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From version 21.3
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1 -2. Connection procedure
1 +2. Installation and connection
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1 -Controllers.BMS Main 2\.1.WebHome
1 +Battery management systems.BMS Main 2\.1.WebHome
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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 +|**Parameter**|**Value**
11 +|Overall dimensions (length × width × height), mm|120 × 120 × 32
12 +|Mounting dimensions (length × width), mm|114 × 114
13 +|Mounting holes|M3
14 +
15 +== Connection procedure ==
16 +
1 1  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.
2 2  
3 3  1. Connect the charging and discharging contactors to the P6-P9 headers.
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5 5  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.
6 6  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.
7 7  
8 -= ​​​​Headers description =
24 +== ​​​​Headers description ==
9 9  
10 10  The BMS Main 2.1 headers are shown in figure below.
11 11  
12 -[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
28 +[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
13 13  
14 -(% class="wikigeneratedid" %)
15 -Following chapters describes the BMS Main 2.1 headers pinout.
30 +(% class="box warningmessage" %)
31 +(((
32 +**Attention!**
33 +All headers are shown from the device side!
34 +)))
16 16  
17 17  === P1 – header for power supply ===
18 18  
19 -[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
38 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
20 20  
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
40 +|**Pin**|**Name**|**Description**
41 +|**1**|**GND**|Ground
42 +|**2**|**V+**|Supply voltage 9-30V
25 25  
26 26  === P15 – header for BMS Logic ===
27 27  
28 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
46 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
29 29  
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
48 +|**Pin**|**Name**|**Description**
49 +|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
50 +|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
51 +|**3**|**+5V**|Supply voltage for BMS Logic
52 +|**4**|**GND**|Ground
36 36  
37 37  === P12 – header for current sensor ===
38 38  
39 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
56 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
40 40  
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)
58 +|**Pin**|**Name**|**Description**
59 +|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
60 +|**2**|**GND**|Ground
61 +|**3**|**Vcs**|ADC input (current sensor output)
62 +|**4**|**Vref**|ADC input (current sensor reference signal)
47 47  
48 48  === P13 – header for humidity sensor ===
49 49  
50 -[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
66 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
51 51  
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)
68 +|**Pin**|**Name**|**Description**
69 +|**1**|**+5V**|Supply voltage 5 V, max 50 mA
70 +|**2**|**GND**|Ground
71 +|**3**|**Vhs**|ADC input (humidity sensor output)
72 +|**4**|**Vts**|ADC input (temperature sensor output)
58 58  
59 59  === P8 – header of relay 1 ===
60 60  
61 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
76 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
62 62  
63 63  By default, relay 1 is used to control the discharging contactor.
64 64  
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
80 +|**Pin**|**Name**|**Description**
81 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
82 +|**2**|**NO**|Normally open contact
69 69  
70 70  === P9 – header of relay 2 ===
71 71  
72 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
86 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
73 73  
74 74  By default, relay 2 is used to output the “Allow charging” signal.
75 75  
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
90 +|**Pin**|**Name**|**Description**
91 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
92 +|**2**|**NO**|Normally open contact
80 80  
81 81  === P6 – header of relay 3 ===
82 82  
83 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
96 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
84 84  
85 85  By default, relay 3 is used to control the charging contactor.
86 86  
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
100 +|**Pin**|**Name**|**Description**
101 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
102 +|**2**|**NO**|Normally open contact
91 91  
92 92  === P7 – header of relay 4 ===
93 93  
94 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
106 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
95 95  
96 96  By default, relay 4 is used to control the heater.
97 97  
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
110 +|**Pin**|**Name**|**Description**
111 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
112 +|**2**|**NO**|Normally open contact
102 102  
103 103  === P14 – header for CAN and RS-485 interfaces ===
104 104  
105 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
116 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
106 106  
107 107  (% style="width:641px" %)
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
119 +|**Pin**|**Name**|**Description**
120 +|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
121 +|**2**|**CAN_H**|CAN H line for communication with external equipment
122 +|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
123 +|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
124 +|**5**|**CAN_L**|CAN L line for communication with external equipment
125 +|**6**|**GND_CAN**|Ground
115 115  
116 116  === P21 – CAN termination resistor jumper ===
117 117  
118 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
129 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
119 119  
120 120  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
121 121  
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125 125  
126 126  === P22 - RS-485 termination resistor jumper ===
127 127  
128 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
139 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
129 129  
130 130  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
131 131  
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
143 +|**Pin**|**Name**|**Description**
144 +|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
145 +|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
135 135  
136 136  === P11 – header for discrete inputs/outputs ===
137 137  
138 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
149 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
139 139  
140 140  |**Pin**|**Name**|**Description**
141 141  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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155 155  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
156 156  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
157 157  
158 -= Indicators =
169 +== Indicators ==
159 159  
160 160  === DS1 – power indicator ===
161 161  
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177 177  
178 178  === DS4 – error indicator ===
179 179  
180 -|**State**|**Description**
181 -|**Blinking red**|Errors in communication with BMS Logic
182 182  
192 +|(**State**|**Description**
193 +|(**Blinking red**|Errors in communication with BMS Logic
194 +
183 183  === DS7 – relay 1 indicator ===
184 184  
185 185  |**State**|**Description**
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188 188  
189 189  === DS8 – relay 2 indicator ===
190 190  
191 -
192 192  |**State**|**Description**
193 193  |**Lights green**|Relay #2 is closed
194 194  |**Off**|Relay #2 is opened
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