Wiki source code of 2. Installation and connection

Version 48.1 by Admin on 2024/12/04 11:27

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
48.1	27	(% class="box warningmessage" %)
	28	(((
	29	Attention!
	30	All headers are shown from the device side!
	31	)))
20.3	32
26.3	33	=== 2.3.1 P1 – header for power supply ===
2.2	34
47.1	35	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
2.2	36
46.1	37	\|Pin\|Name\|Description
	38	\|1\|GND\|Ground
	39	\|2\|V+\|Supply voltage 9-30V
4.2	40
26.3	41	=== 2.3.2 P15 – header for BMS Logic ===
4.2	42
47.1	43	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
4.2	44
46.1	45	\|Pin\|Name\|Description
	46	\|1\|RS485_A\|RS-485 line A for communication with BMS Logic
	47	\|2\|RS485_B\|RS-485 line B for communication with BMS Logic
	48	\|3\|+5V\|Supply voltage for BMS Logic
	49	\|4\|GND\|Ground
44.1	50
26.3	51	=== 2.3.3 P12 – header for current sensor ===
5.2	52
47.1	53	[[image:1732198890482-787.png\|\|data-xwiki-image-style-alignment="center" height="77" width="71"]]
5.3	54
46.1	55	\|Pin\|Name\|Description
	56	\|1\|+5V\|Supply voltage for the current sensor 5V, max 50 mA
	57	\|2\|GND\|Ground
	58	\|3\|Vcs\|ADC input (current sensor output)
	59	\|4\|Vref\|ADC input (current sensor reference signal)
5.3	60
26.3	61	=== 2.3.4 P13 – header for humidity sensor ===
5.3	62
47.1	63	[[image:1732198896526-660.png\|\|data-xwiki-image-style-alignment="center" height="70" width="64"]]
6.2	64
46.1	65	\|Pin\|Name\|Description
	66	\|1\|+5V\|Supply voltage 5 V, max 50 mA
	67	\|2\|GND\|Ground
	68	\|3\|Vhs\|ADC input (humidity sensor output)
	69	\|4\|Vts\|ADC input (temperature sensor output)
6.2	70
26.3	71	=== 2.3.5 P8 – header of relay 1 ===
6.2	72
47.1	73	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	74
	75	By default, relay 1 is used to control the discharging contactor.
	76
46.1	77	\|Pin\|Name\|Description
	78	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	79	\|2\|NO\|Normally open contact
6.2	80
26.3	81	=== 2.3.6 P9 – header of relay 2 ===
11.2	82
47.1	83	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	84
	85	By default, relay 2 is used to output the “Allow charging” signal.
	86
46.1	87	\|Pin\|Name\|Description
	88	\|1\|V+\|Switching voltage (up to 55V, max 2A)
	89	\|2\|NO\|Normally open contact
6.2	90
26.3	91	=== 2.3.7 P6 – header of relay 3 ===
6.2	92
47.1	93	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
6.2	94
11.2	95	By default, relay 3 is used to control the charging contactor.
6.2	96
46.1	97	\|Pin\|Name\|Description
	98	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	99	\|2\|NO\|Normally open contact
6.2	100
26.3	101	=== 2.3.8 P7 – header of relay 4 ===
6.2	102
47.1	103	[[image:1732198827034-560.png\|\|data-xwiki-image-style-alignment="center" height="78" width="41"]]
11.2	104
	105	By default, relay 4 is used to control the heater.
	106
46.1	107	\|Pin\|Name\|Description
	108	\|1\|V+\|Switching voltage (up to 55V, max 8A)
	109	\|2\|NO\|Normally open contact
6.2	110
26.3	111	=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
6.2	112
47.1	113	[[image:1731517180930-597.png\|\|data-xwiki-image-style-alignment="center" height="81" width="113"]]
6.2	114
21.3	115	(% style="width:641px" %)
46.1	116	\|Pin\|Name\|Description
	117	\|1\|EXT_RS485_A\|RS-485 line A for communication with external equipment
	118	\|2\|CAN_H\|CAN H line for communication with external equipment
	119	\|3\|+5V_CAN\|Supply voltage 5V for external devices, max 200 mA
	120	\|4\|EXT_RS485_B\|RS-485 line B for communication with external equipment
	121	\|5\|CAN_L\|CAN L line for communication with external equipment
