Changes for page 2. Installation and connection

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Page properties

Title

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1		-2. Installation and connection
	1	+2. Connection

Parent

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1		-drafts.BMS Main 2\.1.WebHome
	1	+Additional modules.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 =
	1	+= ​​​​Headers =
3	3
4		-== Installation procedure ==
5		-
6		-Overall and mounting dimensions of the BMS Main 2.1 are shown below.
7		-
8		-[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
9		-
10		-|**Parameter**|**Value**
11		-|Overall dimensions (length × width × height), mm|120 × 120 × 32
12		-|Mounting dimensions (length × width), mm|114 × 114
13		-|Mounting holes|M3
14		-
15		-== Connection procedure ==
16		-
17		-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.
18		-
19		-1. Connect the charging and discharging contactors to the P6-P9 headers.
20		-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.
21		-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.
22		-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.
23		-
24		-== ​​​​Headers description ==
25		-
26	26	The BMS Main 2.1 headers are shown in figure below.
27	27
28		-[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
	5	+[[The BMS Main 2.1 headers>>image:1731517946345-632.png||height="417" width="451"]]
29	29
30		-(% class="box warningmessage" %)
31		-(((
32		-**Attention!**
33		-All headers are shown from the device side!
34		-)))
35		-
36	36	=== P1 – header for power supply ===
37	37
38		-[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
	9	+[[image:1731516593096-166.png||data-xwiki-image-style-alignment="center"]]
39	39
40	40	|**Pin**|**Name**|**Description**
41	41	|**1**|**GND**|Ground
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43	43
44	44	=== P15 – header for BMS Logic ===
45	45
46		-[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
	17	+[[image:1731516577472-301.png||data-xwiki-image-style-alignment="center"]]
47	47
48	48	|**Pin**|**Name**|**Description**
49	49	|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
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53	53
54	54	=== P12 – header for current sensor ===
55	55
56		-[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
	27	+[[image:1731516685999-633.png||data-xwiki-image-style-alignment="center"]]
57	57
58	58	|**Pin**|**Name**|**Description**
59	59	|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
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63	63
64	64	=== P13 – header for humidity sensor ===
65	65
66		-[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
	37	+[[image:1731516942455-641.png||data-xwiki-image-style-alignment="center"]]
67	67
68	68	|**Pin**|**Name**|**Description**
69	69	|**1**|**+5V**|Supply voltage 5 V, max 50 mA
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73	73
74	74	=== P8 – header of relay 1 ===
75	75
76		-[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
	47	+[[image:1731517023208-641.png||data-xwiki-image-style-alignment="center"]]
77	77
78	78	By default, relay 1 is used to control the discharging contactor.
79	79
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83	83
84	84	=== P9 – header of relay 2 ===
85	85
86		-[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
	57	+[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
87	87
88	88	By default, relay 2 is used to output the “Allow charging” signal.
89	89
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93	93
94	94	=== P6 – header of relay 3 ===
95	95
96		-[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
	67	+[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
97	97
98	98	By default, relay 3 is used to control the charging contactor.
99	99
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103	103
104	104	=== P7 – header of relay 4 ===
105	105
106		-[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
	77	+[[image:1731517025702-799.png||data-xwiki-image-style-alignment="center"]]
107	107
108	108	By default, relay 4 is used to control the heater.
109	109
110		-|**Pin**|**Name**|**Description**
111		-|**1**|**V+**|Switching voltage (up to 55V, max 8A)
112		-|**2**|**NO**|Normally open contact
	81	+**Pin**|**Name**|**Description**
	82	+**1**|**V+**|Switching voltage (up to 55V, max 8A)
	83	+**2**|**NO**|Normally open contact
113	113
114	114	=== P14 – header for CAN and RS-485 interfaces ===
115	115
116		-[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
	87	+[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center"]]
117	117
118		-(% style="width:641px" %)
119	119	|**Pin**|**Name**|**Description**
120	120	|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
121	121	|**2**|**CAN_H**|CAN H line for communication with external equipment
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126	126
127	127	=== P21 – CAN termination resistor jumper ===
128	128
129		-[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
	99	+[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center"]]
130	130
131	131	To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
132	132
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136	136
137	137	=== P22 - RS-485 termination resistor jumper ===
138	138
139		-[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
	109	+[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center"]]
140	140
141	141	To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
142	142
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146	146
147	147	=== P11 – header for discrete inputs/outputs ===
148	148
149		-[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
	119	+[[image:1731517206246-979.png||data-xwiki-image-style-alignment="center"]]
150	150
151	151	|**Pin**|**Name**|**Description**
152	152	|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
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166	166	|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
167	167	|**1**|**GND_OUT_1**|Discrete output #1 (ground)
168	168
169		-== Indicators ==
	139	+= Indicators =
170	170
171	171	=== DS1 – power indicator ===
172	172
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188	188
189	189	=== DS4 – error indicator ===
190	190
	161	+|**State**|**Description**
	162	+|**Blinking red**|Errors in communication with BMS Logic
191	191
192		-|(**State**|**Description**
193		-|(**Blinking red**|Errors in communication with BMS Logic
194		-
195	195	=== DS7 – relay 1 indicator ===
196	196
197	197	|**State**|**Description**
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200	200
201	201	=== DS8 – relay 2 indicator ===
202	202
	172	+
203	203	|**State**|**Description**
204	204	|**Lights green**|Relay #2 is closed
205	205	|**Off**|Relay #2 is opened

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