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Wiki source code of 2. Installation and connection

Version 26.2 by Admin on 2024/11/21 14:13
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Admin 26.2 1 == 2.1 Installation procedure ==
Admin 25.4 2
Admin 26.2 3 Overall and mounting dimensions of the BMS Main 2.1 are shown in Figure 29.
4
5 [[Dimensions of the BMS Main 2.1>>image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
6
7 == ==
8
9 == 2.2 Connection procedure ==
10
Admin 20.3 11 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.
Admin 1.2 12
Admin 20.3 13 1. Connect the charging and discharging contactors to the P6-P9 headers.
14 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.
15 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.
16 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.
17
Admin 25.4 18 == 2.2 ​​​​Headers description ==
Admin 20.3 19
Admin 1.2 20 The BMS Main 2.1 headers are shown in figure below.
21
Admin 17.2 22 [[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
Admin 1.2 23
Admin 20.3 24 (% class="wikigeneratedid" %)
Admin 21.1 25 Following chapters describes the BMS Main 2.1 headers pinout.
Admin 20.3 26
Admin 25.4 27 === 2.2.1 P1 – header for power supply ===
Admin 2.2 28
Admin 24.1 29 [[image:1731516593096-166.png||height="80" width="42"]]
Admin 2.2 30
Admin 21.2 31 (% style="width:339px" %)
32 |(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
33 |(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
34 |(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
Admin 4.2 35
Admin 25.4 36 === 2.2.2 P15 – header for BMS Logic ===
Admin 4.2 37
Admin 23.1 38 [[image:1731516577472-301.png||height="77" width="71"]]
Admin 4.2 39
Admin 21.2 40 (% style="width:524px" %)
41 |(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
42 |(% style="width:69px" %)**1**|(% style="width:97px" %)**RS485_A**|(% style="width:355px" %)RS-485 line A for communication with BMS Logic
43 |(% style="width:69px" %)**2**|(% style="width:97px" %)**RS485_B**|(% style="width:355px" %)RS-485 line B for communication with BMS Logic
44 |(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
45 |(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
Admin 5.2 46
Admin 25.4 47 === 2.2.3 P12 – header for current sensor ===
Admin 5.2 48
Admin 23.1 49 [[image:1731516685999-633.png||height="74" width="68"]]
Admin 5.3 50
Admin 21.2 51 (% style="width:531px" %)
52 |(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
53 |(% style="width:75px" %)**1**|(% style="width:93px" %)**+5V**|(% style="width:360px" %)Supply voltage for the current sensor 5V, max 50 mA
54 |(% style="width:75px" %)**2**|(% style="width:93px" %)**GND**|(% style="width:360px" %)Ground
55 |(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
56 |(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
Admin 5.3 57
Admin 25.4 58 === 2.2.4 P13 – header for humidity sensor ===
Admin 5.3 59
Admin 23.1 60 [[image:1731516942455-641.png||height="70" width="64"]]
Admin 6.2 61
Admin 21.3 62 (% style="width:531px" %)
63 |(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
64 |(% style="width:77px" %)**1**|(% style="width:92px" %)**+5V**|(% style="width:359px" %)Supply voltage 5 V, max 50 mA
65 |(% style="width:77px" %)**2**|(% style="width:92px" %)**GND**|(% style="width:359px" %)Ground
66 |(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
67 |(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
Admin 6.2 68
Admin 25.4 69 === 2.2.5 P8 – header of relay 1 ===
Admin 6.2 70
Admin 23.1 71 [[image:1731517023208-641.png||height="80" width="42"]]
Admin 6.2 72
73 By default, relay 1 is used to control the discharging contactor.
74
Admin 21.3 75 (% style="width:527px" %)
76 |(% style="width:82px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:351px" %)**Description**
77 |(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
78 |(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
Admin 6.2 79
Admin 25.4 80 === 2.2.6 P9 – header of relay 2 ===
Admin 11.2 81
Admin 23.1 82 [[image:1731517025702-799.png||height="71" width="37"]]
Admin 11.2 83
84 By default, relay 2 is used to output the “Allow charging” signal.
85
Admin 21.3 86 (% style="width:524px" %)
87 |(% style="width:89px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:341px" %)**Description**
88 |(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
89 |(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
Admin 6.2 90
Admin 25.4 91 === 2.2.7 P6 – header of relay 3 ===
Admin 6.2 92
Admin 23.1 93 [[image:1731517025702-799.png||height="67" width="35"]]
Admin 6.2 94
Admin 11.2 95 By default, relay 3 is used to control the charging contactor.
