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Last modified by Admin on 2025/07/15 17:33
From version 64.1
edited by Admin
on 2025/03/18 12:22
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To version 46.1
edited by Admin
on 2024/11/29 14:22
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1 -Battery management systems.BMS Main 2\.1.WebHome
1 +drafts.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 =
1 +== 2.1 Installation procedure ==
3 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 warningmessage" %)
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 22  Overall and mounting dimensions of the BMS Main 2.1 are shown below.
23 23  
24 24  [[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
25 25  
26 -(% style="width:494px" %)
27 -|**Parameter**|(% style="width:178px" %)**Value**
28 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
29 -|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
30 -|Mounting holes|(% style="width:178px" %)M3
7 +|**Parameter**|**Value**
8 +|Overall dimensions (length × width × height), mm|120 × 120 × 32
9 +|Mounting dimensions (length × width), mm|114 × 114
10 +|Mounting holes|M3
31 31  
32 -== Connection procedure ==
12 +== 2.2 Connection procedure ==
33 33  
34 34  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.
35 35  
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38 38  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.
39 39  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.
40 40  
41 -== ​​​​Headers description ==
21 +== 2.3 ​​​​Headers description ==
42 42  
43 43  The BMS Main 2.1 headers are shown in figure below.
44 44  
45 45  [[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
46 46  
47 -(% class="box warningmessage" %)
48 -(((
49 -**Attention!**
50 -All headers are shown from the device side!
51 -)))
27 +(% class="wikigeneratedid" %)
28 +Following chapters describes the BMS Main 2.1 headers pinout.
52 52  
53 -=== P1 – header for power supply ===
30 +=== 2.3.1 P1 – header for power supply ===
54 54  
55 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
32 +[[image:1732198827034-560.png||height="78" width="41"]]
56 56  
57 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
58 -
59 59  |**Pin**|**Name**|**Description**
60 60  |**1**|**GND**|Ground
61 61  |**2**|**V+**|Supply voltage 9-30V
62 62  
63 -=== P15 – header for BMS Logic ===
38 +=== 2.3.2 P15 – header for BMS Logic ===
64 64  
65 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
40 +[[image:1732198890482-787.png||height="77" width="71"]]
66 66  
67 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
68 -
69 69  |**Pin**|**Name**|**Description**
70 70  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
71 71  |**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
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72 72  |**3**|**+5V**|Supply voltage for BMS Logic
73 73  |**4**|**GND**|Ground
74 74  
75 -=== P12 – header for current sensor ===
48 +=== 2.3.3 P12 – header for current sensor ===
76 76  
77 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
50 +[[image:1732198890482-787.png||height="77" width="71"]]
78 78  
79 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
80 -
81 81  |**Pin**|**Name**|**Description**
82 82  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
83 83  |**2**|**GND**|Ground
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84 84  |**3**|**Vcs**|ADC input (current sensor output)
85 85  |**4**|**Vref**|ADC input (current sensor reference signal)
86 86  
87 -=== P13 – header for humidity sensor ===
58 +=== 2.3.4 P13 – header for humidity sensor ===
88 88  
89 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
60 +[[image:1732198896526-660.png||height="70" width="64"]]
90 90  
91 -[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
92 -
93 93  |**Pin**|**Name**|**Description**
94 94  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
95 95  |**2**|**GND**|Ground
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96 96  |**3**|**Vhs**|ADC input (humidity sensor output)
97 97  |**4**|**Vts**|ADC input (temperature sensor output)
98 98  
99 -=== P8 – header of relay 1 ===
68 +=== 2.3.5 P8 – header of relay 1 ===
100 100  
101 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
70 +[[image:1732198827034-560.png||height="78" width="41"]]
102 102  
103 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 -
105 105  By default, relay 1 is used to control the discharging contactor.
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 for all relays:
78 +=== 2.3.6 P9 – header of relay 2 ===
112 112  
113 -[[image:1741619814065-850.png||height="189" width="252"]]
80 +[[image:1732198827034-560.png||height="78" width="41"]]
114 114  
115 -=== P9 – header of relay 2 ===
116 -
117 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
118 -
119 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
120 -
121 121  By default, relay 2 is used to output the “Allow charging” signal.
122 122  
123 123  |**Pin**|**Name**|**Description**
124 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
85 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
125 125  |**2**|**NO**|Normally open contact
126 126  
127 -Contactor connection example: see relay 1.
88 +=== 2.3.7 P6 – header of relay 3 ===
128 128  
129 -=== P6 – header of relay 3 ===
90 +[[image:1732198827034-560.png||height="78" width="41"]]
130 130  
131 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
132 -
133 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
134 -
135 135  By default, relay 3 is used to control the charging contactor.
