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Last modified by Admin on 2025/07/15 17:33
From version 20.2
edited by Admin
on 2024/11/13 17:33
Change comment: Update document after refactoring.
To version 26.1
edited by Admin
on 2024/11/21 14:13
Change comment: Uploaded new attachment "1732198397369-222.png", version {1}

Summary

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