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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
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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 -== 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 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 19  
20 20  1. Connect the charging and discharging contactors to the P6-P9 headers.
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22 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 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 24  
25 -== ​​​​Headers description ==
8 += ​​​​Headers description =
26 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"]]
12 +[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
30 30  
31 -(% class="box warningmessage" %)
32 -(((
33 -**Attention!**
34 -All headers are shown from the device side!
35 -)))
14 +(% class="wikigeneratedid" %)
15 +Following chapters describes the BMS Main 2.1 headers pinout.
36 36  
37 37  === P1 – header for power supply ===
38 38  
39 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
19 +[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
40 40  
41 -[[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
42 42  
43 -|**Pin**|**Name**|**Description**
44 -|**1**|**GND**|Ground
45 -|**2**|**V+**|Supply voltage 9-30V
46 -
47 47  === P15 – header for BMS Logic ===
48 48  
49 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
28 +[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
50 50  
51 -[[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
52 52  
53 -|**Pin**|**Name**|**Description**
54 -|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
55 -|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
56 -|**3**|**+5V**|Supply voltage for BMS Logic
57 -|**4**|**GND**|Ground
58 -
59 59  === P12 – header for current sensor ===
60 60  
61 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
39 +[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
62 62  
63 -[[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)
64 64  
65 -|**Pin**|**Name**|**Description**
66 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
67 -|**2**|**GND**|Ground
68 -|**3**|**Vcs**|ADC input (current sensor output)
69 -|**4**|**Vref**|ADC input (current sensor reference signal)
70 -
71 71  === P13 – header for humidity sensor ===
72 72  
73 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
50 +[[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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82 82  
83 83  === P8 – header of relay 1 ===
84 84  
85 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
60 +[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
86 86  
87 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
88 -
89 89  By default, relay 1 is used to control the discharging contactor.
90 90  
91 91  |**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
65 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor connection example:
96 -
97 -[[image:1741619700532-367.png||height="184" width="246"]]
98 -
99 99  === P9 – header of relay 2 ===
100 100  
101 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
70 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
102 102  
103 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 -
105 105  By default, relay 2 is used to output the “Allow charging” signal.
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  
111 111  === P6 – header of relay 3 ===
112 112  
113 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
80 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
114 114  
115 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
116 -
117 117  By default, relay 3 is used to control the charging contactor.
118 118  
119 119  |**Pin**|**Name**|**Description**
120 -|**1**|**V+**|Switching voltage up to 55V,
121 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
85 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
122 122  |**2**|**NO**|Normally open contact
123 123  
124 124  === P7 – header of relay 4 ===
125 125  
126 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
90 +[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
127 127  
128 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
129 -
130 130  By default, relay 4 is used to control the heater.
131 131  
132 132  |**Pin**|**Name**|**Description**
133 -|**1**|**V+**|Switching voltage up to 55V,
134 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
135 135  |**2**|**NO**|Normally open contact
136 136  
137 137  === P14 – header for CAN and RS-485 interfaces ===
138 138  
139 -Receptacle Housing: Molex 430250600. Terminals: Molex 43030
100 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
140 140  
141 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
142 -
143 -(% style="width:641px" %)
144 144  |**Pin**|**Name**|**Description**
145 145  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
146 146  |**2**|**CAN_H**|CAN H line for communication with external equipment
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151 151  
152 152  === P21 – CAN termination resistor jumper ===
153 153  
154 -[[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"]]
155 155  
156 156  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
157 157  
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161 161  
162 162  === P22 - RS-485 termination resistor jumper ===
163 163  
164 -[[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"]]
165 165  
166 166  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
167 167  
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171 171  
172 172  === P11 – header for discrete inputs/outputs ===
173 173  
174 -Receptacle Housing: Molex 430251600. Terminals: Molex 43030
132 +[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
175 175  
176 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
177 -
178 178  |**Pin**|**Name**|**Description**
179 179  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
180 180  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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193 193  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
194 194  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
195 195  
196 -== Indicators ==
152 += Indicators =
197 197  
198 198  === DS1 – power indicator ===
199 199  
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215 215  
216 216  === DS4 – error indicator ===
217 217  
174 +|**State**|**Description**
175 +|**Blinking red**|Errors in communication with BMS Logic
218 218  
219 -|(**State**|**Description**
220 -|(**Blinking red**|Errors in communication with BMS Logic
221 -
222 222  === DS7 – relay 1 indicator ===
223 223  
224 224  |**State**|**Description**
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227 227  
228 228  === DS8 – relay 2 indicator ===
229 229  
185 +
230 230  |**State**|**Description**
231 231  |**Lights green**|Relay #2 is closed
232 232  |**Off**|Relay #2 is opened
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