136 136  
137 137  |**Pin**|**Name**|**Description**
138 -|**1**|**V+**|Switching voltage up to 55V,
139 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
140 140  |**2**|**NO**|Normally open contact
141 141  
142 -Contactor connection example: see relay 1.
98 +=== 2.3.8 P7 – header of relay 4 ===
143 143  
144 -=== P7 – header of relay 4 ===
100 +[[image:1732198827034-560.png||height="78" width="41"]]
145 145  
146 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
147 -
148 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
149 -
150 150  By default, relay 4 is used to control the heater.
151 151  
152 152  |**Pin**|**Name**|**Description**
153 -|**1**|**V+**|Switching voltage up to 55V,
154 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
105 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
155 155  |**2**|**NO**|Normally open contact
156 156  
157 -Contactor connection example: see relay 1.
108 +=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
158 158  
159 -=== P14 – header for CAN and RS-485 interfaces ===
110 +[[image:1731517180930-597.png||height="81" width="113"]]
160 160  
161 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
162 -
163 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
164 -
165 165  (% style="width:641px" %)
166 166  |**Pin**|**Name**|**Description**
167 167  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
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171 171  |**5**|**CAN_L**|CAN L line for communication with external equipment
172 172  |**6**|**GND_CAN**|Ground
173 173  
174 -=== P21 – CAN termination resistor jumper ===
121 +=== 2.3.10 P21 – CAN termination resistor jumper ===
175 175  
176 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
123 +[[image:1731517188900-976.png||height="78" width="149"]]
177 177  
178 178  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
179 179  
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181 181  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
182 182  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
183 183  
184 -=== P22 - RS-485 termination resistor jumper ===
131 +=== 2.3.11 P22 - RS-485 termination resistor jumper ===
185 185  
186 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
133 +[[image:1731517195672-298.png||height="81" width="155"]]
187 187  
188 188  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
189 189  
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191 191  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
192 192  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
193 193  
194 -=== P11 – header for discrete inputs/outputs ===
141 +=== 2.3.12 P11 – header for discrete inputs/outputs ===
195 195  
196 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
143 +[[image:1732198937514-731.png||height="85" width="272"]]
197 197  
198 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
199 -
200 200  |**Pin**|**Name**|**Description**
201 201  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
202 202  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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215 215  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
216 216  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
217 217  
218 -== Indicators ==
163 += 2.4 Indicators =
219 219  
220 -=== DS1 – power indicator ===
165 +=== 2.4.1 DS1 – power indicator ===
221 221  
222 222  |**State**|**Description**
223 223  |**Lights red**|The device is powered
224 224  |**Off**|The device is not powered
225 225  
226 -=== DS2 – operation indicator ===
171 +=== 2.4.2 DS2 – operation indicator ===
227 227  
228 228  |**State**|**Description**
229 229  |**Blinking green**|The BMS firmware is running
230 230  |**Off**|The BMS firmware is not running
231 231  
232 -=== DS3 – communication indicator ===
177 +=== 2.4.3 DS3 – communication indicator ===
233 233  
234 234  |**State**|**Description**
235 235  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
236 236  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
237 237  
238 -=== DS4 – error indicator ===
183 +=== 2.4.4 DS4 – error indicator ===
239 239  
240 240  
241 241  |(**State**|**Description**
242 242  |(**Blinking red**|Errors in communication with BMS Logic
243 243  
244 -=== DS7 – relay 1 indicator ===
189 +=== 2.4.5 DS7 – relay 1 indicator ===
245 245  
246 246  |**State**|**Description**
247 247  |**Lights green**|Relay #1 is closed
248 248  |**Off**|Relay #1 is opened
249 249  
250 -=== DS8 – relay 2 indicator ===
195 +=== 2.4.6 DS8 – relay 2 indicator ===
251 251  
252 252  |**State**|**Description**
253 253  |**Lights green**|Relay #2 is closed
254 254  |**Off**|Relay #2 is opened
255 255  
256 -=== DS5 – relay 3 indicator ===
201 +=== 2.4.7 DS5 – relay 3 indicator ===
257 257  
258 258  |**State**|**Description**
259 259  |**Lights green**|Relay #3 is closed
260 260  |**Off**|Relay #3 is opened
261 261  
262 -=== DS6 – relay 4 indicator ===
207 +=== 2.4.8 DS6 – relay 4 indicator ===
263 263  
264 264  |**State**|**Description**
265 265  |**Lights green**|Relay #4 is closed
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