Wiki source code of 2. Installation and connection

Version 47.1 by Admin on 2024/12/02 05:49

version	line-number	content
26.2	1	== 2.1 Installation procedure ==
25.4	2
45.1	3	Overall and mounting dimensions of the BMS Main 2.1 are shown below.
26.2	4
44.1	5	[[image:1732198397369-222.png\|\|data-xwiki-image-style-alignment="center" height="393" width="556"]]
26.2	6
26.3	7	\|Parameter\|Value
46.1	8	\|Overall dimensions (length × width × height), mm\|120 × 120 × 32
26.3	9	\|Mounting dimensions (length × width), mm\|114 × 114
	10	\|Mounting holes\|M3
26.2	11
	12	== 2.2 Connection procedure ==
	13
20.3	14	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	15
20.3	16	1. Connect the charging and discharging contactors to the P6-P9 headers.
	17	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.
	18	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.
	19	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.
	20
26.3	21	== 2.3 Headers description ==
20.3	22
1.2	23	The BMS Main 2.1 headers are shown in figure below.
	24
44.1	25	[[image:1731516393377-928.jpeg\|\|alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
1.2	26
20.3	27	(% class="wikigeneratedid" %)
21.1	28	Following chapters describes the BMS Main 2.1 headers pinout.
20.3	29
26.3	30	=== 2.3.1 P1 – header for power supply ===
2.2	31
47.1	32	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
2.2	33
46.1	34	\|Pin\|Name\|Description
	35	\|1\|GND\|Ground
	36	\|2\|V+\|Supply voltage 9-30V
4.2	37
26.3	38	=== 2.3.2 P15 – header for BMS Logic ===
4.2	39
47.1	40	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
4.2	41
46.1	42	\|Pin\|Name\|Description
	43	\|1\|RS485_A\|RS-485 line A for communication with BMS Logic
	44	\|2\|RS485_B\|RS-485 line B for communication with BMS Logic
	45	\|3\|+5V\|Supply voltage for BMS Logic
	46	\|4\|GND\|Ground
44.1	47
26.3	48	=== 2.3.3 P12 – header for current sensor ===
5.2	49
47.1	50	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
5.3	51
46.1	52	\|Pin\|Name\|Description
	53	\|1\|+5V\|Supply voltage for the current sensor 5V, max 50 mA
	54	\|2\|GND\|Ground
	55	\|3\|Vcs\|ADC input (current sensor output)
	56	\|4\|Vref\|ADC input (current sensor reference signal)
5.3	57
26.3	58	=== 2.3.4 P13 – header for humidity sensor ===
5.3	59
47.1	60	[[image:1732198896526-660.png\|\|data-xwiki-image-style-alignment="center" height="70" width="64"]]
6.2	61
46.1	62	\|Pin\|Name\|Description
	63	\|1\|+5V\|Supply voltage 5 V, max 50 mA
	64	\|2\|GND\|Ground
	65	\|3\|Vhs\|ADC input (humidity sensor output)
	66	\|4\|Vts\|ADC input (temperature sensor output)
6.2	67
26.3	68	=== 2.3.5 P8 – header of relay 1 ===
6.2	69
47.1	70	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	71
	72	By default, relay 1 is used to control the discharging contactor.
	73
46.1	74	\|Pin\|Name\|Description
	75	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	76	\|2\|NO\|Normally open contact
6.2	77
26.3	78	=== 2.3.6 P9 – header of relay 2 ===
11.2	79
47.1	80	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	81
	82	By default, relay 2 is used to output the “Allow charging” signal.
	83
46.1	84	\|Pin\|Name\|Description
	85	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	86	\|2\|NO\|Normally open contact
6.2	87
26.3	88	=== 2.3.7 P6 – header of relay 3 ===
6.2	89
47.1	90	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	91
11.2	92	By default, relay 3 is used to control the charging contactor.
6.2	93
46.1	94	\|Pin\|Name\|Description
	95	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	96	\|2\|NO\|Normally open contact
6.2	97
26.3	98	=== 2.3.8 P7 – header of relay 4 ===
6.2	99
47.1	100	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	101
	102	By default, relay 4 is used to control the heater.
	103
46.1	104	\|Pin\|Name\|Description
	105	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	106	\|2\|NO\|Normally open contact
6.2	107
26.3	108	=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
6.2	109
47.1	110	[[image:1731517180930-597.png\|\|data-xwiki-image-style-alignment="center" height="81" width="113"]]
6.2	111
