Wiki source code of 2. Installation and connection

Version 3.1 by Admin on 2024/12/09 10:40

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1.1	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 =
	3
	4	== Installation procedure ==
	5
	6	The mounting area of the BMS Mini must be protected from mechanical particles (dust, dirt, large objects) and water. The BMS Mini is recommended to be placed close to the cells it controls, but away from high current circuits to reduce interference to measuring circuits and increase overall reliability of installation.
	7
	8	The installation site must provide convenient access for subsequent connection to the device’s headers for connecting other system elements: a current sensor, contactors, display panels.
	9
	10	The BMS Mini has a heat sink to dissipate the heat generated during the balancing of the cells. When used in enclosed enclosures, heat must be removed from the sink, otherwise it may damage the device.
	11
	12	Overall and mounting dimensions of the BMS Mini are shown on figures below.
	13
	14	[[image:1733738313780-948.png\|\|data-xwiki-image-style-alignment="center" height="442" width="547"]]
	15
	16	[[image:1733738313786-252.png\|\|data-xwiki-image-style-alignment="center" height="150" width="545"]]
	17
2.1	18	\|(((
1.1	19	Parameter
	20	)))\|Value
2.1	21	\|(((
1.1	22	Overall dimensions (length × width × height), mm
	23	)))\|139.5 × 117 × 17
	24	\|Mounting dimensions (length × width), mm\|130 × 111
	25	\|Mounting holes\|M3
	26
	27	== Headers ==
	28
	29	There are names and locations of the BMS Mini headers on figure below.
	30
	31	[[image:1733738660900-622.png\|\|data-xwiki-image-style-alignment="center" height="379" width="508"]]
	32
	33	=== Х1 – header for contactors. ===
	34
	35	[[image:1733738660904-795.jpeg\|\|data-xwiki-image-style-alignment="center" height="96" width="316"]]
	36
	37	\|Pin\|Name\|Description
	38	\|1\|-\|-
	39	\|2\|+12V\|Supply voltage from the internal 12V DC/DC converter
	40	\|3\|GND\|Ground
	41	\|4\|+12V\|Supply voltage from the internal 12V DC/DC converter
	42	\|5\|GND\|Ground
	43	\|6\|+12V\|Supply voltage from the internal 12V DC/DC converter
	44	\|7\|GND\|Ground
	45	\|8\|+12V\|Supply voltage from the internal 12V DC/DC converter
	46	\|9\|GND\|Ground
	47	\|10\|-\|-
	48	\|11\|FB1\|Feedback signal from contactor 1
	49	\|12\|OUT1\|Contactor control 1 (low side switch), 100V, max 5A
	50	\|13\|FB2\|Feedback signal from contactor 2
	51	\|14\|OUT2\|Contactor control 2 (low side switch), 100V, max 5A
	52	\|15\|FB3\|Feedback signal from contactor 3
	53	\|16\|OUT3\|Contactor control 3 (low side switch), 100V, max 5A
	54	\|17\|FB4\|Feedback signal from contactor 4
	55	\|18\|OUT4\|Contactor control 4 (low side switch), 100V, max 5A
	56
	57	(% class="box warningmessage" %)