Admin 6.2 96
Admin 21.3 97 (% style="width:524px" %)
98 |(% style="width:101px" %)**Pin**|(% style="width:88px" %)**Name**|(% style="width:332px" %)**Description**
99 |(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
100 |(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
Admin 6.2 101
Admin 25.4 102 === 2.2.8 P7 – header of relay 4 ===
Admin 6.2 103
Admin 24.1 104 [[image:1731517025702-799.png||height="65" width="34"]]
Admin 11.2 105
106 By default, relay 4 is used to control the heater.
107
Admin 21.3 108 (% style="width:530px" %)
109 |(% style="width:102px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:332px" %)**Description**
110 |(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
111 |(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)Normally open contact
Admin 6.2 112
Admin 25.4 113 === 2.2.9 P14 – header for CAN and RS-485 interfaces ===
Admin 6.2 114
Admin 23.1 115 [[image:1731517180930-597.png||height="81" width="113"]]
Admin 6.2 116
Admin 21.3 117 (% style="width:641px" %)
118 |(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
119 |(% style="width:107px" %)**1**|(% style="width:127px" %)**EXT_RS485_A**|(% style="width:404px" %)RS-485 line A for communication with external equipment
120 |(% style="width:107px" %)**2**|(% style="width:127px" %)**CAN_H**|(% style="width:404px" %)CAN H line for communication with external equipment
121 |(% style="width:107px" %)**3**|(% style="width:127px" %)**+5V_CAN**|(% style="width:404px" %)Supply voltage 5V for external devices, max 200 mA
122 |(% style="width:107px" %)**4**|(% style="width:127px" %)**EXT_RS485_B**|(% style="width:404px" %)RS-485 line B for communication with external equipment
123 |(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
124 |(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
Admin 11.2 125
Admin 25.4 126 === 2.2.10 P21 – CAN termination resistor jumper ===
Admin 11.2 127
Admin 23.1 128 [[image:1731517188900-976.png||height="78" width="149"]]
Admin 11.2 129
130 To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
131
Admin 21.4 132 (% style="width:643px" %)
133 |**Pin**|(% style="width:122px" %)**Name**|(% style="width:400px" %)**Description**
134 |**1-2**|(% style="width:122px" %)**120 Ohm**|(% style="width:400px" %)Termination resistor 120 Ohm is connected
135 |**2-3**|(% style="width:122px" %)**-**|(% style="width:400px" %)Termination resistor 120 Ohm is not connected
Admin 11.2 136
Admin 25.4 137 === 2.2.11 P22 - RS-485 termination resistor jumper ===
Admin 11.2 138
Admin 22.2 139 [[image:1731517195672-298.png||height="81" width="155"]]
Admin 11.2 140
141 To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
142
Admin 21.4 143 (% style="width:644px" %)
144 |**Pin**|(% style="width:121px" %)**Name**|(% style="width:402px" %)**Description**
145 |**1-2**|(% style="width:121px" %)**120 Ohm**|(% style="width:402px" %)Terminating resistor 120 Ohm is connected
146 |**2-3**|(% style="width:121px" %)**-**|(% style="width:402px" %)Terminating resistor 120 Ohm is not connected
Admin 11.2 147
Admin 25.5 148 === 2.2.12 P11 – header for discrete inputs/outputs ===
Admin 11.2 149
Admin 23.1 150 [[image:1731517206246-979.png||height="81" width="258"]]
Admin 11.2 151
Admin 21.4 152 (% style="width:584px" %)
153 |(% style="width:98px" %)**Pin**|(% style="width:157px" %)**Name**|(% style="width:326px" %)**Description**
154 |(% style="width:98px" %)**16**|(% style="width:157px" %)**IN_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (+5V)
155 |(% style="width:98px" %)**8**|(% style="width:157px" %)**GND_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (ground)
156 |(% style="width:98px" %)**15**|(% style="width:157px" %)**IN_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (+5V)
157 |(% style="width:98px" %)**7**|(% style="width:157px" %)**GND_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (ground)
158 |(% style="width:98px" %)**14**|(% style="width:157px" %)**IN_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (+5V)
159 |(% style="width:98px" %)**6**|(% style="width:157px" %)**GND_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (ground)
160 |(% style="width:98px" %)**13**|(% style="width:157px" %)**IN_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (+5V)
