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Title
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1 -2. Connection procedure
1 +2. Connection
Parent
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1 -Controllers.BMS Main 2\.1.WebHome
1 +drafts.bms-main-2-1.WebHome
Content
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1 +== 2.1 Connection procedure ==
2 +
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 =
10 +== 2.2 ​​​​Headers description ==
9 9  
10 10  The BMS Main 2.1 headers are shown in figure below.
11 11  
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14 14  (% class="wikigeneratedid" %)
15 15  Following chapters describes the BMS Main 2.1 headers pinout.
16 16  
17 -=== P1 – header for power supply ===
19 +=== 2.2.1 P1 – header for power supply ===
18 18  
19 -[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
21 +[[image:1731516593096-166.png||height="80" width="42"]]
20 20  
21 21  (% style="width:339px" %)
22 22  |(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
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23 23  |(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
24 24  |(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
25 25  
26 -=== P15 – header for BMS Logic ===
28 +=== 2.2.2 P15 – header for BMS Logic ===
27 27  
28 -[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
30 +[[image:1731516577472-301.png||height="77" width="71"]]
29 29  
30 30  (% style="width:524px" %)
31 31  |(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
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34 34  |(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
35 35  |(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
36 36  
37 -=== P12 – header for current sensor ===
39 +=== 2.2.3 P12 – header for current sensor ===
38 38  
39 -[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
41 +[[image:1731516685999-633.png||height="74" width="68"]]
40 40  
41 41  (% style="width:531px" %)
42 42  |(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
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45 45  |(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
46 46  |(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
47 47  
48 -=== P13 – header for humidity sensor ===
50 +=== 2.2.4 P13 – header for humidity sensor ===
49 49  
50 -[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
52 +[[image:1731516942455-641.png||height="70" width="64"]]
51 51  
52 52  (% style="width:531px" %)
53 53  |(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
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56 56  |(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
57 57  |(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
58 58  
59 -=== P8 – header of relay 1 ===
61 +=== 2.2.5 P8 – header of relay 1 ===
60 60  
61 -[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
63 +[[image:1731517023208-641.png||height="80" width="42"]]
62 62  
63 63  By default, relay 1 is used to control the discharging contactor.
64 64  
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67 67  |(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
68 68  |(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
69 69  
70 -=== P9 – header of relay 2 ===
72 +=== 2.2.6 P9 – header of relay 2 ===
71 71  
72 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
74 +[[image:1731517025702-799.png||height="71" width="37"]]
73 73  
74 74  By default, relay 2 is used to output the “Allow charging” signal.
75 75  
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78 78  |(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
79 79  |(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
80 80  
81 -=== P6 – header of relay 3 ===
83 +=== 2.2.7 P6 – header of relay 3 ===
82 82  
83 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
85 +[[image:1731517025702-799.png||height="67" width="35"]]
84 84  
85 85  By default, relay 3 is used to control the charging contactor.
86 86  
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89 89  |(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
90 90  |(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
91 91  
92 -=== P7 – header of relay 4 ===
94 +=== 2.2.8 P7 – header of relay 4 ===
93 93  
94 -[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
96 +[[image:1731517025702-799.png||height="65" width="34"]]
95 95  
96 96  By default, relay 4 is used to control the heater.
