Wiki source code of 2. Installation and connection

Version 49.2 by Admin on 2024/12/11 11:21

version	line-number	content
49.1	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 =
25.4	3
49.1	4	== Installation procedure ==
	5
45.1	6	Overall and mounting dimensions of the BMS Main 2.1 are shown below.
26.2	7
44.1	8	[[image:1732198397369-222.png\|\|data-xwiki-image-style-alignment="center" height="393" width="556"]]
26.2	9
26.3	10	\|Parameter\|Value
46.1	11	\|Overall dimensions (length × width × height), mm\|120 × 120 × 32
26.3	12	\|Mounting dimensions (length × width), mm\|114 × 114
	13	\|Mounting holes\|M3
26.2	14
49.1	15	== Connection procedure ==
26.2	16
20.3	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.
1.2	18
20.3	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
49.1	24	== Headers description ==
20.3	25
1.2	26	The BMS Main 2.1 headers are shown in figure below.
	27
44.1	28	[[image:1731516393377-928.jpeg\|\|alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
1.2	29
48.1	30	(% class="box warningmessage" %)
	31	(((
	32	Attention!
	33	All headers are shown from the device side!
	34	)))
20.3	35
49.1	36	=== P1 – header for power supply ===
2.2	37
47.1	38	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
2.2	39
46.1	40	\|Pin\|Name\|Description
	41	\|1\|GND\|Ground
	42	\|2\|V+\|Supply voltage 9-30V
4.2	43
49.1	44	=== P15 – header for BMS Logic ===
4.2	45
47.1	46	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
4.2	47
46.1	48	\|Pin\|Name\|Description
	49	\|1\|RS485_A\|RS-485 line A for communication with BMS Logic
	50	\|2\|RS485_B\|RS-485 line B for communication with BMS Logic
	51	\|3\|+5V\|Supply voltage for BMS Logic
	52	\|4\|GND\|Ground
44.1	53
49.1	54	=== P12 – header for current sensor ===
5.2	55
47.1	56	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
5.3	57
46.1	58	\|Pin\|Name\|Description
	59	\|1\|+5V\|Supply voltage for the current sensor 5V, max 50 mA
	60	\|2\|GND\|Ground
	61	\|3\|Vcs\|ADC input (current sensor output)
	62	\|4\|Vref\|ADC input (current sensor reference signal)
5.3	63
49.1	64	=== P13 – header for humidity sensor ===
5.3	65
47.1	66	[[image:1732198896526-660.png\|\|data-xwiki-image-style-alignment="center" height="70" width="64"]]
6.2	67
46.1	68	\|Pin\|Name\|Description
	69	\|1\|+5V\|Supply voltage 5 V, max 50 mA
	70	\|2\|GND\|Ground
	71	\|3\|Vhs\|ADC input (humidity sensor output)
	72	\|4\|Vts\|ADC input (temperature sensor output)
6.2	73
49.1	74	=== P8 – header of relay 1 ===
6.2	75
47.1	76	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	77
	78	By default, relay 1 is used to control the discharging contactor.
	79
46.1	80	\|Pin\|Name\|Description
	81	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	82	\|2\|NO\|Normally open contact
6.2	83
49.1	84	=== P9 – header of relay 2 ===
11.2	85
47.1	86	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	87
	88	By default, relay 2 is used to output the “Allow charging” signal.
	89
46.1	90	\|Pin\|Name\|Description
	91	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	92	\|2\|NO\|Normally open contact
6.2	93
49.1	94	=== P6 – header of relay 3 ===
6.2	95
47.1	96	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	97
11.2	98	By default, relay 3 is used to control the charging contactor.
6.2	99
46.1	100	\|Pin\|Name\|Description
	101	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	102	\|2\|NO\|Normally open contact
6.2	103
49.1	104	=== P7 – header of relay 4 ===
6.2	105
47.1	106	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	107
	108	By default, relay 4 is used to control the heater.
	109
46.1	110	\|Pin\|Name\|Description
	111	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	112	\|2\|NO\|Normally open contact
6.2	113
49.1	114	=== P14 – header for CAN and RS-485 interfaces ===
6.2	115
47.1	116	[[image:1731517180930-597.png\|\|data-xwiki-image-style-alignment="center" height="81" width="113"]]
6.2	117