161 |(% style="width:98px" %)**5**|(% style="width:157px" %)**GND_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (ground)
162 |(% style="width:98px" %)**12**|(% style="width:157px" %)**OUT_4**|(% style="width:326px" %)Discrete output #4 (+5V, 20mA)
163 |(% style="width:98px" %)**4**|(% style="width:157px" %)**GND_OUT_4**|(% style="width:326px" %)Discrete output #4 (ground)
164 |(% style="width:98px" %)**11**|(% style="width:157px" %)**OUT_3**|(% style="width:326px" %)Discrete output #3 (+5V, 20mA)
165 |(% style="width:98px" %)**3**|(% style="width:157px" %)**GND_OUT_3**|(% style="width:326px" %)Discrete output #3 (ground)
166 |(% style="width:98px" %)**10**|(% style="width:157px" %)**OUT_2**|(% style="width:326px" %)Discrete output #2 (+5V, 20mA)
167 |(% style="width:98px" %)**2**|(% style="width:157px" %)**GND_OUT_2**|(% style="width:326px" %)Discrete output #2 (ground)
168 |(% style="width:98px" %)**9**|(% style="width:157px" %)**OUT_1**|(% style="width:326px" %)Discrete output #1 (+5V, 20mA)
169 |(% style="width:98px" %)**1**|(% style="width:157px" %)**GND_OUT_1**|(% style="width:326px" %)Discrete output #1 (ground)
Admin 11.2 170
Admin 25.5 171 = 2.3 Indicators =
Admin 11.2 172
Admin 25.5 173 === 2.3.1 DS1 – power indicator ===
Admin 13.1 174
Admin 21.4 175 (% style="width:442px" %)
176 |(% style="width:138px" %)**State**|(% style="width:301px" %)**Description**
177 |(% style="width:138px" %)**Lights red**|(% style="width:301px" %)The device is powered
178 |(% style="width:138px" %)**Off**|(% style="width:301px" %)The device is not powered
Admin 11.2 179
Admin 25.5 180 === 2.3.2 DS2 – operation indicator ===
Admin 11.2 181
Admin 21.4 182 (% style="width:442px" %)
183 |(% style="width:137px" %)**State**|(% style="width:302px" %)**Description**
184 |(% style="width:137px" %)**Blinking green**|(% style="width:302px" %)The BMS firmware is running
185 |(% style="width:137px" %)**Off**|(% style="width:302px" %)The BMS firmware is not running
Admin 11.2 186
Admin 25.5 187 === 2.3.3 DS3 – communication indicator ===
Admin 11.2 188
Admin 21.4 189 (% style="width:539px" %)
190 |(% style="width:175px" %)**State**|(% style="width:361px" %)**Description**
191 |(% style="width:175px" %)**Blinking yellow (2Hz)**|(% style="width:361px" %)Initializing communication with BMS Logic boards
192 |(% style="width:175px" %)**Blinking yellow (25Hz)**|(% style="width:361px" %)Communication with BMS Logic is established
Admin 11.2 193
Admin 25.5 194 === 2.3.4 DS4 – error indicator ===
Admin 11.2 195
Admin 21.4 196 (% style="width:539px" %)
197 |(% style="width:176px" %)**State**|(% style="width:360px" %)**Description**
198 |(% style="width:176px" %)**Blinking red**|(% style="width:360px" %)Errors in communication with BMS Logic
Admin 11.2 199
Admin 25.5 200 === 2.3.5 DS7 – relay 1 indicator ===
Admin 11.2 201
Admin 21.4 202 (% style="width:541px" %)
203 |(% style="width:179px" %)**State**|(% style="width:359px" %)**Description**
204 |(% style="width:179px" %)**Lights green**|(% style="width:359px" %)Relay #1 is closed
205 |(% style="width:179px" %)**Off**|(% style="width:359px" %)Relay #1 is opened
Admin 11.2 206
Admin 25.5 207 === 2.3.6 DS8 – relay 2 indicator ===
Admin 11.2 208
Admin 22.1 209 (% style="width:542px" %)
210 |(% style="width:180px" %)**State**|(% style="width:359px" %)**Description**
211 |(% style="width:180px" %)**Lights green**|(% style="width:359px" %)Relay #2 is closed
212 |(% style="width:180px" %)**Off**|(% style="width:359px" %)Relay #2 is opened
Admin 19.1 213
Admin 25.5 214 === 2.3.7 DS5 – relay 3 indicator ===
Admin 11.2 215
Admin 22.1 216 (% style="width:542px" %)
217 |(% style="width:183px" %)**State**|(% style="width:356px" %)**Description**
218 |(% style="width:183px" %)**Lights green**|(% style="width:356px" %)Relay #3 is closed
219 |(% style="width:183px" %)**Off**|(% style="width:356px" %)Relay #3 is opened
Admin 11.2 220
Admin 25.5 221 === 2.3.8 DS6 – relay 4 indicator ===
Admin 11.2 222
Admin 22.1 223 (% style="width:542px" %)
224 |(% style="width:187px" %)**State**|(% style="width:352px" %)**Description**
225 |(% style="width:187px" %)**Lights green**|(% style="width:352px" %)Relay #4 is closed
226 |(% style="width:187px" %)**Off**|(% style="width:352px" %)Relay #4 is opened
Admin 11.2 227
Admin 5.3 228