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From version 63.1
edited by Admin
on 2025/03/18 12:17
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To version 21.2
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on 2024/11/19 07:55
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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 -It is not recommended to use the system in batteries formed by several series of cells connected in parallel. To increase capacity, it is recommended to connect several cells in parallel groups, and then connect the groups in series.
11 -
12 -(% class="box warningmessage" %)
13 -(((
14 -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.
15 -)))
16 -
17 -(% class="box errormessage" %)
18 -(((
19 -**The system is not designed to operate with batteries whose total voltage exceeds 1200 V.**
20 -)))
21 -
22 -== Installation procedure ==
23 -
24 -Overall and mounting dimensions of the BMS Main 2.1 are shown below.
25 -
26 -[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
27 -
28 -(% style="width:494px" %)
29 -|**Parameter**|(% style="width:178px" %)**Value**
30 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
31 -|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
32 -|Mounting holes|(% style="width:178px" %)M3
33 -
34 -== Connection procedure ==
35 -
36 36  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.
37 37  
38 38  1. Connect the charging and discharging contactors to the P6-P9 headers.
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40 40  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.
41 41  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.
42 42  
43 -== ​​​​Headers description ==
8 += ​​​​Headers description =
44 44  
45 45  The BMS Main 2.1 headers are shown in figure below.
46 46  
47 -[[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"]]
48 48  
49 -(% class="box warningmessage" %)
50 -(((
51 -**Attention!**
52 -All headers are shown from the device side!
53 -)))
14 +(% class="wikigeneratedid" %)
15 +Following chapters describes the BMS Main 2.1 headers pinout.
54 54  
55 55  === P1 – header for power supply ===
56 56  
57 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
19 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
58 58  
59 -[[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
60 60  
61 -|**Pin**|**Name**|**Description**
62 -|**1**|**GND**|Ground
63 -|**2**|**V+**|Supply voltage 9-30V
64 -
65 65  === P15 – header for BMS Logic ===
66 66  
67 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
28 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
68 68  
69 -[[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
70 70  
71 -|**Pin**|**Name**|**Description**
72 -|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
73 -|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
74 -|**3**|**+5V**|Supply voltage for BMS Logic
75 -|**4**|**GND**|Ground
76 -
77 77  === P12 – header for current sensor ===
78 78  
79 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
39 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
80 80  
81 -[[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)
82 82  
83 -|**Pin**|**Name**|**Description**
84 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
85 -|**2**|**GND**|Ground
86 -|**3**|**Vcs**|ADC input (current sensor output)
87 -|**4**|**Vref**|ADC input (current sensor reference signal)
88 -
89 89  === P13 – header for humidity sensor ===
90 90  
91 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
50 +[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
92 92  
93 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
94 -
95 95  |**Pin**|**Name**|**Description**
96 96  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
97 97  |**2**|**GND**|Ground
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100 100  
101 101  === P8 – header of relay 1 ===
102 102  
103 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
60 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
104 104  
105 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
106 -
107 107  By default, relay 1 is used to control the discharging contactor.
108 108  
109 109  |**Pin**|**Name**|**Description**
110 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
65 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
111 111  |**2**|**NO**|Normally open contact
112 112  
113 -Contactor connection example for all relays:
114 -
115 -[[image:1741619814065-850.png||height="189" width="252"]]
116 -
117 117  === P9 – header of relay 2 ===
118 118  
119 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
70 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
120 120  
121 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
122 -
123 123  By default, relay 2 is used to output the “Allow charging” signal.
124 124  
125 125  |**Pin**|**Name**|**Description**
126 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
75 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
127 127  |**2**|**NO**|Normally open contact
128 128  
129 -Contactor connection example: see relay 1.
130 -
131 131  === P6 – header of relay 3 ===
132 132  
133 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
80 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
134 134  
135 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
136 -
137 137  By default, relay 3 is used to control the charging contactor.
138 138  
139 139  |**Pin**|**Name**|**Description**
140 -|**1**|**V+**|Switching voltage up to 55V,
141 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
85 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
142 142  |**2**|**NO**|Normally open contact
143 143  
144 -Contactor connection example: see relay 1.
145 -
146 146  === P7 – header of relay 4 ===
147 147  
148 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
90 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
149 149  
150 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
151 -
152 152  By default, relay 4 is used to control the heater.
153 153  
154 154  |**Pin**|**Name**|**Description**
155 -|**1**|**V+**|Switching voltage up to 55V,
156 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
157 157  |**2**|**NO**|Normally open contact
158 158  
159 -Contactor connection example: see relay 1.
160 -
161 161  === P14 – header for CAN and RS-485 interfaces ===
162 162  
163 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
100 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
164 164  
165 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
166 -
167 -(% style="width:641px" %)
168 168  |**Pin**|**Name**|**Description**
169 169  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
170 170  |**2**|**CAN_H**|CAN H line for communication with external equipment
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175 175  
176 176  === P21 – CAN termination resistor jumper ===
177 177  
178 -[[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"]]
179 179  
180 180  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
181 181  
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185 185  
186 186  === P22 - RS-485 termination resistor jumper ===
187 187  
188 -[[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"]]
189 189  
190 190  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
191 191  
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195 195  
196 196  === P11 – header for discrete inputs/outputs ===
197 197  
198 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
132 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
199 199  
200 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
201 -
202 202  |**Pin**|**Name**|**Description**
203 203  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
204 204  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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217 217  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
218 218  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
219 219  
220 -== Indicators ==
152 += Indicators =
221 221  
222 222  === DS1 – power indicator ===
223 223  
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239 239  
240 240  === DS4 – error indicator ===
241 241  
174 +|**State**|**Description**
175 +|**Blinking red**|Errors in communication with BMS Logic
242 242  
243 -|(**State**|**Description**
244 -|(**Blinking red**|Errors in communication with BMS Logic
245 -
246 246  === DS7 – relay 1 indicator ===
247 247  
248 248  |**State**|**Description**
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251 251  
252 252  === DS8 – relay 2 indicator ===
253 253  
185 +
254 254  |**State**|**Description**
255 255  |**Lights green**|Relay #2 is closed
256 256  |**Off**|Relay #2 is opened
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