21.3	118	(% style="width:641px" %)
46.1	119	\|Pin\|Name\|Description
	120	\|1\|EXT_RS485_A\|RS-485 line A for communication with external equipment
	121	\|2\|CAN_H\|CAN H line for communication with external equipment
	122	\|3\|+5V_CAN\|Supply voltage 5V for external devices, max 200 mA
	123	\|4\|EXT_RS485_B\|RS-485 line B for communication with external equipment
	124	\|5\|CAN_L\|CAN L line for communication with external equipment
	125	\|6\|GND_CAN\|Ground
11.2	126
49.1	127	=== P21 – CAN termination resistor jumper ===
11.2	128
47.1	129	[[image:1731517188900-976.png\|\|data-xwiki-image-style-alignment="center" height="78" width="149"]]
11.2	130
	131	To connect the termination resistor between the lines CAN_H and CAN_L, install a jumper, according to the P21 pinout:
	132
46.1	133	\|Pin\|Name\|Description
	134	\|1-2\|120 Ohm\|Termination resistor 120 Ohm is connected
	135	\|2-3\|-\|Termination resistor 120 Ohm is not connected
11.2	136
49.1	137	=== P22 - RS-485 termination resistor jumper ===
11.2	138
47.1	139	[[image:1731517195672-298.png\|\|data-xwiki-image-style-alignment="center" height="81" width="155"]]
11.2	140
	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
46.1	143	\|Pin\|Name\|Description
	144	\|1-2\|120 Ohm\|Terminating resistor 120 Ohm is connected
	145	\|2-3\|-\|Terminating resistor 120 Ohm is not connected
11.2	146
49.1	147	=== P11 – header for discrete inputs/outputs ===
11.2	148
47.1	149	[[image:1732198937514-731.png\|\|data-xwiki-image-style-alignment="center" height="85" width="272"]]
11.2	150
46.1	151	\|Pin\|Name\|Description
	152	\|16\|IN_1\|Discrete input #1 “dry contact” (+5V)
	153	\|8\|GND_1\|Discrete input #1 “dry contact” (ground)
	154	\|15\|IN_2\|Discrete input #2 “dry contact” (+5V)
	155	\|7\|GND_2\|Discrete input #2 “dry contact” (ground)
	156	\|14\|IN_3\|Discrete input #3 “dry contact” (+5V)
	157	\|6\|GND_3\|Discrete input #3 “dry contact” (ground)
	158	\|13\|IN_4\|Discrete input #4 “dry contact” (+5V)
	159	\|5\|GND_4\|Discrete input #4 “dry contact” (ground)
	160	\|12\|OUT_4\|Discrete output #4 (+5V, 20mA)
	161	\|4\|GND_OUT_4\|Discrete output #4 (ground)
	162	\|11\|OUT_3\|Discrete output #3 (+5V, 20mA)
	163	\|3\|GND_OUT_3\|Discrete output #3 (ground)
	164	\|10\|OUT_2\|Discrete output #2 (+5V, 20mA)
	165	\|2\|GND_OUT_2\|Discrete output #2 (ground)
	166	\|9\|OUT_1\|Discrete output #1 (+5V, 20mA)
	167	\|1\|GND_OUT_1\|Discrete output #1 (ground)
11.2	168
49.1	169	== Indicators ==
11.2	170
49.1	171	=== DS1 – power indicator ===
13.1	172
46.1	173	\|State\|Description
	174	\|Lights red\|The device is powered
	175	\|Off\|The device is not powered
11.2	176
49.1	177	=== DS2 – operation indicator ===
11.2	178
46.1	179	\|State\|Description
	180	\|Blinking green\|The BMS firmware is running
	181	\|Off\|The BMS firmware is not running
11.2	182
49.1	183	=== DS3 – communication indicator ===
11.2	184
46.1	185	\|State\|Description
	186	\|Blinking yellow (2Hz)\|Initializing communication with BMS Logic boards
	187	\|Blinking yellow (25Hz)\|Communication with BMS Logic is established
11.2	188
49.1	189	=== DS4 – error indicator ===
11.2	190
	191
46.1	192	\|(State\|Description
	193	\|(Blinking red\|Errors in communication with BMS Logic
	194
49.1	195	=== DS7 – relay 1 indicator ===
11.2	196
46.1	197	\|State\|Description
	198	\|Lights green\|Relay #1 is closed
	199	\|Off\|Relay #1 is opened
11.2	200
49.1	201	=== DS8 – relay 2 indicator ===
11.2	202
46.1	203	\|State\|Description
	204	\|Lights green\|Relay #2 is closed
	205	\|Off\|Relay #2 is opened
19.1	206
49.1	207	=== DS5 – relay 3 indicator ===
11.2	208
46.1	209	\|State\|Description
	210	\|Lights green\|Relay #3 is closed
	211	\|Off\|Relay #3 is opened
11.2	212
49.1	213	=== DS6 – relay 4 indicator ===
11.2	214
46.1	215	\|State\|Description
	216	\|Lights green\|Relay #4 is closed
	217	\|Off\|Relay #4 is opened
11.2	218
5.3	219

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