Skip to Content

Wiki source code of 2. Installation and connection

Version 42.1 by Admin on 2024/11/21 14:25
Hide last authors
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
Admin 26.3 7 |**Parameter**|**Value**
8 |(((
9 Overall dimensions (length × width × height), mm
10 )))|120 × 120 × 32
11 |Mounting dimensions (length × width), mm|114 × 114
12 |Mounting holes|M3
Admin 26.2 13
14 == 2.2 Connection procedure ==
15
Admin 20.3 16 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 17
Admin 20.3 18 1. Connect the charging and discharging contactors to the P6-P9 headers.
19 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.
20 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.
21 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.
22
Admin 26.3 23 == 2.3 ​​​​Headers description ==
Admin 20.3 24
Admin 1.2 25 The BMS Main 2.1 headers are shown in figure below.
26
Admin 17.2 27 [[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
Admin 1.2 28
Admin 20.3 29 (% class="wikigeneratedid" %)
Admin 21.1 30 Following chapters describes the BMS Main 2.1 headers pinout.
Admin 20.3 31
Admin 26.3 32 === 2.3.1 P1 – header for power supply ===
Admin 2.2 33
Admin 29.2 34 [[image:1732198827034-560.png||height="78" width="41"]]
Admin 2.2 35
Admin 21.2 36 (% style="width:339px" %)
37 |(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
38 |(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
39 |(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
Admin 4.2 40
Admin 26.3 41 === 2.3.2 P15 – header for BMS Logic ===
Admin 4.2 42
Admin 29.2 43 [[image:1732198849079-697.png||height="77" width="71"]]
Admin 4.2 44
Admin 21.2 45 (% style="width:524px" %)
46 |(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
47 |(% style="width:69px" %)**1**|(% style="width:97px" %)**RS485_A**|(% style="width:355px" %)RS-485 line A for communication with BMS Logic
48 |(% style="width:69px" %)**2**|(% style="width:97px" %)**RS485_B**|(% style="width:355px" %)RS-485 line B for communication with BMS Logic
49 |(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
50 |(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
Admin 5.2 51
Admin 26.3 52 === 2.3.3 P12 – header for current sensor ===
Admin 5.2 53
Admin 31.2 54 [[image:1732198890482-787.png||height="77" width="71"]]
Admin 5.3 55
Admin 21.2 56 (% style="width:531px" %)
57 |(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
58 |(% style="width:75px" %)**1**|(% style="width:93px" %)**+5V**|(% style="width:360px" %)Supply voltage for the current sensor 5V, max 50 mA
59 |(% style="width:75px" %)**2**|(% style="width:93px" %)**GND**|(% style="width:360px" %)Ground
60 |(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
61 |(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
Admin 5.3 62
Admin 26.3 63 === 2.3.4 P13 – header for humidity sensor ===
Admin 5.3 64
Admin 31.2 65 [[image:1732198896526-660.png||height="70" width="64"]]
Admin 6.2 66
Admin 21.3 67 (% style="width:531px" %)
68 |(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
69 |(% style="width:77px" %)**1**|(% style="width:92px" %)**+5V**|(% style="width:359px" %)Supply voltage 5 V, max 50 mA
70 |(% style="width:77px" %)**2**|(% style="width:92px" %)**GND**|(% style="width:359px" %)Ground
71 |(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
72 |(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
Admin 6.2 73
Admin 26.3 74 === 2.3.5 P8 – header of relay 1 ===
Admin 6.2 75
Admin 31.2 76 [[image:1732198827034-560.png||height="78" width="41"]]
Admin 6.2 77
78 By default, relay 1 is used to control the discharging contactor.
79
Admin 21.3 80 (% style="width:527px" %)
81 |(% style="width:82px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:351px" %)**Description**
82 |(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
83 |(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
Admin 6.2 84
Admin 26.3 85 === 2.3.6 P9 – header of relay 2 ===
Admin 11.2 86
Admin 31.2 87 [[image:1732198827034-560.png||height="78" width="41"]]
Admin 11.2 88
89 By default, relay 2 is used to output the “Allow charging” signal.
90
Admin 21.3 91 (% style="width:524px" %)
92 |(% style="width:89px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:341px" %)**Description**
93 |(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
94 |(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
Admin 6.2 95
Admin 26.3 96 === 2.3.7 P6 – header of relay 3 ===
Admin 6.2 97
Admin 31.2 98 [[image:1732198827034-560.png||height="78" width="41"]]
Admin 6.2 99
Admin 11.2 100 By default, relay 3 is used to control the charging contactor.
