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Title
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1 -2. Installation and connection
1 +2. Connection procedure
Parent
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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +Controllers.BMS Main 2\.1.WebHome
Content
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1 -(% data-numbered-headings-start="2" style="--numbered-headings-start: 1;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 -= Installation and connection =
3 -
4 -== Installation procedure ==
5 -
6 -Overall and mounting dimensions of the BMS Main 2.1 are shown below.
7 -
8 -[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
9 -
10 -(% style="width:494px" %)
11 -|**Parameter**|(% style="width:178px" %)**Value**
12 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
13 -|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
14 -|Mounting holes|(% style="width:178px" %)M3
15 -
16 -== Connection procedure ==
17 -
18 18  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.
19 19  
20 20  1. Connect the charging and discharging contactors to the P6-P9 headers.
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22 22  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.
23 23  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.
24 24  
25 -== ​​​​Headers description ==
8 += ​​​​Headers description =
26 26  
27 27  The BMS Main 2.1 headers are shown in figure below.
28 28  
29 -[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
12 +[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
30 30  
31 -(% class="box warningmessage" %)
32 -(((
33 -**Attention!**
34 -All headers are shown from the device side!
35 -)))
14 +(% class="wikigeneratedid" %)
15 +Following chapters describes the BMS Main 2.1 headers pinout.
36 36  
37 37  === P1 – header for power supply ===
38 38  
39 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
19 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
40 40  
41 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
21 +(% style="width:339px" %)
22 +|(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
23 +|(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
24 +|(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
42 42  
43 -|**Pin**|**Name**|**Description**
44 -|**1**|**GND**|Ground
45 -|**2**|**V+**|Supply voltage 9-30V
46 -
47 47  === P15 – header for BMS Logic ===
48 48  
49 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
28 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
50 50  
51 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
30 +(% style="width:524px" %)
31 +|(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
32 +|(% style="width:69px" %)**1**|(% style="width:97px" %)**RS485_A**|(% style="width:355px" %)RS-485 line A for communication with BMS Logic
33 +|(% style="width:69px" %)**2**|(% style="width:97px" %)**RS485_B**|(% style="width:355px" %)RS-485 line B for communication with BMS Logic
34 +|(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
35 +|(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
52 52  
53 -|**Pin**|**Name**|**Description**
54 -|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
55 -|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
56 -|**3**|**+5V**|Supply voltage for BMS Logic
57 -|**4**|**GND**|Ground
58 -
59 59  === P12 – header for current sensor ===
60 60  
61 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
39 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
62 62  
63 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
41 +(% style="width:531px" %)
42 +|(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
43 +|(% style="width:75px" %)**1**|(% style="width:93px" %)**+5V**|(% style="width:360px" %)Supply voltage for the current sensor 5V, max 50 mA
44 +|(% style="width:75px" %)**2**|(% style="width:93px" %)**GND**|(% style="width:360px" %)Ground
45 +|(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
46 +|(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
64 64  
65 -|**Pin**|**Name**|**Description**
66 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
67 -|**2**|**GND**|Ground
68 -|**3**|**Vcs**|ADC input (current sensor output)
69 -|**4**|**Vref**|ADC input (current sensor reference signal)
70 -
71 71  === P13 – header for humidity sensor ===
72 72  
73 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
50 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
74 74  
75 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
52 +(% style="width:531px" %)
53 +|(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
54 +|(% style="width:77px" %)**1**|(% style="width:92px" %)**+5V**|(% style="width:359px" %)Supply voltage 5 V, max 50 mA
55 +|(% style="width:77px" %)**2**|(% style="width:92px" %)**GND**|(% style="width:359px" %)Ground
56 +|(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
57 +|(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
76 76  
77 -|**Pin**|**Name**|**Description**
78 -|**1**|**+5V**|Supply voltage 5 V, max 50 mA
79 -|**2**|**GND**|Ground
80 -|**3**|**Vhs**|ADC input (humidity sensor output)
81 -|**4**|**Vts**|ADC input (temperature sensor output)
82 -
83 83  === P8 – header of relay 1 ===
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
61 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
86 86  
87 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
88 -
89 89  By default, relay 1 is used to control the discharging contactor.
90 90  
91 -|**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
93 -|**2**|**NO**|Normally open contact
65 +(% style="width:527px" %)
66 +|(% style="width:82px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:351px" %)**Description**
67 +|(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
68 +|(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
94 94  
95 95  === P9 – header of relay 2 ===
96 96  
97 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
72 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
98 98  
99 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
100 -
101 101  By default, relay 2 is used to output the “Allow charging” signal.