97 97  
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100 100  |(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
101 101  |(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)Normally open contact
102 102  
103 -=== P14 – header for CAN and RS-485 interfaces ===
105 +=== 2.2.9 P14 – header for CAN and RS-485 interfaces ===
104 104  
105 -[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
107 +[[image:1731517180930-597.png||height="81" width="113"]]
106 106  
107 107  (% style="width:641px" %)
108 108  |(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
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113 113  |(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
114 114  |(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
115 115  
116 -=== P21 – CAN termination resistor jumper ===
118 +=== 2.2.10 P21 – CAN termination resistor jumper ===
117 117  
118 -[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
120 +[[image:1731517188900-976.png||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  
122 -|**Pin**|**Name**|**Description**
123 -|**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
124 -|**2-3**|**-**|Termination resistor 120 Ohm is not connected
124 +(% style="width:643px" %)
125 +|**Pin**|(% style="width:122px" %)**Name**|(% style="width:400px" %)**Description**
126 +|**1-2**|(% style="width:122px" %)**120 Ohm**|(% style="width:400px" %)Termination resistor 120 Ohm is connected
127 +|**2-3**|(% style="width:122px" %)**-**|(% style="width:400px" %)Termination resistor 120 Ohm is not connected
125 125  
126 -=== P22 - RS-485 termination resistor jumper ===
129 +=== 2.2.11 P22 - RS-485 termination resistor jumper ===
127 127  
128 -[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
131 +[[image:1731517195672-298.png||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
135 +(% style="width:644px" %)
136 +|**Pin**|(% style="width:121px" %)**Name**|(% style="width:402px" %)**Description**
137 +|**1-2**|(% style="width:121px" %)**120 Ohm**|(% style="width:402px" %)Terminating resistor 120 Ohm is connected
138 +|**2-3**|(% style="width:121px" %)**-**|(% style="width:402px" %)Terminating resistor 120 Ohm is not connected
135 135  
136 -=== P11 – header for discrete inputs/outputs ===
140 +=== 2.2.12 P11 – header for discrete inputs/outputs ===
137 137  
138 -[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
142 +[[image:1731517206246-979.png||height="81" width="258"]]
139 139  
140 -|**Pin**|**Name**|**Description**
141 -|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
142 -|**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
143 -|**15**|**IN_2**|Discrete input #2 “dry contact” (+5V)
144 -|**7**|**GND_2**|Discrete input #2 “dry contact” (ground)
145 -|**14**|**IN_3**|Discrete input #3 “dry contact” (+5V)
146 -|**6**|**GND_3**|Discrete input #3 “dry contact” (ground)
147 -|**13**|**IN_4**|Discrete input #4 “dry contact” (+5V)
148 -|**5**|**GND_4**|Discrete input #4 “dry contact” (ground)
149 -|**12**|**OUT_4**|Discrete output #4 (+5V, 20mA)
150 -|**4**|**GND_OUT_4**|Discrete output #4 (ground)
151 -|**11**|**OUT_3**|Discrete output #3 (+5V, 20mA)
152 -|**3**|**GND_OUT_3**|Discrete output #3 (ground)
153 -|**10**|**OUT_2**|Discrete output #2 (+5V, 20mA)
154 -|**2**|**GND_OUT_2**|Discrete output #2 (ground)
155 -|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
156 -|**1**|**GND_OUT_1**|Discrete output #1 (ground)
144 +(% style="width:584px" %)
145 +|(% style="width:98px" %)**Pin**|(% style="width:157px" %)**Name**|(% style="width:326px" %)**Description**
146 +|(% style="width:98px" %)**16**|(% style="width:157px" %)**IN_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (+5V)
147 +|(% style="width:98px" %)**8**|(% style="width:157px" %)**GND_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (ground)
148 +|(% style="width:98px" %)**15**|(% style="width:157px" %)**IN_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (+5V)
149 +|(% style="width:98px" %)**7**|(% style="width:157px" %)**GND_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (ground)
150 +|(% style="width:98px" %)**14**|(% style="width:157px" %)**IN_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (+5V)
151 +|(% style="width:98px" %)**6**|(% style="width:157px" %)**GND_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (ground)
152 +|(% style="width:98px" %)**13**|(% style="width:157px" %)**IN_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (+5V)
153 +|(% style="width:98px" %)**5**|(% style="width:157px" %)**GND_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (ground)
154 +|(% style="width:98px" %)**12**|(% style="width:157px" %)**OUT_4**|(% style="width:326px" %)Discrete output #4 (+5V, 20mA)
155 +|(% style="width:98px" %)**4**|(% style="width:157px" %)**GND_OUT_4**|(% style="width:326px" %)Discrete output #4 (ground)
