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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 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 -|**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
13 -
14 -== 2.2 Connection procedure ==
15 -
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.
17 -
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 -
23 -== 2.3 ​​​​Headers description ==
24 -
25 25  The BMS Main 2.1 headers are shown in figure below.
26 26  
27 27  [[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
28 28  
29 -(% class="wikigeneratedid" %)
30 -Following chapters describes the BMS Main 2.1 headers pinout.
7 +=== P1 – header for power supply ===
31 31  
32 -=== 2.3.1 P1 – header for power supply ===
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
33 33  
34 -[[image:1731516593096-166.png||height="80" width="42"]]
11 +|**Pin**|**Name**|**Description**
12 +|**1**|**GND**|Ground
13 +|**2**|**V+**|Supply voltage 9-30V
35 35  
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
15 +=== P15 – header for BMS Logic ===
40 40  
41 -=== 2.3.2 P15 – header for BMS Logic ===
17 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
42 42  
43 -[[image:1731516577472-301.png||height="77" width="71"]]
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
44 44  
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
25 +=== P12 – header for current sensor ===
51 51  
52 -=== 2.3.3 P12 – header for current sensor ===
27 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
53 53  
54 -[[image:1731516685999-633.png||height="74" width="68"]]
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)
55 55  
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)
35 +=== P13 – header for humidity sensor ===
62 62  
63 -=== 2.3.4 P13 – header for humidity sensor ===
37 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
64 64  
65 -[[image:1731516942455-641.png||height="70" width="64"]]
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)
66 66  
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)
45 +=== P8 – header of relay 1 ===
73 73  
74 -=== 2.3.5 P8 – header of relay 1 ===
47 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
75 75  
76 -[[image:1731517023208-641.png||height="80" width="42"]]
77 -
78 78  By default, relay 1 is used to control the discharging contactor.
79 79  
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
51 +|**Pin**|**Name**|**Description**
52 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
53 +|**2**|**NO**|Normally open contact
84 84  
85 -=== 2.3.6 P9 – header of relay 2 ===
55 +=== P9 – header of relay 2 ===
86 86  
87 -[[image:1731517025702-799.png||height="71" width="37"]]
57 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
88 88  
89 89  By default, relay 2 is used to output the “Allow charging” signal.
90 90  
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
61 +|**Pin**|**Name**|**Description**
62 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
63 +|**2**|**NO**|Normally open contact
95 95  
96 -=== 2.3.7 P6 – header of relay 3 ===
65 +=== P6 – header of relay 3 ===
97 97  
98 -[[image:1731517025702-799.png||height="67" width="35"]]
67 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
99 99  
100 100  By default, relay 3 is used to control the charging contactor.
101 101  
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
71 +|**Pin**|**Name**|**Description**
72 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
73 +|**2**|**NO**|Normally open contact
106 106  
107 -=== 2.3.8 P7 – header of relay 4 ===
75 +=== P7 – header of relay 4 ===
108 108  
109 -[[image:1731517025702-799.png||height="65" width="34"]]
77 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
110 110  
111 111  By default, relay 4 is used to control the heater.
112 112  
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
81 +**Pin**|**Name**|**Description**
82 +**1**|**V+**|Switching voltage (up to 55V, max 8A)
83 +**2**|**NO**|Normally open contact
117 117  
118 -=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
85 +=== P14 – header for CAN and RS-485 interfaces ===
119 119  
120 -[[image:1731517180930-597.png||height="81" width="113"]]
87 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
121 121  
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
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
130 130  
131 -=== 2.3.10 P21 – CAN termination resistor jumper ===
97 +=== P21 – CAN termination resistor jumper ===
132 132  
133 -[[image:1731517188900-976.png||height="78" width="149"]]
99 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
134 134  
135 135  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
136 136  
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
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
141 141  
142 -=== 2.3.11 P22 - RS-485 termination resistor jumper ===
107 +=== P22 - RS-485 termination resistor jumper ===
143 143  
144 -[[image:1731517195672-298.png||height="81" width="155"]]
109 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
145 145  
146 146  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
147 147  
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
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
152 152  
153 -=== 2.3.12 P11 – header for discrete inputs/outputs ===
117 +=== P11 – header for discrete inputs/outputs ===
154 154  
155 -[[image:1731517206246-979.png||height="81" width="258"]]
119 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
156 156  
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)
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)
175 175  
176 -= 2.4 Indicators =
139 += Indicators =
177 177  
178 -=== 2.4.1 DS1 – power indicator ===
141 +=== DS1 – power indicator ===
179 179  
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
143 +|**State**|**Description**
144 +|**Lights red**|The device is powered
145 +|**Off**|The device is not powered
184 184  
185 -=== 2.4.2 DS2 – operation indicator ===
147 +=== DS2 – operation indicator ===
186 186  
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
149 +|**State**|**Description**
150 +|**Blinking green**|The BMS firmware is running
151 +|**Off**|The BMS firmware is not running
191 191  
192 -=== 2.4.3 DS3 – communication indicator ===
153 +=== DS3 – communication indicator ===
193 193  
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
155 +|**State**|**Description**
156 +|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
157 +|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
198 198  
199 -=== 2.4.4 DS4 – error indicator ===
159 +=== DS4 – error indicator ===
200 200  
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
161 +|**State**|**Description**
162 +|**Blinking red**|Errors in communication with BMS Logic
204 204  
205 -=== 2.4.5 DS7 – relay 1 indicator ===
164 +=== DS7 – relay 1 indicator ===
206 206  
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
166 +|**State**|**Description**
167 +|**Lights green**|Relay #1 is closed
168 +|**Off**|Relay #1 is opened
211 211  
212 -=== 2.4.6 DS8 – relay 2 indicator ===
170 +=== DS8 – relay 2 indicator ===
213 213  
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
218 218  
219 -=== 2.4.7 DS5 – relay 3 indicator ===
173 +|**State**|**Description**
174 +|**Lights green**|Relay #2 is closed
175 +|**Off**|Relay #2 is opened
220 220  
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
177 +=== DS5 – relay 3 indicator ===
225 225  
226 -=== 2.4.8 DS6 – relay 4 indicator ===
179 +|**State**|**Description**
180 +|**Lights green**|Relay #3 is closed
181 +|**Off**|Relay #3 is opened
227 227  
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
183 +=== DS6 – relay 4 indicator ===
232 232  
185 +|**State**|**Description**
186 +|**Lights green**|Relay #4 is closed
187 +|**Off**|Relay #4 is opened
188 +
233 233  
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