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Last modified by Admin on 2025/07/15 17:33
From version 59.1
edited by Admin
on 2025/03/10 15:15
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To version 10.1
edited by Admin
on 2024/11/13 16:59
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Title
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1 -2. Installation and connection
1 +2. Connection
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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +Additional modules.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 =
1 += ​​​​Headers =
3 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 -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 -
20 -1. Connect the charging and discharging contactors to the P6-P9 headers.
21 -1. Connect a current sensor to the P12 header according to its documentation. The positive current direction (indicated by an arrow on the sensor) corresponds to the battery charging. It is recommended to use a shielded cable to connect the current sensor, the shield should be grounded on the side of the current sensor. The cable should be positioned as far as possible from the high current circuits. If the current sensor has a reference voltage line, connect it to pin 4 of the P12 header.
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 -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 -
25 -== ​​​​Headers description ==
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"]]
5 +[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||height="430" width="428"]]
30 30  
31 -(% class="box warningmessage" %)
32 -(((
33 -**Attention!**
34 -All headers are shown from the device side!
35 -)))
7 +== P1 – header for power supply ==
36 36  
37 -=== P1 – header for power supply ===
9 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center" height="93" width="49"]]
38 38  
39 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
40 -
41 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
42 -
43 43  |**Pin**|**Name**|**Description**
44 44  |**1**|**GND**|Ground
45 45  |**2**|**V+**|Supply voltage 9-30V
46 46  
47 -=== P15 – header for BMS Logic ===
15 +== P15 – header for BMS Logic ==
48 48  
49 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
17 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center" height="90" width="83"]]
50 50  
51 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
52 -
53 53  |**Pin**|**Name**|**Description**
54 54  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
55 55  |**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
... ... @@ -56,12 +56,10 @@
56 56  |**3**|**+5V**|Supply voltage for BMS Logic
57 57  |**4**|**GND**|Ground
58 58  
59 -=== P12 – header for current sensor ===
25 +== P12 – header for current sensor ==
60 60  
61 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
27 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center" height="98" width="90"]]
62 62  
63 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
64 -
65 65  |**Pin**|**Name**|**Description**
66 66  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
67 67  |**2**|**GND**|Ground
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68 68  |**3**|**Vcs**|ADC input (current sensor output)
69 69  |**4**|**Vref**|ADC input (current sensor reference signal)
70 70  
71 -=== P13 – header for humidity sensor ===
35 +== P13 – header for humidity sensor ==
72 72  
73 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
37 +[[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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80 80  |**3**|**Vhs**|ADC input (humidity sensor output)
81 81  |**4**|**Vts**|ADC input (temperature sensor output)
82 82  
83 -=== P8 – header of relay 1 ===
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
46 +1.
47 +11.
48 +111. P8 – header of relay 1
86 86  
87 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
50 +[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.emz]]
88 88  
89 89  By default, relay 1 is used to control the discharging contactor.
90 90  
54 +
91 91  |**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
56 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor
96 96  
97 -=== P9 – header of relay 2 ===
60 +1.
61 +11.
62 +111. P9 – header of relay 2
98 98  
99 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
64 +[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.emz]]
100 100  
101 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
102 -
103 103  By default, relay 2 is used to output the “Allow charging” signal.
104 104  
105 -|**Pin**|**Name**|**Description**
106 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
107 -|**2**|**NO**|Normally open contact
108 108  
109 -=== P6 – header of relay 3 ===
110 -
111 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
112 -
113 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
114 -
115 -By default, relay 3 is used to control the charging contactor.
116 -
117 117  |**Pin**|**Name**|**Description**
118 -|**1**|**V+**|Switching voltage up to 55V,
119 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
70 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
120 120  |**2**|**NO**|Normally open contact
121 121  
122 -=== P7 – header of relay 4 ===
123 123  
124 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
125 125  
126 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
127 -
128 -By default, relay 4 is used to control the heater.