156 +|(% style="width:98px" %)**11**|(% style="width:157px" %)**OUT_3**|(% style="width:326px" %)Discrete output #3 (+5V, 20mA)
157 +|(% style="width:98px" %)**3**|(% style="width:157px" %)**GND_OUT_3**|(% style="width:326px" %)Discrete output #3 (ground)
158 +|(% style="width:98px" %)**10**|(% style="width:157px" %)**OUT_2**|(% style="width:326px" %)Discrete output #2 (+5V, 20mA)
159 +|(% style="width:98px" %)**2**|(% style="width:157px" %)**GND_OUT_2**|(% style="width:326px" %)Discrete output #2 (ground)
160 +|(% style="width:98px" %)**9**|(% style="width:157px" %)**OUT_1**|(% style="width:326px" %)Discrete output #1 (+5V, 20mA)
161 +|(% style="width:98px" %)**1**|(% style="width:157px" %)**GND_OUT_1**|(% style="width:326px" %)Discrete output #1 (ground)
157 157  
158 -= Indicators =
163 += 2.3 Indicators =
159 159  
160 -=== DS1 – power indicator ===
165 +=== 2.3.1 DS1 – power indicator ===
161 161  
162 -|**State**|**Description**
163 -|**Lights red**|The device is powered
164 -|**Off**|The device is not powered
167 +(% style="width:442px" %)
168 +|(% style="width:138px" %)**State**|(% style="width:301px" %)**Description**
169 +|(% style="width:138px" %)**Lights red**|(% style="width:301px" %)The device is powered
170 +|(% style="width:138px" %)**Off**|(% style="width:301px" %)The device is not powered
165 165  
166 -=== DS2 – operation indicator ===
172 +=== 2.3.2 DS2 – operation indicator ===
167 167  
168 -|**State**|**Description**
169 -|**Blinking green**|The BMS firmware is running
170 -|**Off**|The BMS firmware is not running
174 +(% style="width:442px" %)
175 +|(% style="width:137px" %)**State**|(% style="width:302px" %)**Description**
176 +|(% style="width:137px" %)**Blinking green**|(% style="width:302px" %)The BMS firmware is running
177 +|(% style="width:137px" %)**Off**|(% style="width:302px" %)The BMS firmware is not running
171 171  
172 -=== DS3 – communication indicator ===
179 +=== 2.3.3 DS3 – communication indicator ===
173 173  
174 -|**State**|**Description**
175 -|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
176 -|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
181 +(% style="width:539px" %)
182 +|(% style="width:175px" %)**State**|(% style="width:361px" %)**Description**
183 +|(% style="width:175px" %)**Blinking yellow (2Hz)**|(% style="width:361px" %)Initializing communication with BMS Logic boards
184 +|(% style="width:175px" %)**Blinking yellow (25Hz)**|(% style="width:361px" %)Communication with BMS Logic is established
177 177  
178 -=== DS4 – error indicator ===
186 +=== 2.3.4 DS4 – error indicator ===
179 179  
180 -|**State**|**Description**
181 -|**Blinking red**|Errors in communication with BMS Logic
188 +(% style="width:539px" %)
189 +|(% style="width:176px" %)**State**|(% style="width:360px" %)**Description**
190 +|(% style="width:176px" %)**Blinking red**|(% style="width:360px" %)Errors in communication with BMS Logic
182 182  
183 -=== DS7 – relay 1 indicator ===
192 +=== 2.3.5 DS7 – relay 1 indicator ===
184 184  
185 -|**State**|**Description**
186 -|**Lights green**|Relay #1 is closed
187 -|**Off**|Relay #1 is opened
194 +(% style="width:541px" %)
195 +|(% style="width:179px" %)**State**|(% style="width:359px" %)**Description**
196 +|(% style="width:179px" %)**Lights green**|(% style="width:359px" %)Relay #1 is closed
197 +|(% style="width:179px" %)**Off**|(% style="width:359px" %)Relay #1 is opened
188 188  
189 -=== DS8 – relay 2 indicator ===
199 +=== 2.3.6 DS8 – relay 2 indicator ===
190 190  
201 +(% style="width:542px" %)
202 +|(% style="width:180px" %)**State**|(% style="width:359px" %)**Description**
203 +|(% style="width:180px" %)**Lights green**|(% style="width:359px" %)Relay #2 is closed
204 +|(% style="width:180px" %)**Off**|(% style="width:359px" %)Relay #2 is opened
191 191  
192 -|**State**|**Description**
193 -|**Lights green**|Relay #2 is closed
194 -|**Off**|Relay #2 is opened
206 +=== 2.3.7 DS5 – relay 3 indicator ===
195 195  
196 -=== DS5 – relay 3 indicator ===
208 +(% style="width:542px" %)
209 +|(% style="width:183px" %)**State**|(% style="width:356px" %)**Description**
210 +|(% style="width:183px" %)**Lights green**|(% style="width:356px" %)Relay #3 is closed
211 +|(% style="width:183px" %)**Off**|(% style="width:356px" %)Relay #3 is opened
197 197  
198 -|**State**|**Description**
199 -|**Lights green**|Relay #3 is closed
200 -|**Off**|Relay #3 is opened
213 +=== 2.3.8 DS6 – relay 4 indicator ===
201 201  
202 -=== DS6 – relay 4 indicator ===
215 +(% style="width:542px" %)
216 +|(% style="width:187px" %)**State**|(% style="width:352px" %)**Description**
217 +|(% style="width:187px" %)**Lights green**|(% style="width:352px" %)Relay #4 is closed
218 +|(% style="width:187px" %)**Off**|(% style="width:352px" %)Relay #4 is opened
203 203  
204 -|**State**|**Description**
205 -|**Lights green**|Relay #4 is closed
206 -|**Off**|Relay #4 is opened
207 -
208 208  
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