningmessage" %)
28 -(((
29 -**Attention!**
30 -All headers are shown from the device side!
31 -)))
7 +=== P1 – header for power supply ===
32 32  
33 -=== 2.3.1 P1 – header for power supply ===
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
34 34  
35 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
36 -
37 37  |**Pin**|**Name**|**Description**
38 38  |**1**|**GND**|Ground
39 39  |**2**|**V+**|Supply voltage 9-30V
40 40  
41 -=== 2.3.2 P15 – header for BMS Logic ===
15 +=== P15 – header for BMS Logic ===
42 42  
43 -[[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"]]
44 44  
45 45  |**Pin**|**Name**|**Description**
46 46  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
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48 48  |**3**|**+5V**|Supply voltage for BMS Logic
49 49  |**4**|**GND**|Ground
50 50  
51 -=== 2.3.3 P12 – header for current sensor ===
25 +=== P12 – header for current sensor ===
52 52  
53 -[[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"]]
54 54  
55 55  |**Pin**|**Name**|**Description**
56 56  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
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58 58  |**3**|**Vcs**|ADC input (current sensor output)
59 59  |**4**|**Vref**|ADC input (current sensor reference signal)
60 60  
61 -=== 2.3.4 P13 – header for humidity sensor ===
35 +=== P13 – header for humidity sensor ===
62 62  
63 -[[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"]]
64 64  
65 65  |**Pin**|**Name**|**Description**
66 66  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
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68 68  |**3**|**Vhs**|ADC input (humidity sensor output)
69 69  |**4**|**Vts**|ADC input (temperature sensor output)
70 70  
71 -=== 2.3.5 P8 – header of relay 1 ===
45 +=== P8 – header of relay 1 ===
72 72  
73 -[[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"]]
74 74  
75 75  By default, relay 1 is used to control the discharging contactor.
76 76  
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78 78  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
79 79  |**2**|**NO**|Normally open contact
80 80  
81 -=== 2.3.6 P9 – header of relay 2 ===
55 +=== P9 – header of relay 2 ===
82 82  
83 -[[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"]]
84 84  
85 85  By default, relay 2 is used to output the “Allow charging” signal.
86 86  
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88 88  |**1**|**V+**|Switching voltage (up to 55V, max 2A)
89 89  |**2**|**NO**|Normally open contact
90 90  
91 -=== 2.3.7 P6 – header of relay 3 ===
65 +=== P6 – header of relay 3 ===
92 92  
93 -[[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"]]
94 94  
95 95  By default, relay 3 is used to control the charging contactor.
96 96  
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98 98  |**1**|**V+**|Switching voltage (up to 55V, max 8A)
99 99  |**2**|**NO**|Normally open contact
100 100  
101 -=== 2.3.8 P7 – header of relay 4 ===
75 +=== P7 – header of relay 4 ===
102 102  
103 -[[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"]]
104 104  
105 105  By default, relay 4 is used to control the heater.
106 106  
107 -|**Pin**|**Name**|**Description**
108 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
109 -|**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
110 110  
111 -=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
85 +=== P14 – header for CAN and RS-485 interfaces ===
112 112  
113 -[[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"]]
114 114  
115 -(% style="width:641px" %)
116 116  |**Pin**|**Name**|**Description**
117 117  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
118 118  |**2**|**CAN_H**|CAN H line for communication with external equipment
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121 121  |**5**|**CAN_L**|CAN L line for communication with external equipment
122 122  |**6**|**GND_CAN**|Ground
123 123  
124 -=== 2.3.10 P21 – CAN termination resistor jumper ===
97 +=== P21 – CAN termination resistor jumper ===
125 125  
126 -[[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"]]
127 127  
128 128  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
129 129  
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131 131  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
132 132  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
133 133  
134 -=== 2.3.11 P22 - RS-485 termination resistor jumper ===
107 +=== P22 - RS-485 termination resistor jumper ===
135 135  
136 -[[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"]]
137 137  
138 138  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
139 139  
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141 141  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
142 142  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
143 143  
144 -=== 2.3.12 P11 – header for discrete inputs/outputs ===
117 +=== P11 – header for discrete inputs/outputs ===
145 145  
146 -[[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"]]
147 147  
148 148  |**Pin**|**Name**|**Description**
149 149  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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163 163  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
164 164  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
165 165  
166 -= 2.4 Indicators =
139 += Indicators =
167 167  
168 -=== 2.4.1 DS1 – power indicator ===
141 +=== DS1 – power indicator ===
169 169  
170 170  |**State**|**Description**
171 171  |**Lights red**|The device is powered
172 172  |**Off**|The device is not powered
173 173  
174 -=== 2.4.2 DS2 – operation indicator ===
147 +=== DS2 – operation indicator ===
175 175  
176 176  |**State**|**Description**
177 177  |**Blinking green**|The BMS firmware is running
178 178  |**Off**|The BMS firmware is not running
179 179  
180 -=== 2.4.3 DS3 – communication indicator ===
153 +=== DS3 – communication indicator ===
181 181  
182 182  |**State**|**Description**
183 183  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
184 184  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
185 185  
186 -=== 2.4.4 DS4 – error indicator ===
159 +=== DS4 – error indicator ===
187 187  
161 +|**State**|**Description**
162 +|**Blinking red**|Errors in communication with BMS Logic
188 188  
189 -|(**State**|**Description**
190 -|(**Blinking red**|Errors in communication with BMS Logic
164 +=== DS7 – relay 1 indicator ===
191 191  
192 -=== 2.4.5 DS7 – relay 1 indicator ===
193 -
194 194  |**State**|**Description**
195 195  |**Lights green**|Relay #1 is closed
196 196  |**Off**|Relay #1 is opened
197 197  
198 -=== 2.4.6 DS8 – relay 2 indicator ===
170 +=== DS8 – relay 2 indicator ===
199 199  
172 +
200 200  |**State**|**Description**
201 201  |**Lights green**|Relay #2 is closed
202 202  |**Off**|Relay #2 is opened
203 203  
204 -=== 2.4.7 DS5 – relay 3 indicator ===
177 +=== DS5 – relay 3 indicator ===
205 205  
206 206  |**State**|**Description**
207 207  |**Lights green**|Relay #3 is closed
208 208  |**Off**|Relay #3 is opened
209 209  
210 -=== 2.4.8 DS6 – relay 4 indicator ===
183 +=== DS6 – relay 4 indicator ===
211 211  
212 212  |**State**|**Description**
213 213  |**Lights green**|Relay #4 is closed
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