Skip to Content
Last modified by Admin on 2025/07/15 17:33
From version 17.1
edited by Admin
on 2024/11/13 17:12
Change comment: Uploaded new attachment "1731517946345-632.png", version {1}
To version 21.1
edited by Admin
on 2024/11/13 17:39
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -2. Connection
1 +2. Connection procedure
Parent
... ... @@ -1,1 +1,1 @@
1 -Additional modules.BMS Main 2\.1.WebHome
1 +Controllers.BMS Main 2\.1.WebHome
Content
... ... @@ -1,46 +1,56 @@
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 -[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||height="430" width="428"]]
12 +[[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 -|(% style="width:100px" %)**Pin**|(% style="width:502px" %)**Name**|**Description**
12 -|(% style="width:100px" %)**1**|(% style="width:502px" %)**GND**|Ground
13 -|(% style="width:100px" %)**2**|(% style="width:502px" %)**V+**|Supply voltage 9-30V
21 +|**Pin**|**Name**|**Description**
22 +|**1**|**GND**|Ground
23 +|**2**|**V+**|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 -|(% style="width:100px" %)**Pin**|(% style="width:290px" %)**Name**|**Description**
20 -|(% style="width:100px" %)**1**|(% style="width:290px" %)**RS485_A**|RS-485 line A for communication with BMS Logic
21 -|(% style="width:100px" %)**2**|(% style="width:290px" %)**RS485_B**|RS-485 line B for communication with BMS Logic
22 -|(% style="width:100px" %)**3**|(% style="width:290px" %)**+5V**|Supply voltage for BMS Logic
23 -|(% style="width:100px" %)**4**|(% style="width:290px" %)**GND**|Ground
29 +|**Pin**|**Name**|**Description**
30 +|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
31 +|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
32 +|**3**|**+5V**|Supply voltage for BMS Logic
33 +|**4**|**GND**|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 -|(% style="width:100px" %)**Pin**|(% style="width:293px" %)**Name**|(% style="width:1129px" %)**Description**
30 -|(% style="width:100px" %)**1**|(% style="width:293px" %)**+5V**|(% style="width:1129px" %)Supply voltage for the current sensor 5V, max 50 mA
31 -|(% style="width:100px" %)**2**|(% style="width:293px" %)**GND**|(% style="width:1129px" %)Ground
32 -|(% style="width:100px" %)**3**|(% style="width:293px" %)**Vcs**|(% style="width:1129px" %)ADC input (current sensor output)
33 -|(% style="width:100px" %)**4**|(% style="width:293px" %)**Vref**|(% style="width:1129px" %)ADC input (current sensor reference signal)
39 +|**Pin**|**Name**|**Description**
40 +|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
41 +|**2**|**GND**|Ground
42 +|**3**|**Vcs**|ADC input (current sensor output)
43 +|**4**|**Vref**|ADC input (current sensor reference signal)
34 34  
35 35  === P13 – header for humidity sensor ===
36 36  
37 37  [[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
38 38  
39 -|(% style="width:100px" %)**Pin**|(% style="width:292px" %)**Name**|(% style="width:1130px" %)**Description**
40 -|(% style="width:100px" %)**1**|(% style="width:292px" %)**+5V**|(% style="width:1130px" %)Supply voltage 5 V, max 50 mA
41 -|(% style="width:100px" %)**2**|(% style="width:292px" %)**GND**|(% style="width:1130px" %)Ground
42 -|(% style="width:100px" %)**3**|(% style="width:292px" %)**Vhs**|(% style="width:1130px" %)ADC input (humidity sensor output)
43 -|(% style="width:100px" %)**4**|(% style="width:292px" %)**Vts**|(% style="width:1130px" %)ADC input (temperature sensor output)
49 +|**Pin**|**Name**|**Description**
50 +|**1**|**+5V**|Supply voltage 5 V, max 50 mA
51 +|**2**|**GND**|Ground
52 +|**3**|**Vhs**|ADC input (humidity sensor output)
53 +|**4**|**Vts**|ADC input (temperature sensor output)
44 44  
45 45  === P8 – header of relay 1 ===
46 46  
... ... @@ -48,9 +48,9 @@
48 48  
49 49  By default, relay 1 is used to control the discharging contactor.
