Wiki source code of 2. Installation and connection

Version 54.3 by Admin on 2025/02/12 12:12

version	line-number	content
31.1	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 =
30.1	3
28.1	4	== Installation procedure ==
27.1	5
40.1	6	The mounting location of the BMS Main 3 / BMS Main 3X device must be protected from mechanical particles (dust, dirt, large objects) and water. The installation location must provide easy access for subsequent connection to the device connectors.
27.1	7
	8	Overall and mounting dimensions are shown in figure below.
	9
	10	(% data-widget="image" contenteditable="false" tabindex="-1" %)[[image:1733311711953-224.png\|\|data-xwiki-image-style-alignment="center" height="566" width="775"]](% title="Click and drag to resize" %)
	11
	12	\|Parameter\|Value
	13	\|Overall dimensions (length × width × height), mm\|200 × 123 × 12
	14	\|Mounting dimensions (length × width), mm\|194 × 114
	15	\|Mounting holes\|M3
46.1	16	\|Headers X1-X9 type\|Hirose ZE05
47.1	17	\|Headers X11-X14 type\|Molex series Micro-Fit
27.1	18
30.1	19	== Headers ==
27.1	20
40.1	21	The location and designation of connectors on the BMS Main 3 / BMS Main 3X device are shown below.
27.1	22
	23	(% contenteditable="false" tabindex="-1" %)
	24	(((
	25	[[image:1732119505664-787.png\|\|data-xwiki-image-style-alignment="center" height="417" width="684"]]
	26	)))
	27
	28	(% class="box warningmessage" %)
	29	(((
	30	Attention!
	31	All headers are shown from the device side!
	32	)))
	33
30.1	34	=== X1 – header to power the device ===
27.1	35
	36	(% class="wikigeneratedid" id="H" %)
	37	(% data-widget="image" contenteditable="false" tabindex="-1" %)[[image:1732121673277-246.png\|\|data-xwiki-image-style-alignment="center" height="85" width="200"]]
	38
	39	\|Pin\|Name\|Description
	40	\|1–2, 5–6\|GND\|Ground
	41	\|3\|KEYRUN\|Power-on signal
	42	\|4\|CHARGE_ON\|Power-on signal (battery charge requirement)
	43	\|7–8\|VIN\|Power line (9-32V)
	44
	45	Power supply connection diagram:
	46
	47	(% aria-label="1732120054870-496.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732120054870-496.png\|\|data-xwiki-image-style-alignment="center" height="169" width="327"]]
	48
30.1	49	=== X2 – header for contactors ===
27.1	50
	51	(% aria-label="1732121695049-411.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121695049-411.png\|\|data-xwiki-image-style-alignment="center" height="87" width="267"]](% title="Click and drag to resize" %)
	52
	53	\|Pin\|Name\|Description
	54	\|1–4, 8–9\|GND\|Ground
	55	\|5\|CONT1_OUT\|Contactor control 1 (plus)
	56	\|6\|CONT2_OUT\|Contactor control 2 (plus)
	57	\|7\|CONT3_OUT\|Contactor control 3 (plus)
	58	\|10\|CONT4_OUT\|Contactor control 4 (plus)
	59	\|11\|CONT5_OUT\|Contactor control 5 (plus)
	60	\|12\|CONT6_OUT\|Contactor control 6 (plus)
	61
	62	Contactor connection diagram:
	63
	64	(% aria-label="1732121755886-234.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121755886-234.png\|\|data-xwiki-image-style-alignment="center" height="82" width="260"]]
