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Title
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1 -2. Installation and connection
1 +2. Connection procedure
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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +Controllers.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 -(% 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"]]
76 -
77 77  |**Pin**|**Name**|**Description**
78 78  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
79 79  |**2**|**GND**|Ground
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82 82  
83 83  === P8 – header of relay 1 ===
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
60 +[[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 91  |**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
65 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor connection example for all relays:
96 -
97 -[[image:1741619814065-850.png||height="189" width="252"]]
98 -
99 99  === P9 – header of relay 2 ===
100 100  
101 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
70 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
102 102  
103 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 -
105 105  By default, relay 2 is used to output the “Allow charging” signal.
106 106  
107 107  |**Pin**|**Name**|**Description**
108 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
75 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
109 109  |**2**|**NO**|Normally open contact
110 110  
111 -Contactor connection example: see relay 1.
112 -
113 113  === P6 – header of relay 3 ===
114 114  
115 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
80 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
116 116  
117 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
118 -
119 119  By default, relay 3 is used to control the charging contactor.
120 120  
121 121  |**Pin**|**Name**|**Description**
122 -|**1**|**V+**|Switching voltage up to 55V,
123 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
85 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
124 124  |**2**|**NO**|Normally open contact
125 125  
126 -Contactor connection example: see relay 1.
127 -
128 128  === P7 – header of relay 4 ===
129 129  
130 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
90 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
131 131  
132 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
133 -
134 134  By default, relay 4 is used to control the heater.
135 135  
136 136  |**Pin**|**Name**|**Description**
137 -|**1**|**V+**|Switching voltage up to 55V,
138 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
139 139  |**2**|**NO**|Normally open contact
140 140  
141 -Contactor connection example: see relay 1.
142 -
143 143  === P14 – header for CAN and RS-485 interfaces ===
144 144  
145 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
100 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
146 146  
147 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
148 -
149 -(% style="width:641px" %)
150 150  |**Pin**|**Name**|**Description**
151 151  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
152 152  |**2**|**CAN_H**|CAN H line for communication with external equipment
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157 157  
158 158  === P21 – CAN termination resistor jumper ===
159 159  
160 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
112 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
161 161  
162 162  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
163 163  
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167 167  
168 168  === P22 - RS-485 termination resistor jumper ===
169 169  
170 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
122 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
171 171  
172 172  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
173 173  
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177 177  
178 178  === P11 – header for discrete inputs/outputs ===
179 179  
180 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
132 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
181 181  
182 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
183 -
184 184  |**Pin**|**Name**|**Description**
185 185  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
186 186  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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199 199  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
200 200  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
201 201  
202 -== Indicators ==
152 += Indicators =
203 203  
204 204  === DS1 – power indicator ===
205 205  
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221 221  
222 222  === DS4 – error indicator ===
223 223  
174 +|**State**|**Description**
175 +|**Blinking red**|Errors in communication with BMS Logic
224 224  
225 -|(**State**|**Description**
226 -|(**Blinking red**|Errors in communication with BMS Logic
227 -
228 228  === DS7 – relay 1 indicator ===
229 229  
230 230  |**State**|**Description**
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233 233  
234 234  === DS8 – relay 2 indicator ===
235 235  
185 +
236 236  |**State**|**Description**
237 237  |**Lights green**|Relay #2 is closed
238 238  |**Off**|Relay #2 is opened
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