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Last modified by Admin on 2025/07/15 17:33
From version 21.3
edited by Admin
on 2024/11/19 07:56
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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 -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  
52 -(% style="width:531px" %)
53 -|(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
54 -|(% style="width:77px" %)**1**|(% style="width:92px" %)**+5V**|(% style="width:359px" %)Supply voltage 5 V, max 50 mA
55 -|(% style="width:77px" %)**2**|(% style="width:92px" %)**GND**|(% style="width:359px" %)Ground
56 -|(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
57 -|(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
91 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
58 58  
93 +|**Pin**|**Name**|**Description**
94 +|**1**|**+5V**|Supply voltage 5 V, max 50 mA
95 +|**2**|**GND**|Ground
96 +|**3**|**Vhs**|ADC input (humidity sensor output)
97 +|**4**|**Vts**|ADC input (temperature sensor output)
98 +
59 59  === P8 – header of relay 1 ===
60 60  
61 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
101 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
62 62  
103 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
104 +
63 63  By default, relay 1 is used to control the discharging contactor.
64 64  
65 -(% style="width:527px" %)
66 -|(% style="width:82px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:351px" %)**Description**
67 -|(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
68 -|(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
107 +|**Pin**|**Name**|**Description**
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
109 +|**2**|**NO**|Normally open contact
69 69  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
70 70  === P9 – header of relay 2 ===
71 71  
72 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
117 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
73 73  
119 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
120 +
74 74  By default, relay 2 is used to output the “Allow charging” signal.
75 75  
76 -(% style="width:524px" %)
77 -|(% style="width:89px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:341px" %)**Description**
78 -|(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
79 -|(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
123 +|**Pin**|**Name**|**Description**
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
125 +|**2**|**NO**|Normally open contact
80 80  
127 +Contactor connection example: see relay 1.
128 +
81 81  === P6 – header of relay 3 ===
82 82  
83 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
131 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
84 84  
133 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
134 +
85 85  By default, relay 3 is used to control the charging contactor.
86 86  
87 -(% style="width:524px" %)
88 -|(% style="width:101px" %)**Pin**|(% style="width:88px" %)**Name**|(% style="width:332px" %)**Description**
89 -|(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
90 -|(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
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)
140 +|**2**|**NO**|Normally open contact
91 91  
142 +Contactor connection example: see relay 1.
143 +
92 92  === P7 – header of relay 4 ===
93 93  
94 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
146 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
95 95  
148 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
149 +
96 96  By default, relay 4 is used to control the heater.
97 97  
98 -(% style="width:530px" %)
99 -|(% style="width:102px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:332px" %)**Description**
100 -|(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
101 -|(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)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
102 102  
157 +Contactor connection example: see relay 1.
158 +
103 103  === P14 – header for CAN and RS-485 interfaces ===
104 104  
105 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
161 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
106 106  
163 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
164 +
107 107  (% style="width:641px" %)
108 -|(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
109 -|(% style="width:107px" %)**1**|(% style="width:127px" %)**EXT_RS485_A**|(% style="width:404px" %)RS-485 line A for communication with external equipment
110 -|(% style="width:107px" %)**2**|(% style="width:127px" %)**CAN_H**|(% style="width:404px" %)CAN H line for communication with external equipment
111 -|(% style="width:107px" %)**3**|(% style="width:127px" %)**+5V_CAN**|(% style="width:404px" %)Supply voltage 5V for external devices, max 200 mA
112 -|(% style="width:107px" %)**4**|(% style="width:127px" %)**EXT_RS485_B**|(% style="width:404px" %)RS-485 line B for communication with external equipment
113 -|(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
114 -|(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
166 +|**Pin**|**Name**|**Description**
167 +|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
168 +|**2**|**CAN_H**|CAN H line for communication with external equipment
169 +|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
170 +|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
171 +|**5**|**CAN_L**|CAN L line for communication with external equipment
172 +|**6**|**GND_CAN**|Ground
115 115  
116 116  === P21 – CAN termination resistor jumper ===
117 117  
118 -[[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"]]
119 119  
120 120  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
121 121  
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125 125  
126 126  === P22 - RS-485 termination resistor jumper ===
127 127  
128 -[[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"]]
129 129  
130 130  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
131 131  
132 -|**Pin**|(% style="width:108px" %)**Name**|(% style="width:1296px" %)**Description**
133 -|**1-2**|(% style="width:108px" %)**120 Ohm**|(% style="width:1296px" %)Terminating resistor 120 Ohm is connected
134 -|**2-3**|(% style="width:108px" %)**-**|(% style="width:1296px" %)Terminating resistor 120 Ohm is not connected
190 +|**Pin**|**Name**|**Description**
191 +|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
192 +|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
135 135  
136 136  === P11 – header for discrete inputs/outputs ===
137 137  
138 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
196 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
139 139  
198 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
199 +
140 140  |**Pin**|**Name**|**Description**
141 141  |**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
142 142  |**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
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155 155  |**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
156 156  |**1**|**GND_OUT_1**|Discrete output #1 (ground)
157 157  
158 -= Indicators =
218 +== Indicators ==
159 159  
160 160  === DS1 – power indicator ===
161 161  
... ... @@ -177,9 +177,10 @@
177 177  
178 178  === DS4 – error indicator ===
179 179  
180 -|**State**|**Description**
181 -|**Blinking red**|Errors in communication with BMS Logic
182 182  
241 +|(**State**|**Description**
242 +|(**Blinking red**|Errors in communication with BMS Logic
243 +
183 183  === DS7 – relay 1 indicator ===
184 184  
185 185  |**State**|**Description**
... ... @@ -188,7 +188,6 @@
188 188  
189 189  === DS8 – relay 2 indicator ===
190 190  
191 -
192 192  |**State**|**Description**
193 193  |**Lights green**|Relay #2 is closed
194 194  |**Off**|Relay #2 is opened
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