	122	\|6\|GND_CAN\|Ground
11.2	123
26.3	124	=== 2.3.10 P21 – CAN termination resistor jumper ===
11.2	125
47.1	126	[[image:1731517188900-976.png\|\|data-xwiki-image-style-alignment="center" height="78" width="149"]]
11.2	127
	128	To connect the termination resistor between the lines CAN_H and CAN_L, install a jumper, according to the P21 pinout:
	129
46.1	130	\|Pin\|Name\|Description
	131	\|1-2\|120 Ohm\|Termination resistor 120 Ohm is connected
	132	\|2-3\|-\|Termination resistor 120 Ohm is not connected
11.2	133
26.3	134	=== 2.3.11 P22 - RS-485 termination resistor jumper ===
11.2	135
47.1	136	[[image:1731517195672-298.png\|\|data-xwiki-image-style-alignment="center" height="81" width="155"]]
11.2	137
	138	To connect the termination resistor between the EXT_RS485_A and EXT_RS485_B lines, install a jumper according to the P22 pinout:
	139
46.1	140	\|Pin\|Name\|Description
	141	\|1-2\|120 Ohm\|Terminating resistor 120 Ohm is connected
	142	\|2-3\|-\|Terminating resistor 120 Ohm is not connected
11.2	143
26.3	144	=== 2.3.12 P11 – header for discrete inputs/outputs ===
11.2	145
47.1	146	[[image:1732198937514-731.png\|\|data-xwiki-image-style-alignment="center" height="85" width="272"]]
11.2	147
46.1	148	\|Pin\|Name\|Description
	149	\|16\|IN_1\|Discrete input #1 “dry contact” (+5V)
	150	\|8\|GND_1\|Discrete input #1 “dry contact” (ground)
	151	\|15\|IN_2\|Discrete input #2 “dry contact” (+5V)
	152	\|7\|GND_2\|Discrete input #2 “dry contact” (ground)
	153	\|14\|IN_3\|Discrete input #3 “dry contact” (+5V)
	154	\|6\|GND_3\|Discrete input #3 “dry contact” (ground)
	155	\|13\|IN_4\|Discrete input #4 “dry contact” (+5V)
	156	\|5\|GND_4\|Discrete input #4 “dry contact” (ground)
	157	\|12\|OUT_4\|Discrete output #4 (+5V, 20mA)
	158	\|4\|GND_OUT_4\|Discrete output #4 (ground)
	159	\|11\|OUT_3\|Discrete output #3 (+5V, 20mA)
	160	\|3\|GND_OUT_3\|Discrete output #3 (ground)
	161	\|10\|OUT_2\|Discrete output #2 (+5V, 20mA)
	162	\|2\|GND_OUT_2\|Discrete output #2 (ground)
	163	\|9\|OUT_1\|Discrete output #1 (+5V, 20mA)
	164	\|1\|GND_OUT_1\|Discrete output #1 (ground)
11.2	165
26.3	166	= 2.4 Indicators =
11.2	167
26.3	168	=== 2.4.1 DS1 – power indicator ===
13.1	169
46.1	170	\|State\|Description
	171	\|Lights red\|The device is powered
	172	\|Off\|The device is not powered
11.2	173
26.3	174	=== 2.4.2 DS2 – operation indicator ===
11.2	175
46.1	176	\|State\|Description
	177	\|Blinking green\|The BMS firmware is running
	178	\|Off\|The BMS firmware is not running
11.2	179
26.3	180	=== 2.4.3 DS3 – communication indicator ===
11.2	181
46.1	182	\|State\|Description
	183	\|Blinking yellow (2Hz)\|Initializing communication with BMS Logic boards
	184	\|Blinking yellow (25Hz)\|Communication with BMS Logic is established
11.2	185
26.3	186	=== 2.4.4 DS4 – error indicator ===
11.2	187
	188
46.1	189	\|(State\|Description
	190	\|(Blinking red\|Errors in communication with BMS Logic
	191
26.3	192	=== 2.4.5 DS7 – relay 1 indicator ===
11.2	193
46.1	194	\|State\|Description
	195	\|Lights green\|Relay #1 is closed
	196	\|Off\|Relay #1 is opened
11.2	197
26.3	198	=== 2.4.6 DS8 – relay 2 indicator ===
11.2	199
46.1	200	\|State\|Description
	201	\|Lights green\|Relay #2 is closed
	202	\|Off\|Relay #2 is opened
19.1	203
26.3	204	=== 2.4.7 DS5 – relay 3 indicator ===
11.2	205
46.1	206	\|State\|Description
	207	\|Lights green\|Relay #3 is closed
	208	\|Off\|Relay #3 is opened
11.2	209
26.3	210	=== 2.4.8 DS6 – relay 4 indicator ===
11.2	211
46.1	212	\|State\|Description
	213	\|Lights green\|Relay #4 is closed
	214	\|Off\|Relay #4 is opened
11.2	215
5.3	216

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