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Last modified by Admin on 2025/07/15 17:33
From version 19.1
edited by Admin
on 2024/11/13 17:26
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To version 21.2
edited by Admin
on 2024/11/19 07:55
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Summary

Details

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Title
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1 -2. Connection
1 +2. Connection procedure
Parent
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1 -Additional modules.BMS Main 2\.1.WebHome
1 +Controllers.BMS Main 2\.1.WebHome
Content
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1 -= ​​​​Headers =
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 +1. Connect the charging and discharging contactors to the P6-P9 headers.
4 +1. Connect a current sensor to the P12 header according to its documentation. The positive current direction (indicated by an arrow on the sensor) corresponds to the battery charging. It is recommended to use a shielded cable to connect the current sensor, the shield should be grounded on the side of the current sensor. The cable should be positioned as far as possible from the high current circuits. If the current sensor has a reference voltage line, connect it to pin 4 of the P12 header.
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 +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 +
8 += ​​​​Headers description =
9 +
3 3  The BMS Main 2.1 headers are shown in figure below.
4 4  
5 5  [[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
6 6  
14 +(% class="wikigeneratedid" %)
15 +Following chapters describes the BMS Main 2.1 headers pinout.
16 +
7 7  === P1 – header for power supply ===
8 8  
9 9  [[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
10 10  
11 -|**Pin**|**Name**|**Description**
12 -|**1**|**GND**|Ground
13 -|**2**|**V+**|Supply voltage 9-30V
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
14 14  
15 15  === P15 – header for BMS Logic ===
16 16  
17 17  [[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
18 18  
19 -|**Pin**|**Name**|**Description**
20 -|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
21 -|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
22 -|**3**|**+5V**|Supply voltage for BMS Logic
23 -|**4**|**GND**|Ground
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
24 24  
25 25  === P12 – header for current sensor ===
26 26  
27 27  [[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
28 28  
29 -|**Pin**|**Name**|**Description**
30 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
31 -|**2**|**GND**|Ground
32 -|**3**|**Vcs**|ADC input (current sensor output)
33 -|**4**|**Vref**|ADC input (current sensor reference signal)
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)
34 34  
35 35  === P13 – header for humidity sensor ===
36 36  
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78 78  
79 79  By default, relay 4 is used to control the heater.
80 80  
81 -**Pin**|**Name**|**Description**
82 -**1**|**V+**|Switching voltage (up to 55V, max 8A)
83 -**2**|**NO**|Normally open contact
94 +|**Pin**|**Name**|**Description**
95 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
96 +|**2**|**NO**|Normally open contact
84 84  
85 85  === P14 – header for CAN and RS-485 interfaces ===
86 86  
... ... @@ -170,9 +170,9 @@
170 170  === DS8 – relay 2 indicator ===
171 171  
172 172  
173 -|**State**|(% style="width:183px" %)**Description**
174 -|**Lights green**|(% style="width:183px" %)Relay #2 is closed
175 -|**Off**|(% style="width:183px" %)Relay #2 is opened
186 +|**State**|**Description**
187 +|**Lights green**|Relay #2 is closed
188 +|**Off**|Relay #2 is opened
176 176  
177 177  === DS5 – relay 3 indicator ===
178 178