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Last modified by Admin on 2025/07/15 17:33
From version 20.3
edited by Admin
on 2024/11/13 17:38
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To version 69.1
edited by Admin
on 2025/07/15 17:31
Change comment: There is no comment for this version

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Title
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1 -2. Connection procedure
1 +2. Installation and connection
Parent
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1 -Controllers.BMS Main 2\.1.WebHome
1 +Battery management systems.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 +(% 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 +Overall and mounting dimensions of the BMS Main 2.1 are shown below.
23 +
24 +[[image:1752600650898-961.png||data-xwiki-image-style-alignment="center" height="546" width="450"]]
25 +
26 +(% style="width:494px" %)
27 +|**Parameter**|(% style="width:178px" %)**Value**
28 +|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 17
29 +|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
30 +|Mounting holes|(% style="width:178px" %)M3
31 +
32 +== Connection procedure ==
33 +
1 1  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.
2 2  
3 3  1. Connect the charging and discharging contactors to the P6-P9 headers.
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5 5  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.
6 6  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.
7 7  
8 -= ​​​​Headers description =
41 +== ​​​​Headers description ==
9 9  
10 10  The BMS Main 2.1 headers are shown in figure below.
11 11  
12 -[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
45 +[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
13 13  
14 -(% class="wikigeneratedid" %)
15 -Folo
47 +(% class="box warningmessage" %)
48 +(((
49 +**Attention!**
50 +All headers are shown from the device side!
51 +)))
16 16  
17 17  === P1 – header for power supply ===
18 18  
19 -[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
55 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
20 20  
57 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
58 +
21 21  |**Pin**|**Name**|**Description**
22 22  |**1**|**GND**|Ground
23 23  |**2**|**V+**|Supply voltage 9-30V
... ... @@ -24,8 +24,10 @@
24 24  
25 25  === P15 – header for BMS Logic ===
26 26  
27 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
65 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
28 28  
67 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
68 +
29 29  |**Pin**|**Name**|**Description**
30 30  |**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
31 31  |**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
... ... @@ -34,8 +34,10 @@
34 34  
35 35  === P12 – header for current sensor ===
36 36  
37 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
77 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
38 38  
79 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
80 +
39 39  |**Pin**|**Name**|**Description**
40 40  |**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
41 41  |**2**|**GND**|Ground
... ... @@ -44,8 +44,10 @@
44 44  
45 45  === P13 – header for humidity sensor ===
46 46  
47 -[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
89 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
48 48  
91 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
92 +
49 49  |**Pin**|**Name**|**Description**
50 50  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
51 51  |**2**|**GND**|Ground
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54 54  
55 55  === P8 – header of relay 1 ===
56 56  
57 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
101 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
58 58  
103 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 +
59 59  By default, relay 1 is used to control the discharging contactor.
60 60  
61 61  |**Pin**|**Name**|**Description**
62 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
63 63  |**2**|**NO**|Normally open contact
64 64  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
65 65  === P9 – header of relay 2 ===
66 66  
67 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
117 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
68 68  
119 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
120 +
69 69  By default, relay 2 is used to output the “Allow charging” signal.
70 70  
71 71  |**Pin**|**Name**|**Description**
72 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
73 73  |**2**|**NO**|Normally open contact
74 74  
127 +Contactor connection example: see relay 1.
128 +
75 75  === P6 – header of relay 3 ===
76 76  
77 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
131 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
78 78  
133 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
134 +
79 79  By default, relay 3 is used to control the charging contactor.
80 80  
81 81  |**Pin**|**Name**|**Description**
82 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
138 +|**1**|**V+**|Switching voltage up to 55V,
139 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
83 83  |**2**|**NO**|Normally open contact
84 84  
142 +Contactor connection example: see relay 1.
143 +
85 85  === P7 – header of relay 4 ===
86 86  
87 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
146 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
88 88  
148 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
149 +
89 89  By default, relay 4 is used to control the heater.
90 90  
91 -**Pin**|**Name**|**Description**
92 -**1**|**V+**|Switching voltage (up to 55V, max 8A)
93 -**2**|**NO**|Normally open contact
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)
155 +|**2**|**NO**|Normally open contact
94 94  
157 +Contactor connection example: see relay 1.
158 +
95 95  === P14 – header for CAN and RS-485 interfaces ===
96 96  
97 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
161 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
98 98  
163 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
164 +
165 +(% style="width:641px" %)
99 99  |**Pin**|**Name**|**Description**
100 100  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
101 101  |**2**|**CAN_H**|CAN H line for communication with external equipment
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106 106  
107 107  === P21 – CAN termination resistor jumper ===
108 108  
109 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
176 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
110 110  
111 111  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
112 112  
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116 116  
117 117  === P22 - RS-485 termination resistor jumper ===
118 118  
119 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
186 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
120 120  
121 121  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
122 122  
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126 126  
127 127  === P11 – header for discrete inputs/outputs ===
128 128  
129 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
196 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
130 130  
198 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
199 +
131 131  |**Pin**|**Name**|**Description**
132 132  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
133 133  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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146 146  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
147 147  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
148 148  
149 -= Indicators =
218 +== Indicators ==
150 150  
151 151  === DS1 – power indicator ===
152 152  
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168 168  
169 169  === DS4 – error indicator ===
170 170  
171 -|**State**|**Description**
172 -|**Blinking red**|Errors in communication with BMS Logic
173 173  
241 +|(**State**|**Description**
242 +|(**Blinking red**|Errors in communication with BMS Logic
243 +
174 174  === DS7 – relay 1 indicator ===
175 175  
176 176  |**State**|**Description**
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179 179  
180 180  === DS8 – relay 2 indicator ===
181 181  
182 -
183 183  |**State**|**Description**
184 184  |**Lights green**|Relay #2 is closed
185 185  |**Off**|Relay #2 is opened
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