50 50  
51 -|(% style="width:100px" %)**Pin**|(% style="width:291px" %)**Name**|(% style="width:1131px" %)**Description**
52 -|(% style="width:100px" %)**1**|(% style="width:291px" %)**V+**|(% style="width:1131px" %)Switching voltage (up to 55V, max 2A)
53 -|(% style="width:100px" %)**2**|(% style="width:291px" %)**NO**|(% style="width:1131px" %)Normally open contact
61 +|**Pin**|**Name**|**Description**
62 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
63 +|**2**|**NO**|Normally open contact
54 54  
55 55  === P9 – header of relay 2 ===
56 56  
... ... @@ -58,9 +58,9 @@
58 58  
59 59  By default, relay 2 is used to output the “Allow charging” signal.
60 60  
61 -|(% style="width:100px" %)**Pin**|(% style="width:297px" %)**Name**|(% style="width:1125px" %)**Description**
62 -|(% style="width:100px" %)**1**|(% style="width:297px" %)**V+**|(% style="width:1125px" %)Switching voltage (up to 55V, max 2A)
63 -|(% style="width:100px" %)**2**|(% style="width:297px" %)**NO**|(% style="width:1125px" %)Normally open contact
71 +|**Pin**|**Name**|**Description**
72 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
73 +|**2**|**NO**|Normally open contact
64 64  
65 65  === P6 – header of relay 3 ===
66 66  
... ... @@ -68,9 +68,9 @@
68 68  
69 69  By default, relay 3 is used to control the charging contactor.
70 70  
71 -|(% style="width:100px" %)**Pin**|(% style="width:297px" %)**Name**|(% style="width:1125px" %)**Description**
72 -|(% style="width:100px" %)**1**|(% style="width:297px" %)**V+**|(% style="width:1125px" %)Switching voltage (up to 55V, max 8A)
73 -|(% style="width:100px" %)**2**|(% style="width:297px" %)**NO**|(% style="width:1125px" %)Normally open contact
81 +|**Pin**|**Name**|**Description**
82 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
83 +|**2**|**NO**|Normally open contact
74 74  
75 75  === P7 – header of relay 4 ===
76 76  
... ... @@ -78,21 +78,21 @@
78 78  
79 79  By default, relay 4 is used to control the heater.
80 80  
81 -|(% style="width:100px" %)**Pin**|(% style="width:298px" %)**Name**|(% style="width:1124px" %)**Description**
82 -|(% style="width:100px" %)**1**|(% style="width:298px" %)**V+**|(% style="width:1124px" %)Switching voltage (up to 55V, max 8A)
83 -|(% style="width:100px" %)**2**|(% style="width:298px" %)**NO**|(% style="width:1124px" %)Normally open contact
91 +|**Pin**|**Name**|**Description**
92 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
93 +|**2**|**NO**|Normally open contact
84 84  
85 85  === P14 – header for CAN and RS-485 interfaces ===
86 86  
87 87  [[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
88 88  
89 -|(% style="width:100px" %)**Pin**|**Name**|**Description**
90 -|(% style="width:100px" %)**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
91 -|(% style="width:100px" %)**2**|**CAN_H**|CAN H line for communication with external equipment
92 -|(% style="width:100px" %)**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
93 -|(% style="width:100px" %)**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
94 -|(% style="width:100px" %)**5**|**CAN_L**|CAN L line for communication with external equipment
95 -|(% style="width:100px" %)**6**|**GND_CAN**|Ground
99 +|**Pin**|**Name**|**Description**
100 +|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
101 +|**2**|**CAN_H**|CAN H line for communication with external equipment
102 +|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
103 +|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
104 +|**5**|**CAN_L**|CAN L line for communication with external equipment
105 +|**6**|**GND_CAN**|Ground
96 96  
97 97  === P21 – CAN termination resistor jumper ===
98 98  
... ... @@ -100,9 +100,9 @@
100 100  
101 101  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
102 102  
