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Last modified by Admin on 2025/07/15 17:33
From version 68.1
edited by Admin
on 2025/07/15 17:30
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To version 48.1
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on 2024/12/04 11:27
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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 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 22  Overall and mounting dimensions of the BMS Main 2.1 are shown below.
23 23  
5 +[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
24 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
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
30 30  
31 -== Connection procedure ==
12 +== 2.2 Connection procedure ==
32 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  
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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 ==
21 +== 2.3 ​​​​Headers description ==
41 41  
42 42  The BMS Main 2.1 headers are shown in figure below.
43 43  
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49 49  All headers are shown from the device side!
50 50  )))
51 51  
52 -=== P1 – header for power supply ===
33 +=== 2.3.1 P1 – header for power supply ===
53 53  
54 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
55 -
56 56  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
57 57  
58 58  |**Pin**|**Name**|**Description**
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59 59  |**1**|**GND**|Ground
60 60  |**2**|**V+**|Supply voltage 9-30V
61 61  
62 -=== P15 – header for BMS Logic ===
41 +=== 2.3.2 P15 – header for BMS Logic ===
63 63  
64 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
65 -
66 66  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
67 67  
68 68  |**Pin**|**Name**|**Description**
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71 71  |**3**|**+5V**|Supply voltage for BMS Logic
72 72  |**4**|**GND**|Ground
73 73  
74 -=== P12 – header for current sensor ===
51 +=== 2.3.3 P12 – header for current sensor ===
75 75  
76 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
77 -
78 78  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
79 79  
80 80  |**Pin**|**Name**|**Description**
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83 83  |**3**|**Vcs**|ADC input (current sensor output)
84 84  |**4**|**Vref**|ADC input (current sensor reference signal)
85 85  
86 -=== P13 – header for humidity sensor ===
61 +=== 2.3.4 P13 – header for humidity sensor ===
87 87  
88 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
89 -
90 90  [[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
91 91  
92 92  |**Pin**|**Name**|**Description**
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95 95  |**3**|**Vhs**|ADC input (humidity sensor output)
96 96  |**4**|**Vts**|ADC input (temperature sensor output)
97 97  
98 -=== P8 – header of relay 1 ===
71 +=== 2.3.5 P8 – header of relay 1 ===
99 99  
100 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
101 -
102 102  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
103 103  
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)
78 +|**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:
81 +=== 2.3.6 P9 – header of relay 2 ===
111 111  
112 -[[image:1741619814065-850.png||height="189" width="252"]]
113 -
114 -=== P9 – header of relay 2 ===
115 -
116 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
117 -
118 118  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
119 119  
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)
88 +|**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.
91 +=== 2.3.7 P6 – header of relay 3 ===
127 127  
128 -=== P6 – header of relay 3 ===
129 -
130 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
131 -
132 132  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
133 133  
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)
98 +|**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.
101 +=== 2.3.8 P7 – header of relay 4 ===
142 142  
143 -=== P7 – header of relay 4 ===
144 -
145 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
146 -
147 147  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
148 148  
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)
108 +|**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.
111 +=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
157 157  
158 -=== P14 – header for CAN and RS-485 interfaces ===
159 -
160 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
161 -
162 162  [[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
163 163  
164 164  (% style="width:641px" %)
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170 170  |**5**|**CAN_L**|CAN L line for communication with external equipment
171 171  |**6**|**GND_CAN**|Ground
172 172  
173 -=== P21 – CAN termination resistor jumper ===
124 +=== 2.3.10 P21 – CAN termination resistor jumper ===
174 174  
175 175  [[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
176 176  
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180 180  |**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
181 181  |**2-3**|**-**|Termination resistor 120 Ohm is not connected
182 182  
183 -=== P22 - RS-485 termination resistor jumper ===
134 +=== 2.3.11 P22 - RS-485 termination resistor jumper ===
184 184  
185 185  [[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
186 186  
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190 190  |**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
191 191  |**2-3**|**-**|Terminating resistor 120 Ohm is not connected
192 192  
193 -=== P11 – header for discrete inputs/outputs ===
144 +=== 2.3.12 P11 – header for discrete inputs/outputs ===
194 194  
195 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
196 -
197 197  [[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
198 198  
199 199  |**Pin**|**Name**|**Description**
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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 ==
166 += 2.4 Indicators =
218 218  
219 -=== DS1 – power indicator ===
168 +=== 2.4.1 DS1 – power indicator ===
220 220  
221 221  |**State**|**Description**
222 222  |**Lights red**|The device is powered
223 223  |**Off**|The device is not powered
224 224  
225 -=== DS2 – operation indicator ===
174 +=== 2.4.2 DS2 – operation indicator ===
226 226  
227 227  |**State**|**Description**
228 228  |**Blinking green**|The BMS firmware is running
229 229  |**Off**|The BMS firmware is not running
230 230  
231 -=== DS3 – communication indicator ===
180 +=== 2.4.3 DS3 – communication indicator ===
232 232  
233 233  |**State**|**Description**
234 234  |**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
235 235  |**Blinking yellow (25Hz)**|Communication with BMS Logic is established
236 236  
237 -=== DS4 – error indicator ===
186 +=== 2.4.4 DS4 – error indicator ===
238 238  
239 239  
240 240  |(**State**|**Description**
241 241  |(**Blinking red**|Errors in communication with BMS Logic
242 242  
243 -=== DS7 – relay 1 indicator ===
192 +=== 2.4.5 DS7 – relay 1 indicator ===
244 244  
245 245  |**State**|**Description**
246 246  |**Lights green**|Relay #1 is closed
247 247  |**Off**|Relay #1 is opened
248 248  
249 -=== DS8 – relay 2 indicator ===
198 +=== 2.4.6 DS8 – relay 2 indicator ===
250 250  
251 251  |**State**|**Description**
252 252  |**Lights green**|Relay #2 is closed
253 253  |**Off**|Relay #2 is opened
254 254  
255 -=== DS5 – relay 3 indicator ===
204 +=== 2.4.7 DS5 – relay 3 indicator ===
256 256  
257 257  |**State**|**Description**
258 258  |**Lights green**|Relay #3 is closed
259 259  |**Off**|Relay #3 is opened
260 260  
261 -=== DS6 – relay 4 indicator ===
210 +=== 2.4.8 DS6 – relay 4 indicator ===
262 262  
263 263  |**State**|**Description**
264 264  |**Lights green**|Relay #4 is closed
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