	65
30.1	66	=== (% title="Click and drag to resize" %)(%%)X3 – header for discrete inputs and outputs ===
27.1	67
	68	(% aria-label="1732121811285-182.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121811285-182.png\|\|data-xwiki-image-style-alignment="center" height="94" width="531"]]
	69
	70	\|Pin\|Name\|Description
	71	\|1–8, 12, 16–17, 21\|DIO_GND\|Ground of input and output signals
36.1	72	\|9\|DIN1_SIGNAL\|Discrete input 1 “dry contact”
	73	\|10\|DIN2_SIGNAL\|Discrete input 2 “dry contact”
	74	\|11\|DIN3_SIGNAL\|Discrete input 3 “dry contact”
	75	\|13\|DIN4_SIGNAL\|Discrete input 4 “dry contact”
	76	\|14\|DIN5_SIGNAL\|Discrete input 5 “dry contact”
	77	\|15\|DIN6_SIGNAL\|Discrete input 6 “dry contact”
27.1	78	\|18\|DIN7_VIN\|Discrete input 7 (signal detection with voltage 9-32V)
	79	\|19\|DIN8_VIN\|Discrete input 8 (signal detection with voltage 9-32V)
	80	\|20\|DOUT1_OD\|Discrete output 1 “open drain” (60 V, 1A)
	81	\|22\|DOUT2_OD\|Discrete output 2 “open drain” (60 V, 1A)
	82	\|23\|DOUT3_OD\|Discrete output 3 “open drain” (60 V, 1A)
	83	\|24\|DOUT4_OD\|Discrete output 4 “open drain” (60 V, 1A)
	84
	85	Connection diagram of a discrete input to a dry contact output:
	86
	87	(% aria-label="1732121887401-555.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121887401-555.png\|\|data-xwiki-image-style-alignment="center" height="63" width="196"]](% title="Click and drag to resize" %)(%%)Connection diagram of a discrete input to an open collector output:
	88
	89	(% aria-label="1732122137116-973.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732122137116-973.png\|\|data-xwiki-image-style-alignment="center" height="100" width="274"]](% title="Click and drag to resize" %)(%%)Connection diagram for a discrete input for detecting a 9-32V signal:
	90
	91	(% aria-label="1732121926812-202.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121926812-202.png\|\|data-xwiki-image-style-alignment="center" height="76" width="242"]](% title="Click and drag to resize" %)(%%)Connection diagram for discrete output:
	92
51.1	93	[[image:1739361269041-663.png\|\|data-xwiki-image-style-alignment="center" height="93" width="275"]]
	94
30.1	95	=== X4 – header for HVIL ===
27.1	96
30.1	97	[[image:1732122015188-642.png\|\|data-xwiki-image-style-alignment="center" height="64" width="150"]]
27.1	98
	99	\|Pin\|Name\|Description
	100	\|1\|-\|Not used
	101	\|2\|HVIL_OUT\|Output of the current measurement circuit in the current loop (lower potential, measuring shunt output)
	102	\|3\|HVIL_IN\|Input of the current measurement circuit in the current loop (higher potential, measuring shunt input)
	103	\|4\|HVIL_PWR\|Current loop power supply (max 5V, 25mA)
	104
40.1	105	If the BMS Main 3 / BMS Main 3X device generates current in a current loop, the current loop must be connected to the HVIL_PWR and HVIL_IN pins. If BMS Main 3 / BMS Main 3X is a passive current loop meter, then the current loop must be connected to the HVIL_IN and HVIL_OUT pins.