103 -|(% style="width:100px" %)**Pin**|(% style="width:299px" %)**Name**|(% style="width:1123px" %)**Description**
104 -|(% style="width:100px" %)**1-2**|(% style="width:299px" %)**120 Ohm**|(% style="width:1123px" %)Termination resistor 120 Ohm is connected
105 -|(% style="width:100px" %)**2-3**|(% style="width:299px" %)**-**|(% style="width:1123px" %)Termination resistor 120 Ohm is not connected
113 +|**Pin**|**Name**|**Description**
114 +|**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
115 +|**2-3**|**-**|Termination resistor 120 Ohm is not connected
106 106  
107 107  === P22 - RS-485 termination resistor jumper ===
108 108  
... ... @@ -110,79 +110,80 @@
110 110  
111 111  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
112 112  
113 -|(% style="width:100px" %)**Pin**|(% style="width:301px" %)**Name**|(% style="width:1121px" %)**Description**
114 -|(% style="width:100px" %)**1-2**|(% style="width:301px" %)**120 Ohm**|(% style="width:1121px" %)Terminating resistor 120 Ohm is connected
115 -|(% style="width:100px" %)**2-3**|(% style="width:301px" %)**-**|(% style="width:1121px" %)Terminating resistor 120 Ohm is not connected
123 +|**Pin**|**Name**|**Description**
124 +|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
125 +|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
116 116  
117 117  === P11 – header for discrete inputs/outputs ===
118 118  
119 119  [[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
120 120  
121 -|(% style="width:100px" %)**Pin**|(% style="width:310px" %)**Name**|(% style="width:1112px" %)**Description**
122 -|(% style="width:100px" %)**16**|(% style="width:310px" %)**IN_1**|(% style="width:1112px" %)Discrete input #1 “dry contact” (+5V)
123 -|(% style="width:100px" %)**8**|(% style="width:310px" %)**GND_1**|(% style="width:1112px" %)Discrete input #1 “dry contact” (ground)
124 -|(% style="width:100px" %)**15**|(% style="width:310px" %)**IN_2**|(% style="width:1112px" %)Discrete input #2 “dry contact” (+5V)
125 -|(% style="width:100px" %)**7**|(% style="width:310px" %)**GND_2**|(% style="width:1112px" %)Discrete input #2 “dry contact” (ground)
126 -|(% style="width:100px" %)**14**|(% style="width:310px" %)**IN_3**|(% style="width:1112px" %)Discrete input #3 “dry contact” (+5V)
127 -|(% style="width:100px" %)**6**|(% style="width:310px" %)**GND_3**|(% style="width:1112px" %)Discrete input #3 “dry contact” (ground)
128 -|(% style="width:100px" %)**13**|(% style="width:310px" %)**IN_4**|(% style="width:1112px" %)Discrete input #4 “dry contact” (+5V)
129 -|(% style="width:100px" %)**5**|(% style="width:310px" %)**GND_4**|(% style="width:1112px" %)Discrete input #4 “dry contact” (ground)
130 -|(% style="width:100px" %)**12**|(% style="width:310px" %)**OUT_4**|(% style="width:1112px" %)Discrete output #4 (+5V, 20mA)
131 -|(% style="width:100px" %)**4**|(% style="width:310px" %)**GND_OUT_4**|(% style="width:1112px" %)Discrete output #4 (ground)
132 -|(% style="width:100px" %)**11**|(% style="width:310px" %)**OUT_3**|(% style="width:1112px" %)Discrete output #3 (+5V, 20mA)
133 -|(% style="width:100px" %)**3**|(% style="width:310px" %)**GND_OUT_3**|(% style="width:1112px" %)Discrete output #3 (ground)
134 -|(% style="width:100px" %)**10**|(% style="width:310px" %)**OUT_2**|(% style="width:1112px" %)Discrete output #2 (+5V, 20mA)
135 -|(% style="width:100px" %)**2**|(% style="width:310px" %)**GND_OUT_2**|(% style="width:1112px" %)Discrete output #2 (ground)
136 -|(% style="width:100px" %)**9**|(% style="width:310px" %)**OUT_1**|(% style="width:1112px" %)Discrete output #1 (+5V, 20mA)
137 -|(% style="width:100px" %)**1**|(% style="width:310px" %)**GND_OUT_1**|(% style="width:1112px" %)Discrete output #1 (ground)
131 +|**Pin**|**Name**|**Description**
132 +|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