21.3	112	(% style="width:641px" %)
46.1	113	\|Pin\|Name\|Description
	114	\|1\|EXT_RS485_A\|RS-485 line A for communication with external equipment
	115	\|2\|CAN_H\|CAN H line for communication with external equipment
	116	\|3\|+5V_CAN\|Supply voltage 5V for external devices, max 200 mA
	117	\|4\|EXT_RS485_B\|RS-485 line B for communication with external equipment
	118	\|5\|CAN_L\|CAN L line for communication with external equipment
	119	\|6\|GND_CAN\|Ground
11.2	120
26.3	121	=== 2.3.10 P21 – CAN termination resistor jumper ===
11.2	122
47.1	123	[[image:1731517188900-976.png\|\|data-xwiki-image-style-alignment="center" height="78" width="149"]]
11.2	124
	125	To connect the termination resistor between the lines CAN_H and CAN_L, install a jumper, according to the P21 pinout:
	126
46.1	127	\|Pin\|Name\|Description
	128	\|1-2\|120 Ohm\|Termination resistor 120 Ohm is connected
	129	\|2-3\|-\|Termination resistor 120 Ohm is not connected
11.2	130
26.3	131	=== 2.3.11 P22 - RS-485 termination resistor jumper ===
11.2	132
47.1	133	[[image:1731517195672-298.png\|\|data-xwiki-image-style-alignment="center" height="81" width="155"]]
11.2	134
	135	To connect the termination resistor between the EXT_RS485_A and EXT_RS485_B lines, install a jumper according to the P22 pinout:
	136
46.1	137	\|Pin\|Name\|Description
	138	\|1-2\|120 Ohm\|Terminating resistor 120 Ohm is connected
	139	\|2-3\|-\|Terminating resistor 120 Ohm is not connected
11.2	140
26.3	141	=== 2.3.12 P11 – header for discrete inputs/outputs ===
11.2	142
47.1	143	[[image:1732198937514-731.png\|\|data-xwiki-image-style-alignment="center" height="85" width="272"]]
11.2	144
46.1	145	\|Pin\|Name\|Description
	146	\|16\|IN_1\|Discrete input #1 “dry contact” (+5V)
	147	\|8\|GND_1\|Discrete input #1 “dry contact” (ground)
	148	\|15\|IN_2\|Discrete input #2 “dry contact” (+5V)
	149	\|7\|GND_2\|Discrete input #2 “dry contact” (ground)
	150	\|14\|IN_3\|Discrete input #3 “dry contact” (+5V)
	151	\|6\|GND_3\|Discrete input #3 “dry contact” (ground)
	152	\|13\|IN_4\|Discrete input #4 “dry contact” (+5V)
	153	\|5\|GND_4\|Discrete input #4 “dry contact” (ground)
	154	\|12\|OUT_4\|Discrete output #4 (+5V, 20mA)
	155	\|4\|GND_OUT_4\|Discrete output #4 (ground)
	156	\|11\|OUT_3\|Discrete output #3 (+5V, 20mA)
	157	\|3\|GND_OUT_3\|Discrete output #3 (ground)
	158	\|10\|OUT_2\|Discrete output #2 (+5V, 20mA)
	159	\|2\|GND_OUT_2\|Discrete output #2 (ground)
	160	\|9\|OUT_1\|Discrete output #1 (+5V, 20mA)
	161	\|1\|GND_OUT_1\|Discrete output #1 (ground)
11.2	162
26.3	163	= 2.4 Indicators =
11.2	164
26.3	165	=== 2.4.1 DS1 – power indicator ===
13.1	166
46.1	167	\|State\|Description
	168	\|Lights red\|The device is powered
	169	\|Off\|The device is not powered
11.2	170
26.3	171	=== 2.4.2 DS2 – operation indicator ===
11.2	172
46.1	173	\|State\|Description
	174	\|Blinking green\|The BMS firmware is running
	175	\|Off\|The BMS firmware is not running
11.2	176
26.3	177	=== 2.4.3 DS3 – communication indicator ===
11.2	178
46.1	179	\|State\|Description
	180	\|Blinking yellow (2Hz)\|Initializing communication with BMS Logic boards
	181	\|Blinking yellow (25Hz)\|Communication with BMS Logic is established
11.2	182
26.3	183	=== 2.4.4 DS4 – error indicator ===
11.2	184
	185
46.1	186	\|(State\|Description
	187	\|(Blinking red\|Errors in communication with BMS Logic
	188
26.3	189	=== 2.4.5 DS7 – relay 1 indicator ===
11.2	190
46.1	191	\|State\|Description
	192	\|Lights green\|Relay #1 is closed
	193	\|Off\|Relay #1 is opened
11.2	194
26.3	195	=== 2.4.6 DS8 – relay 2 indicator ===
11.2	196
46.1	197	\|State\|Description
	198	\|Lights green\|Relay #2 is closed
	199	\|Off\|Relay #2 is opened
19.1	200
26.3	201	=== 2.4.7 DS5 – relay 3 indicator ===
11.2	202
46.1	203	\|State\|Description
	204	\|Lights green\|Relay #3 is closed
	205	\|Off\|Relay #3 is opened
11.2	206
26.3	207	=== 2.4.8 DS6 – relay 4 indicator ===
11.2	208
46.1	209	\|State\|Description
	210	\|Lights green\|Relay #4 is closed
	211	\|Off\|Relay #4 is opened
11.2	212
5.3	213

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