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Last modified by Admin on 2025/07/15 17:33
From version 21.2
edited by Admin
on 2024/11/19 07:55
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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
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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 -Following chapters describes the BMS Main 2.1 headers pinout.
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  
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
57 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
25 25  
59 +|**Pin**|**Name**|**Description**
60 +|**1**|**GND**|Ground
61 +|**2**|**V+**|Supply voltage 9-30V
62 +
26 26  === P15 – header for BMS Logic ===
27 27  
28 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
65 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
29 29  
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
67 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
36 36  
69 +|**Pin**|**Name**|**Description**
70 +|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
71 +|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
72 +|**3**|**+5V**|Supply voltage for BMS Logic
73 +|**4**|**GND**|Ground
74 +
37 37  === P12 – header for current sensor ===
38 38  
39 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
77 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
40 40  
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)
79 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
47 47  
81 +|**Pin**|**Name**|**Description**
82 +|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
83 +|**2**|**GND**|Ground
84 +|**3**|**Vcs**|ADC input (current sensor output)
85 +|**4**|**Vref**|ADC input (current sensor reference signal)
86 +
48 48  === P13 – header for humidity sensor ===
49 49  
50 -[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
89 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
51 51  
91 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
92 +
52 52  |**Pin**|**Name**|**Description**
53 53  |**1**|**+5V**|Supply voltage 5 V, max 50 mA
54 54  |**2**|**GND**|Ground
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57 57  
58 58  === P8 – header of relay 1 ===
59 59  
60 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
101 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
61 61  
103 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 +
62 62  By default, relay 1 is used to control the discharging contactor.
63 63  
64 64  |**Pin**|**Name**|**Description**
65 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
66 66  |**2**|**NO**|Normally open contact
67 67  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
68 68  === P9 – header of relay 2 ===
69 69  
70 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
117 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
71 71  
119 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
120 +
72 72  By default, relay 2 is used to output the “Allow charging” signal.
73 73  
74 74  |**Pin**|**Name**|**Description**
75 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
76 76  |**2**|**NO**|Normally open contact
77 77  
127 +Contactor connection example: see relay 1.
128 +
78 78  === P6 – header of relay 3 ===
79 79  
80 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
131 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
81 81  
133 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
134 +
82 82  By default, relay 3 is used to control the charging contactor.
83 83  
84 84  |**Pin**|**Name**|**Description**
85 -|**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)
86 86  |**2**|**NO**|Normally open contact
87 87  
142 +Contactor connection example: see relay 1.
143 +
88 88  === P7 – header of relay 4 ===
89 89  
90 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
146 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
91 91  
148 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
149 +
92 92  By default, relay 4 is used to control the heater.
93 93  
94 94  |**Pin**|**Name**|**Description**
95 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
153 +|**1**|**V+**|Switching voltage up to 55V,
154 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
96 96  |**2**|**NO**|Normally open contact
97 97  
157 +Contactor connection example: see relay 1.
158 +
98 98  === P14 – header for CAN and RS-485 interfaces ===
99 99  
100 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
161 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
101 101  
163 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
164 +
165 +(% style="width:641px" %)
102 102  |**Pin**|**Name**|**Description**
103 103  |**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
104 104  |**2**|**CAN_H**|CAN H line for communication with external equipment
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109 109  
110 110  === P21 – CAN termination resistor jumper ===
111 111  
112 -[[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"]]
113 113  
114 114  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
115 115  
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119 119  
120 120  === P22 - RS-485 termination resistor jumper ===
121 121  
122 -[[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"]]
123 123  
124 124  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
125 125  
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129 129  
130 130  === P11 – header for discrete inputs/outputs ===
131 131  
132 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
196 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
133 133  
198 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
199 +
134 134  |**Pin**|**Name**|**Description**
135 135  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
136 136  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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149 149  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
150 150  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
151 151  
152 -= Indicators =
218 +== Indicators ==
153 153  
154 154  === DS1 – power indicator ===
155 155  
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171 171  
172 172  === DS4 – error indicator ===
173 173  
174 -|**State**|**Description**
175 -|**Blinking red**|Errors in communication with BMS Logic
176 176  
241 +|(**State**|**Description**
242 +|(**Blinking red**|Errors in communication with BMS Logic
243 +
177 177  === DS7 – relay 1 indicator ===
178 178  
179 179  |**State**|**Description**
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182 182  
183 183  === DS8 – relay 2 indicator ===
184 184  
185 -
186 186  |**State**|**Description**
187 187  |**Lights green**|Relay #2 is closed
188 188  |**Off**|Relay #2 is opened
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