	58	(((
	59	ATTENTION!!!
	60	The load should be connected to +12V and OUTx pins. The feedback signal should be connected to FBx and GND pins. Below is an example of connecting the BMS to a contactor:
	61	)))
	62
	63	[[image:1733738760833-185.png\|\|data-xwiki-image-style-alignment="center"]]
	64
	65	=== X2 – mini-USB connector. ===
	66
	67	Mini0USB connector is used for configuring the BMS via ElectricDeviceMonito
	68
3.1	69	=== X3 – header for discrete inputs and outputs signals.[[image:1733738860923-996.png\|\|data-xwiki-image-style-alignment="center" height="90" width="283"]] ===
1.1	70
	71	\|Pin\|Name\|Description
	72	\|1\|DIN1\|Discrete input 1 “dry contact” (+5V)
	73	\|2\|DIN2\|Discrete input 2 “dry contact” (+5V)
	74	\|3\|DIN3\|Discrete input 3 “dry contact” (+5V)
	75	\|4\|DIN4\|Discrete input 4 “dry contact” (+5V)
	76	\|5\|DOUT1\|Discrete output 1 (+5V, 20mA)
	77	\|6\|DOUT2\|Discrete output 2 (+5V, 20mA)
	78	\|7\|DOUT3\|Discrete output 3 (+5V, 20mA)
	79	\|8\|DOUT4\|Discrete output 4 (+5V, 20mA)
	80	\|9\|GND\|Discrete input 1 “dry contact” (ground)
	81	\|10\|GND\|Discrete input 2 “dry contact” (ground)
	82	\|11\|GND\|Discrete input 3 “dry contact” (ground)
	83	\|12\|GND\|Discrete input 4 “dry contact” (ground)
	84	\|13\|GND\|Discrete output 1 (ground)
	85	\|14\|GND\|Discrete output 2 (ground)
	86	\|15\|GND\|Discrete output 3 (ground)
	87	\|16\|GND\|Discrete output 4 (ground)
	88
	89	=== Х4 – header for САN and RS485 interfaces. ===
	90
	91	[[image:1733738660905-974.jpeg\|\|data-xwiki-image-style-alignment="center" height="70" width="97"]]
	92
	93	\|Pin\|Name\|Description
	94	\|1\|RS485_B\|RS485 line B
	95	\|2\|+5V\|Isolated supply voltage 5V, max 400mA
	96	\|3\|CAN_L\|CAN-L line of the CAN bus
	97	\|4\|RS485_A\|RS485 line A
	98	\|5\|GND\|Isolated ground
	99	\|6\|CAN_H\|CAN-H line of the CAN bus
	100
	101	=== Х5 – header for ON/OFF button. ===
	102
	103	[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image005.emz]][[image:1733739076878-324.png\|\|data-xwiki-image-style-alignment="center" height="70" width="41"]]
	104
	105	\|Pin\|Name\|Description
	106	\|1\|BTN\|Signal to turn on/off the BMS (“dry contact”, +3.3V)
	107	\|2\|GND\|Signal to turn on/off the BMS (“dry contact”, ground)
	108
	109	=== X6 – header for cells temperature sensors. ===
	110
	111	[[image:1733738660906-697.png\|\|data-xwiki-image-style-alignment="center" height="91" width="190"]]
	112
	113	\|Pin\|Name\|Description
	114	\|1\|TEMPG1\|Ground of the thermistor 1
	115	\|2\|TEMPG2\|Ground of the thermistor 2
	116	\|3\|TEMPG3\|Ground of the thermistor 3
	117	\|4\|TEMPG4\|Ground of the thermistor 4
	118	\|5\|TEMPG5\|Ground of the thermistor 5
	119	\|6\|TEMPG6\|Ground of the thermistor 6
	120	\|7\|TEMP1\|Signal from the thermistor 1
	121	\|8\|TEMP2\|Signal from the thermistor 2
	122	\|9\|TEMP3\|Signal from the thermistor 3
	123	\|10\|TEMP4\|Signal from the thermistor 4
	124	\|11\|TEMP5\|Signal from the thermistor 5
	125	\|12\|TEMP6\|Signal from the thermistor 6
	126
	127	=== X7 - header for current sensor. ===
	128
	129	[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image007.emz]][[image:1733739118831-618.png\|\|data-xwiki-image-style-alignment="center" height="79" width="71"]]
	130
	131	\|Pin\|Name\|Description
	132	\|1\|+5V\|Supply voltage for a current sensor 5V, max 50 mA
	133	\|2\|GND\|Ground
	134	\|3\|Vcs\|ADC input (current sensor output)
