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From version 67.1
edited by Admin
on 2025/07/15 17:30
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To version 21.1
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on 2024/11/13 17:39
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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
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 -== Safety rules ==
5 -
6 -To perform the protection functions, the BMS must be able to disconnect the battery from the load and charger. To do this, **at least one contactor** able to break the load and charge circuits must be connected to the BMS.
7 -
8 -Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.
9 -
10 -(% class="box errormessage" %)
11 -(((
12 -The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.
13 -)))
14 -
15 -(% class="box errormessage" %)
16 -(((
17 -The system is not designed to operate with batteries whose total voltage exceeds 1200 V.
18 -)))
19 -
20 -== Installation procedure ==
21 -
22 -Overall and mounting dimensions of the BMS Main 2.1 are shown below.
23 -
24 -
25 -(% style="width:494px" %)
26 -|**Parameter**|(% style="width:178px" %)**Value**
27 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 17
28 -|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
29 -|Mounting holes|(% style="width:178px" %)M3
30 -
31 -== Connection procedure ==
32 -
33 33  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.
34 34  
35 35  1. Connect the charging and discharging contactors to the P6-P9 headers.
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37 37  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.
38 38  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.
39 39  
40 -== ​​​​Headers description ==
8 += ​​​​Headers description =
41 41  
42 42  The BMS Main 2.1 headers are shown in figure below.
43 43  
44 -[[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"]]
45 45  
46 -(% class="box warningmessage" %)
47 -(((
48 -**Attention!**
49 -All headers are shown from the device side!
50 -)))
14 +(% class="wikigeneratedid" %)
15 +Following chapters describes the BMS Main 2.1 headers pinout.
51 51  
52 52  === P1 – header for power supply ===
53 53  
54 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
19 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
55 55  
56 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
57 -
58 58  |**Pin**|**Name**|**Description**
59 59  |**1**|**GND**|Ground
60 60  |**2**|**V+**|Supply voltage 9-30V
... ... @@ -61,10 +61,8 @@
61 61  
62 62  === P15 – header for BMS Logic ===
63 63  
64 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
27 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
65 65  
66 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
67 -
68 68  |**Pin**|**Name**|**Description**
69 69  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
70 70  |**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
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73 73  
74 74  === P12 – header for current sensor ===
75 75  
76 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
37 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
77 77  
78 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
79 -
80 80  |**Pin**|**Name**|**Description**
81 81  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
82 82  |**2**|**GND**|Ground
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85 85  
86 86  === P13 – header for humidity sensor ===
87 87  
88 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
47 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
89 89  
90 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
91 -
92 92  |**Pin**|**Name**|**Description**
93 93  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
94 94  |**2**|**GND**|Ground
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97 97  
98 98  === P8 – header of relay 1 ===
99 99  
100 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
57 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
101 101  
102 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
103 -
104 104  By default, relay 1 is used to control the discharging contactor.
105 105  
106 106  |**Pin**|**Name**|**Description**
107 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
62 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
108 108  |**2**|**NO**|Normally open contact
109 109  
110 -Contactor connection example for all relays:
111 -
112 -[[image:1741619814065-850.png||height="189" width="252"]]
113 -
114 114  === P9 – header of relay 2 ===
115 115  
116 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
67 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
117 117  
118 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
119 -
120 120  By default, relay 2 is used to output the “Allow charging” signal.
121 121  
122 122  |**Pin**|**Name**|**Description**
123 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
72 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
124 124  |**2**|**NO**|Normally open contact
125 125  
126 -Contactor connection example: see relay 1.
127 -
128 128  === P6 – header of relay 3 ===
129 129  
130 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
77 +[[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 3 is used to control the charging contactor.
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)
82 +|**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  === P7 – header of relay 4 ===
144 144  
145 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
87 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
146 146  
147 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
148 -
149 149  By default, relay 4 is used to control the heater.
150 150  
151 151  |**Pin**|**Name**|**Description**
152 -|**1**|**V+**|Switching voltage up to 55V,
153 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
92 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
154 154  |**2**|**NO**|Normally open contact
155 155  
156 -Contactor connection example: see relay 1.
157 -
158 158  === P14 – header for CAN and RS-485 interfaces ===
159 159  
160 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
97 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
161 161  
162 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
163 -
164 -(% style="width:641px" %)
165 165  |**Pin**|**Name**|**Description**
166 166  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
167 167  |**2**|**CAN_H**|CAN H line for communication with external equipment
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172 172  
173 173  === P21 – CAN termination resistor jumper ===
174 174  
175 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
109 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
176 176  
177 177  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
178 178  
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182 182  
183 183  === P22 - RS-485 termination resistor jumper ===
184 184  
185 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
119 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
186 186  
187 187  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
188 188  
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192 192  
193 193  === P11 – header for discrete inputs/outputs ===
194 194  
195 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
129 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
196 196  
197 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
198 -
199 199  |**Pin**|**Name**|**Description**
200 200  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
201 201  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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214 214  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
215 215  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
216 216  
217 -== Indicators ==
149 += Indicators =
218 218  
219 219  === DS1 – power indicator ===
220 220  
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236 236  
237 237  === DS4 – error indicator ===
238 238  
171 +|**State**|**Description**
172 +|**Blinking red**|Errors in communication with BMS Logic
239 239  
240 -|(**State**|**Description**
241 -|(**Blinking red**|Errors in communication with BMS Logic
242 -
243 243  === DS7 – relay 1 indicator ===
244 244  
245 245  |**State**|**Description**
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248 248  
249 249  === DS8 – relay 2 indicator ===
250 250  
182 +
251 251  |**State**|**Description**
252 252  |**Lights green**|Relay #2 is closed
253 253  |**Off**|Relay #2 is opened
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