133 +|**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
134 +|**15**|**IN_2**|Discrete input #2 “dry contact” (+5V)
135 +|**7**|**GND_2**|Discrete input #2 “dry contact” (ground)
136 +|**14**|**IN_3**|Discrete input #3 “dry contact” (+5V)
137 +|**6**|**GND_3**|Discrete input #3 “dry contact” (ground)
138 +|**13**|**IN_4**|Discrete input #4 “dry contact” (+5V)
139 +|**5**|**GND_4**|Discrete input #4 “dry contact” (ground)
140 +|**12**|**OUT_4**|Discrete output #4 (+5V, 20mA)
141 +|**4**|**GND_OUT_4**|Discrete output #4 (ground)
142 +|**11**|**OUT_3**|Discrete output #3 (+5V, 20mA)
143 +|**3**|**GND_OUT_3**|Discrete output #3 (ground)
144 +|**10**|**OUT_2**|Discrete output #2 (+5V, 20mA)
145 +|**2**|**GND_OUT_2**|Discrete output #2 (ground)
146 +|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
147 +|**1**|**GND_OUT_1**|Discrete output #1 (ground)
138 138  
139 139  = Indicators =
140 140  
141 141  === DS1 – power indicator ===
142 142  
143 -|(% style="width:100px" %)**State**|**Description**
144 -|(% style="width:100px" %)**Lights red**|The device is powered
145 -|(% style="width:100px" %)**Off**|The device is not powered
153 +|**State**|**Description**
154 +|**Lights red**|The device is powered
155 +|**Off**|The device is not powered
146 146  
147 147  === DS2 – operation indicator ===
148 148  
149 -|(% style="width:100px" %)**State**|**Description**
150 -|(% style="width:100px" %)**Blinking green**|The BMS firmware is running
151 -|(% style="width:100px" %)**Off**|The BMS firmware is not running
159 +|**State**|**Description**
160 +|**Blinking green**|The BMS firmware is running
161 +|**Off**|The BMS firmware is not running
152 152  
153 153  === DS3 – communication indicator ===
154 154  
155 -|(% style="width:100px" %)**State**|**Description**
156 -|(% style="width:100px" %)**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
157 -|(% style="width:100px" %)**Blinking yellow (25Hz)**|Communication with BMS Logic is established
165 +|**State**|**Description**
166 +|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
167 +|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
158 158  
159 159  === DS4 – error indicator ===
160 160  
161 -|(% style="width:100px" %)**State**|**Description**
162 -|(% style="width:100px" %)**Blinking red**|Errors in communication with BMS Logic
171 +|**State**|**Description**
172 +|**Blinking red**|Errors in communication with BMS Logic
163 163  
164 164  === DS7 – relay 1 indicator ===
165 165  
166 -|(% style="width:100px" %)**State**|**Description**
167 -|(% style="width:100px" %)**Lights green**|Relay #1 is closed
168 -|(% style="width:100px" %)**Off**|Relay #1 is opened
176 +|**State**|**Description**
177 +|**Lights green**|Relay #1 is closed
178 +|**Off**|Relay #1 is opened
169 169  
170 170  === DS8 – relay 2 indicator ===
171 171  
172 -|(% style="width:100px" %)**State**|**Description**
173 -|(% style="width:100px" %)**Lights green**|Relay #2 is closed
174 -|(% style="width:100px" %)**Off**|Relay #2 is opened
175 175  
183 +|**State**|**Description**
184 +|**Lights green**|Relay #2 is closed
185 +|**Off**|Relay #2 is opened
186 +
176 176  === DS5 – relay 3 indicator ===
177 177  
178 -|(% style="width:100px" %)**State**|**Description**
179 -|(% style="width:100px" %)**Lights green**|Relay #3 is closed
180 -|(% style="width:100px" %)**Off**|Relay #3 is opened
189 +|**State**|**Description**
190 +|**Lights green**|Relay #3 is closed
191 +|**Off**|Relay #3 is opened
181 181  
182 182  === DS6 – relay 4 indicator ===
183 183  
184 -|(% style="width:100px" %)**State**|**Description**
185 -|(% style="width:100px" %)**Lights green**|Relay #4 is closed
186 -|(% style="width:100px" %)**Off**|Relay #4 is opened
195 +|**State**|**Description**
196 +|**Lights green**|Relay #4 is closed
197 +|**Off**|Relay #4 is opened
187 187  
188 188