129 -
130 -|**Pin**|**Name**|**Description**
131 -|**1**|**V+**|Switching voltage up to 55V,
132 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
133 -|**2**|**NO**|Normally open contact
134 -
135 -=== P14 – header for CAN and RS-485 interfaces ===
136 -
137 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
138 -
139 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
140 -
141 -(% style="width:641px" %)
142 -|**Pin**|**Name**|**Description**
143 -|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
144 -|**2**|**CAN_H**|CAN H line for communication with external equipment
145 -|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
146 -|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
147 -|**5**|**CAN_L**|CAN L line for communication with external equipment
148 -|**6**|**GND_CAN**|Ground
149 -
150 -=== P21 – CAN termination resistor jumper ===
151 -
152 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
153 -
154 -To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
155 -
156 -|**Pin**|**Name**|**Description**
157 -|**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
158 -|**2-3**|**-**|Termination resistor 120 Ohm is not connected
159 -
160 -=== P22 - RS-485 termination resistor jumper ===
161 -
162 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
163 -
164 -To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
165 -
166 -|**Pin**|**Name**|**Description**
167 -|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
168 -|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
169 -
170 -=== P11 – header for discrete inputs/outputs ===
171 -
172 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
173 -
174 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
175 -
176 -|**Pin**|**Name**|**Description**
177 -|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
178 -|**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
179 -|**15**|**IN_2**|Discrete input #2 “dry contact” (+5V)
180 -|**7**|**GND_2**|Discrete input #2 “dry contact” (ground)
181 -|**14**|**IN_3**|Discrete input #3 “dry contact” (+5V)
182 -|**6**|**GND_3**|Discrete input #3 “dry contact” (ground)
183 -|**13**|**IN_4**|Discrete input #4 “dry contact” (+5V)
184 -|**5**|**GND_4**|Discrete input #4 “dry contact” (ground)
185 -|**12**|**OUT_4**|Discrete output #4 (+5V, 20mA)
186 -|**4**|**GND_OUT_4**|Discrete output #4 (ground)
187 -|**11**|**OUT_3**|Discrete output #3 (+5V, 20mA)
188 -|**3**|**GND_OUT_3**|Discrete output #3 (ground)
189 -|**10**|**OUT_2**|Discrete output #2 (+5V, 20mA)
190 -|**2**|**GND_OUT_2**|Discrete output #2 (ground)
191 -|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
192 -|**1**|**GND_OUT_1**|Discrete output #1 (ground)
193 -
194 -== Indicators ==
195 -
196 -=== DS1 – power indicator ===
197 -
198 -|**State**|**Description**
199 -|**Lights red**|The device is powered
200 -|**Off**|The device is not powered
201 -
202 -=== DS2 – operation indicator ===
203 -
204 -|**State**|**Description**
205 -|**Blinking green**|The BMS firmware is running
206 -|**Off**|The BMS firmware is not running
207 -
208 -=== DS3 – communication indicator ===
209 -
210 -|**State**|**Description**
211 -|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
212 -|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
213 -
214 -=== DS4 – error indicator ===
215 -
216 -
217 -|(**State**|**Description**
218 -|(**Blinking red**|Errors in communication with BMS Logic
219 -
220 -=== DS7 – relay 1 indicator ===
221 -
222 -|**State**|**Description**
223 -|**Lights green**|Relay #1 is closed
224 -|**Off**|Relay #1 is opened
225 -
226 -=== DS8 – relay 2 indicator ===
227 -
228 -|**State**|**Description**
229 -|**Lights green**|Relay #2 is closed
230 -|**Off**|Relay #2 is opened
231 -
232 -=== DS5 – relay 3 indicator ===
233 -
234 -|**State**|**Description**
235 -|**Lights green**|Relay #3 is closed
236 -|**Off**|Relay #3 is opened
237 -
238 -=== DS6 – relay 4 indicator ===
239 -
240 -|**State**|**Description**
241 -|**Lights green**|Relay #4 is closed
242 -|**Off**|Relay #4 is opened
243 -
244 244  
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