Admin 6.2 101
Admin 21.3 102 (% style="width:524px" %)
103 |(% style="width:101px" %)**Pin**|(% style="width:88px" %)**Name**|(% style="width:332px" %)**Description**
104 |(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
105 |(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
Admin 6.2 106
Admin 26.3 107 === 2.3.8 P7 – header of relay 4 ===
Admin 6.2 108
Admin 31.2 109 [[image:1732198827034-560.png||height="78" width="41"]]
Admin 11.2 110
111 By default, relay 4 is used to control the heater.
112
Admin 21.3 113 (% style="width:530px" %)
114 |(% style="width:102px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:332px" %)**Description**
115 |(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
116 |(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)Normally open contact
Admin 6.2 117
Admin 26.3 118 === 2.3.9 P14 – header for CAN and RS-485 interfaces ===
Admin 6.2 119
Admin 23.1 120 [[image:1731517180930-597.png||height="81" width="113"]]
Admin 6.2 121
Admin 21.3 122 (% style="width:641px" %)
123 |(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
124 |(% style="width:107px" %)**1**|(% style="width:127px" %)**EXT_RS485_A**|(% style="width:404px" %)RS-485 line A for communication with external equipment
125 |(% style="width:107px" %)**2**|(% style="width:127px" %)**CAN_H**|(% style="width:404px" %)CAN H line for communication with external equipment
126 |(% style="width:107px" %)**3**|(% style="width:127px" %)**+5V_CAN**|(% style="width:404px" %)Supply voltage 5V for external devices, max 200 mA
127 |(% style="width:107px" %)**4**|(% style="width:127px" %)**EXT_RS485_B**|(% style="width:404px" %)RS-485 line B for communication with external equipment
128 |(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
129 |(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
Admin 11.2 130
Admin 26.3 131 === 2.3.10 P21 – CAN termination resistor jumper ===
Admin 11.2 132
Admin 23.1 133 [[image:1731517188900-976.png||height="78" width="149"]]
Admin 11.2 134
135 To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
136
Admin 21.4 137 (% style="width:643px" %)
138 |**Pin**|(% style="width:122px" %)**Name**|(% style="width:400px" %)**Description**
139 |**1-2**|(% style="width:122px" %)**120 Ohm**|(% style="width:400px" %)Termination resistor 120 Ohm is connected
140 |**2-3**|(% style="width:122px" %)**-**|(% style="width:400px" %)Termination resistor 120 Ohm is not connected
Admin 11.2 141
Admin 26.3 142 === 2.3.11 P22 - RS-485 termination resistor jumper ===
Admin 11.2 143
Admin 22.2 144 [[image:1731517195672-298.png||height="81" width="155"]]
Admin 11.2 145
146 To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
147
Admin 21.4 148 (% style="width:644px" %)
149 |**Pin**|(% style="width:121px" %)**Name**|(% style="width:402px" %)**Description**
150 |**1-2**|(% style="width:121px" %)**120 Ohm**|(% style="width:402px" %)Terminating resistor 120 Ohm is connected
151 |**2-3**|(% style="width:121px" %)**-**|(% style="width:402px" %)Terminating resistor 120 Ohm is not connected
Admin 11.2 152
Admin 26.3 153 === 2.3.12 P11 – header for discrete inputs/outputs ===
Admin 11.2 154
Admin 31.2 155 [[image:1732198937514-731.png||height="85" width="272"]]
Admin 11.2 156
Admin 21.4 157 (% style="width:584px" %)
158 |(% style="width:98px" %)**Pin**|(% style="width:157px" %)**Name**|(% style="width:326px" %)**Description**
159 |(% style="width:98px" %)**16**|(% style="width:157px" %)**IN_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (+5V)
160 |(% style="width:98px" %)**8**|(% style="width:157px" %)**GND_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (ground)
161 |(% style="width:98px" %)**15**|(% style="width:157px" %)**IN_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (+5V)
162 |(% style="width:98px" %)**7**|(% style="width:157px" %)**GND_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (ground)
163 |(% style="width:98px" %)**14**|(% style="width:157px" %)**IN_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (+5V)
164 |(% style="width:98px" %)**6**|(% style="width:157px" %)**GND_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (ground)
165 |(% style="width:98px" %)**13**|(% style="width:157px" %)**IN_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (+5V)