	135	\|4\|Vref\|Auxiliary ADC input (current sensor reference signal)
	136
	137	=== Х8 – header for battery cells ===
	138
	139	[[image:1733738660908-107.jpeg\|\|data-xwiki-image-style-alignment="center" height="83" width="291"]]
	140
	141	\|Pin\|Name\|Description
	142	\|1\|C0\|Minus of the cell stack (for measuring purposes only)
	143	\|2\|C2\|Cell 2
	144	\|3\|C4\|Cell 4
	145	\|4\|C6\|Cell 6
	146	\|5\|C8\|Cell 8
	147	\|6\|C10\|Cell 10
	148	\|7\|C12\|Cell 12
	149	\|8\|C14\|Cell 14
	150	\|9\|C16\|Cell 16
	151	\|10\|C18\|Cell 18 (maximum potential of the cell stack, for measuring purposes only)
	152	\|11\|NC\|Not connected
	153	\|12\|C1\|Cell 1 (minimum potential with respect to C0)
	154	\|13\|C3\|Cell 3
	155	\|14\|C5\|Cell 5
	156	\|15\|C7\|Cell 7
	157	\|16\|C9\|Cell 9
	158	\|17\|C11\|Cell 11
	159	\|18\|C13\|Cell 13
	160	\|19\|C15\|Cell 15
	161	\|20\|C17\|Cell 17
	162
	163	=== Х9 – header to power the device ===
	164
	165	[[image:1733738660910-242.png\|\|data-xwiki-image-style-alignment="center" height="61" width="78"]]
	166
	167	\|Pin\|Name\|Description
	168	\|1\|VBAT+\|Supply voltage for BMS Mini
	169	\|2\|VBAT-\|BMS Mini power ground
	170
	171	(% class="box warningmessage" %)
	172	(((
2.1	173	Attention! The BMS Mini S device is galvanically connected to the battery (the minus of the battery is the device ground). In view of this, when a BMS Wi-Fi or BMS GSM module is connected to the device, the antenna braid will also be galvanically connected to the battery (connected to the battery negative). It is recommended to isolate the antenna cable from the battery case to prevent negative potential from appearing on the case.
1.1	174	)))
	175
	176	=== J1 – jumper for switching CAN bus terminal resistor ===
	177
2.1	178	To connect the terminal resistor between the CAN_H and CAN_L lines, install the jumper J1 according to the following figure:
1.1	179
	180	[[image:1733738660910-372.png\|\|data-xwiki-image-style-alignment="center" height="85" width="162"]]
	181
	182	=== J2 – jumper for switching RS-485 terminal resistor ===
	183
2.1	184	To connect the terminal resistor between the RS485_A and RS485_B lines, install the jumper J1 according to the following figure:
1.1	185
	186	[[image:1733738660910-372.png\|\|data-xwiki-image-style-alignment="center" height="85" width="162"]]
	187
	188	== Connection procedure ==
	189
	190	=== Connecting battery cells ===
	191
	192
	193	To connect battery cells, follow figure below. Incorrect connection of the cells can damage the BMS Mini.
	194
	195	Begin the connection with the negative line of the battery: the “C0“ is connected to the “B-“, then the first cell (C1) is connected, then the second (С2), etc. If not all inputs of the cells are used, then the remaining inputs are connected to the cell with the most potential.
	196
2.1	197	[[image:1733738660912-678.png\|\|data-xwiki-image-style-alignment="center" height="326" width="650"]]
1.1	198
	199	(% class="box warningmessage" %)
	200	(((
	201	Attention!
	202	Connect the battery according to the diagram, otherwise the device may be damaged.
	203	)))
	204
	205	=== Connecting thermistors ===
	206
	207	Thermistors should be fastened to the cells, excluding short circuits to the cell terminals (for example, isolate thermistors with heat shrink).
	208
	209	[[image:1733738660915-688.png\|\|data-xwiki-image-style-alignment="center"]]
	210
	211

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