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1 -Additional modules.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 -[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||height="430" width="428"]]
14 +[[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" height="93" width="49"]]
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" height="90" width="83"]]
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" height="98" width="90"]]
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]]
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]]
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]]
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]]
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]]
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]]
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]]
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  
142 +[[image:1731517206246-979.png||height="81" width="258"]]
119 119  
120 -|**Pin**|**Name**|**Description**
121 -|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
122 -|**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
123 -|**15**|**IN_2**|Discrete input #2 “dry contact” (+5V)
124 -|**7**|**GND_2**|Discrete input #2 “dry contact” (ground)
125 -|**14**|**IN_3**|Discrete input #3 “dry contact” (+5V)
126 -|**6**|**GND_3**|Discrete input #3 “dry contact” (ground)
127 -|**13**|**IN_4**|Discrete input #4 “dry contact” (+5V)
128 -|**5**|**GND_4**|Discrete input #4 “dry contact” (ground)
129 -|**12**|**OUT_4**|Discrete output #4 (+5V, 20mA)
130 -|**4**|**GND_OUT_4**|Discrete output #4 (ground)
131 -|**11**|**OUT_3**|Discrete output #3 (+5V, 20mA)
132 -|**3**|**GND_OUT_3**|Discrete output #3 (ground)
133 -|**10**|**OUT_2**|Discrete output #2 (+5V, 20mA)
134 -|**2**|**GND_OUT_2**|Discrete output #2 (ground)
135 -|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
136 -|**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)
137 137  
138 -1.
139 -11.
140 -111. DS1 – power indicator
163 += 2.3 Indicators =
141 141  
142 -|**State**|**Description**
143 -|**Lights red**|The device is powered
144 -|**Off**|The device is not powered
165 +=== 2.3.1 DS1 – power indicator ===
145 145  
146 -1.
147 -11.
148 -111. DS2 – operation indicator
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
149 149  
150 -|**State**|**Description**
151 -|**Blinking green**|The BMS firmware is running
152 -|**Off**|The BMS firmware is not running
172 +=== 2.3.2 DS2 – operation indicator ===
153 153  
154 -1.
155 -11.
156 -111. DS3 – communication indicator
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
157 157  
158 -|**State**|**Description**
159 -|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
160 -|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
179 +=== 2.3.3 DS3 – communication indicator ===
161 161  
162 -1.
163 -11.
164 -111. DS4 – error indicator
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
165 165  
166 -|**State**|**Description**
167 -|**Blinking red**|Errors in communication with BMS Logic
186 +=== 2.3.4 DS4 – error indicator ===
168 168  
169 -1.
170 -11.
171 -111. DS7 – relay 1 indicator
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
172 172  
173 -|S**tate**|**Description**
174 -|**Lights green**|Relay #1 is closed
175 -|**Off**|Relay #1 is opened
192 +=== 2.3.5 DS7 – relay 1 indicator ===
176 176  
177 -1.
178 -11.
179 -111. DS8 – relay 2 indicator
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
180 180  
181 -|**State**|**Description**
182 -|**Lights green**|Relay #2 is closed
183 -|**Off**|Relay #2 is opened
199 +=== 2.3.6 DS8 – relay 2 indicator ===
184 184  
185 -1.
186 -11.
187 -111. DS5 – relay 3 indicator
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
188 188  
189 -|**State**|**Description**
190 -|**Lights green**|Relay #3 is closed
191 -|**Off**|Relay #3 is opened
206 +=== 2.3.7 DS5 – relay 3 indicator ===
192 192  
193 -1.
194 -11.
195 -111. DS6 – relay 4 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
196 196  
197 -|**State**|**Description**
198 -|**Lights green**|Relay #4 is closed
199 -|**Off**|Relay #4 is opened
213 +=== 2.3.8 DS6 – relay 4 indicator ===
200 200  
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
219 +
201 201  
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