166 |(% style="width:98px" %)**5**|(% style="width:157px" %)**GND_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (ground)
167 |(% style="width:98px" %)**12**|(% style="width:157px" %)**OUT_4**|(% style="width:326px" %)Discrete output #4 (+5V, 20mA)
168 |(% style="width:98px" %)**4**|(% style="width:157px" %)**GND_OUT_4**|(% style="width:326px" %)Discrete output #4 (ground)
169 |(% style="width:98px" %)**11**|(% style="width:157px" %)**OUT_3**|(% style="width:326px" %)Discrete output #3 (+5V, 20mA)
170 |(% style="width:98px" %)**3**|(% style="width:157px" %)**GND_OUT_3**|(% style="width:326px" %)Discrete output #3 (ground)
171 |(% style="width:98px" %)**10**|(% style="width:157px" %)**OUT_2**|(% style="width:326px" %)Discrete output #2 (+5V, 20mA)
172 |(% style="width:98px" %)**2**|(% style="width:157px" %)**GND_OUT_2**|(% style="width:326px" %)Discrete output #2 (ground)
173 |(% style="width:98px" %)**9**|(% style="width:157px" %)**OUT_1**|(% style="width:326px" %)Discrete output #1 (+5V, 20mA)
174 |(% style="width:98px" %)**1**|(% style="width:157px" %)**GND_OUT_1**|(% style="width:326px" %)Discrete output #1 (ground)
Admin 11.2 175
Admin 26.3 176 = 2.4 Indicators =
Admin 11.2 177
Admin 26.3 178 === 2.4.1 DS1 – power indicator ===
Admin 13.1 179
Admin 21.4 180 (% style="width:442px" %)
181 |(% style="width:138px" %)**State**|(% style="width:301px" %)**Description**
182 |(% style="width:138px" %)**Lights red**|(% style="width:301px" %)The device is powered
183 |(% style="width:138px" %)**Off**|(% style="width:301px" %)The device is not powered
Admin 11.2 184
Admin 26.3 185 === 2.4.2 DS2 – operation indicator ===
Admin 11.2 186
Admin 21.4 187 (% style="width:442px" %)
188 |(% style="width:137px" %)**State**|(% style="width:302px" %)**Description**
189 |(% style="width:137px" %)**Blinking green**|(% style="width:302px" %)The BMS firmware is running
190 |(% style="width:137px" %)**Off**|(% style="width:302px" %)The BMS firmware is not running
Admin 11.2 191
Admin 26.3 192 === 2.4.3 DS3 – communication indicator ===
Admin 11.2 193
Admin 21.4 194 (% style="width:539px" %)
195 |(% style="width:175px" %)**State**|(% style="width:361px" %)**Description**
196 |(% style="width:175px" %)**Blinking yellow (2Hz)**|(% style="width:361px" %)Initializing communication with BMS Logic boards
197 |(% style="width:175px" %)**Blinking yellow (25Hz)**|(% style="width:361px" %)Communication with BMS Logic is established
Admin 11.2 198
Admin 26.3 199 === 2.4.4 DS4 – error indicator ===
Admin 11.2 200
Admin 21.4 201 (% style="width:539px" %)
202 |(% style="width:176px" %)**State**|(% style="width:360px" %)**Description**
203 |(% style="width:176px" %)**Blinking red**|(% style="width:360px" %)Errors in communication with BMS Logic
Admin 11.2 204
Admin 26.3 205 === 2.4.5 DS7 – relay 1 indicator ===
Admin 11.2 206
Admin 21.4 207 (% style="width:541px" %)
208 |(% style="width:179px" %)**State**|(% style="width:359px" %)**Description**
209 |(% style="width:179px" %)**Lights green**|(% style="width:359px" %)Relay #1 is closed
210 |(% style="width:179px" %)**Off**|(% style="width:359px" %)Relay #1 is opened
Admin 11.2 211
Admin 26.3 212 === 2.4.6 DS8 – relay 2 indicator ===
Admin 11.2 213
Admin 22.1 214 (% style="width:542px" %)
215 |(% style="width:180px" %)**State**|(% style="width:359px" %)**Description**
216 |(% style="width:180px" %)**Lights green**|(% style="width:359px" %)Relay #2 is closed
217 |(% style="width:180px" %)**Off**|(% style="width:359px" %)Relay #2 is opened
Admin 19.1 218
Admin 26.3 219 === 2.4.7 DS5 – relay 3 indicator ===
Admin 11.2 220
Admin 22.1 221 (% style="width:542px" %)
222 |(% style="width:183px" %)**State**|(% style="width:356px" %)**Description**
223 |(% style="width:183px" %)**Lights green**|(% style="width:356px" %)Relay #3 is closed
224 |(% style="width:183px" %)**Off**|(% style="width:356px" %)Relay #3 is opened
Admin 11.2 225
Admin 26.3 226 === 2.4.8 DS6 – relay 4 indicator ===
Admin 11.2 227
Admin 22.1 228 (% style="width:542px" %)
229 |(% style="width:187px" %)**State**|(% style="width:352px" %)**Description**
230 |(% style="width:187px" %)**Lights green**|(% style="width:352px" %)Relay #4 is closed
231 |(% style="width:187px" %)**Off**|(% style="width:352px" %)Relay #4 is opened
Admin 11.2 232
Admin 5.3 233