102 102  
103 -|**Pin**|**Name**|**Description**
104 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
105 -|**2**|**NO**|Normally open contact
76 +(% style="width:524px" %)
77 +|(% style="width:89px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:341px" %)**Description**
78 +|(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
79 +|(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
106 106  
107 107  === P6 – header of relay 3 ===
108 108  
109 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
83 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
110 110  
111 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
112 -
113 113  By default, relay 3 is used to control the charging contactor.
114 114  
115 -|**Pin**|**Name**|**Description**
116 -|**1**|**V+**|Switching voltage up to 55V,
117 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
118 -|**2**|**NO**|Normally open contact
87 +(% style="width:524px" %)
88 +|(% style="width:101px" %)**Pin**|(% style="width:88px" %)**Name**|(% style="width:332px" %)**Description**
89 +|(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
90 +|(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
119 119  
120 120  === P7 – header of relay 4 ===
121 121  
122 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
94 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
123 123  
124 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
125 -
126 126  By default, relay 4 is used to control the heater.
127 127  
128 -|**Pin**|**Name**|**Description**
129 -|**1**|**V+**|Switching voltage up to 55V,
130 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
131 -|**2**|**NO**|Normally open contact
98 +(% style="width:530px" %)
99 +|(% style="width:102px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:332px" %)**Description**
100 +|(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
101 +|(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)Normally open contact
132 132  
133 133  === P14 – header for CAN and RS-485 interfaces ===
134 134  
135 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
105 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
136 136  
137 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
138 -
139 139  (% style="width:641px" %)
140 -|**Pin**|**Name**|**Description**
141 -|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
142 -|**2**|**CAN_H**|CAN H line for communication with external equipment
143 -|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
144 -|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
145 -|**5**|**CAN_L**|CAN L line for communication with external equipment
146 -|**6**|**GND_CAN**|Ground
108 +|(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
109 +|(% style="width:107px" %)**1**|(% style="width:127px" %)**EXT_RS485_A**|(% style="width:404px" %)RS-485 line A for communication with external equipment
110 +|(% style="width:107px" %)**2**|(% style="width:127px" %)**CAN_H**|(% style="width:404px" %)CAN H line for communication with external equipment
111 +|(% style="width:107px" %)**3**|(% style="width:127px" %)**+5V_CAN**|(% style="width:404px" %)Supply voltage 5V for external devices, max 200 mA
112 +|(% style="width:107px" %)**4**|(% style="width:127px" %)**EXT_RS485_B**|(% style="width:404px" %)RS-485 line B for communication with external equipment
113 +|(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
114 +|(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
147 147  
148 148  === P21 – CAN termination resistor jumper ===
149 149  
150 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
118 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
151 151  
152 152  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
153 153  
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157 157  
158 158  === P22 - RS-485 termination resistor jumper ===
159 159  
160 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
128 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
161 161  
162 162  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
163 163  
164 -|**Pin**|**Name**|**Description**
165 -|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
166 -|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
132 +|**Pin**|(% style="width:108px" %)**Name**|(% style="width:1296px" %)**Description**
133 +|**1-2**|(% style="width:108px" %)**120 Ohm**|(% style="width:1296px" %)Terminating resistor 120 Ohm is connected
134 +|**2-3**|(% style="width:108px" %)**-**|(% style="width:1296px" %)Terminating resistor 120 Ohm is not connected
167 167  
168 168  === P11 – header for discrete inputs/outputs ===
169 169  
170 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
138 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
171 171  
172 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
173 -
174 174  |**Pin**|**Name**|**Description**
175 175  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
176 176  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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189 189  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
190 190  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
191 191  
192 -== Indicators ==
158 += Indicators =
193 193  
194 194  === DS1 – power indicator ===
195 195  
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211 211  
212 212  === DS4 – error indicator ===
213 213  
180 +|**State**|**Description**
181 +|**Blinking red**|Errors in communication with BMS Logic
214 214  
215 -|(**State**|**Description**
216 -|(**Blinking red**|Errors in communication with BMS Logic
217 -
218 218  === DS7 – relay 1 indicator ===
219 219  
220 220  |**State**|**Description**
... ... @@ -223,6 +223,7 @@
223 223  
224 224  === DS8 – relay 2 indicator ===
225 225  
191 +
226 226  |**State**|**Description**
227 227  |**Lights green**|Relay #2 is closed
228 228  |**Off**|Relay #2 is opened
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