27.1	106
	107	Connection diagram to the current loop:
	108
54.1	109	[[image:1739361367866-742.png\|\|data-xwiki-image-style-alignment="center" height="210" width="281"]]
	110
31.1	111	=== X5 – header for current and temperature sensors ===
27.1	112
30.1	113	[[image:1733311958053-469.png\|\|data-xwiki-image-style-alignment="center" height="83" width="349"]]
27.1	114
	115	(% style="width:539px" %)
	116	\|Pin\|Name\|(% style="width:402px" %)Description
	117	\|1\|CS1_5V\|(% style="width:402px" %)Current sensor 1 power line (5 V, max 50 mA)
	118	\|2–6\|GND\|(% style="width:402px" %)Ground
	119	\|7\|CS1_IN1\|(% style="width:402px" %)Current sensor 1 signal line (for a dual-range current sensor, High range output)
	120	\|8\|CS1_REF_IN2\|(% style="width:402px" %)Current sensor 1 reference voltage signal line (for a dual-range current sensor, Low range output)
	121	\|9\|CS2_5V\|(% style="width:402px" %)Current sensor 2 power line (5 V, max 50 mA)
	122	\|10\|CS2_IN1\|(% style="width:402px" %)Current sensor 2 signal line (for a dual-range current sensor, High range output)
	123	\|11\|CS2_REF_IN2\|(% style="width:402px" %)Current sensor 2 reference voltage signal line (for a dual-range current sensor, Low range output)
	124	\|12\|CS3_5V\|(% style="width:402px" %)Current sensor 3 power line (5 V, max 50 mA)
	125	\|13\|CS3_IN1\|(% style="width:402px" %)Current sensor 3 signal line (for a dual-range current sensor, High range output)
	126	\|14\|CS3_REF_IN2\|(% style="width:402px" %)Current sensor 3 reference voltage signal line (for a dual-range current sensor, Low range output)
	127	\|15\|TEMP1\|(% style="width:402px" %)Temperature sensor 1 signal line (NTC-thermistor 100 kOhm)
	128	\|16\|TEMP2\|(% style="width:402px" %)Temperature sensor 2 signal line (NTC-thermistor 100 kOhm)
	129
	130	Current sensor connection diagram (using the example of LEM HASS 100-S):
	131
	132	[[image:1733316158040-285.png\|\|data-xwiki-image-style-alignment="center" height="170" width="412"]]
	133
	134	Current sensor connection diagram (using the example of LEM DHAB S/118):
	135
	136	[[image:1733316170709-142.png\|\|data-xwiki-image-style-alignment="center" height="171" width="413"]]
	137
	138	NTC-thermistor connection diagram:
	139
	140	[[image:1733316189878-329.png\|\|data-xwiki-image-style-alignment="center" height="130" width="260"]]
	141
30.1	142	=== X6 – header for CAN1 and RS-485-1 (external buses) ===
27.1	143
	144	[[image:1733316218666-814.png\|\|data-xwiki-image-style-alignment="center" height="55" width="162"]]
	145
	146	\|Pin\|Name\|Description
	147	\|1\|CAN1_H\|CAN1 line H for communication with external equipment
	148	\|2\|CAN1_L\|CAN1 line L for communication with external equipment
	149	\|3\|CAN1_RS485_1_GND\|Ground of CAN1 and RS-485-1
	150	\|4\|RS485_1_A\|RS-485-1 line A for communication with external equipment
	151	\|5\|RS485_1_B\|RS-485-1 line B for communication with external equipment
	152
	153	Connection diagram to the CAN1 bus:
	154
	155	[[image:1733316241362-843.png\|\|data-xwiki-image-style-alignment="center" height="153" width="410"]]
	156
	157	Connection diagram to the RS-485-1 bus:
	158
	159	[[image:1733316483336-290.png\|\|data-xwiki-image-style-alignment="center" height="152" width="417"]]
	160
30.1	161	=== X7 – header for CAN2 (internal bus) ===
27.1	162
	163	[[image:1733316517741-698.png\|\|data-xwiki-image-style-alignment="center" height="59" width="144"]]
	164
	165	\|Pin\|Name\|Description
38.1	166	\|1\|CAN2_H\|CAN2 line H for communication with other BMS devices
	167	\|2\|CAN2_L\|CAN2 line L for communication with other BMS devices
27.1	168	\|3\|GND\|Ground
	169	\|4\|CAN2_5V\|CAN2 power line (5 V, max 400 mA)
	170
	171	Connection diagram to the CAN2 bus (using the example of connecting BMS Display 1.2):
	172
	173	[[image:1733316563149-458.png\|\|data-xwiki-image-style-alignment="center" height="158" width="392"]]
	174
30.1	175	=== X8 – header for CAN3 ===
27.1	176
	177	[[image:1733316517741-698.png\|\|data-xwiki-image-style-alignment="center" height="59" width="144"]]
	178
	179	\|Pin\|Name\|Description
38.1	180	\|1\|CAN3_H\|CAN3 line H
	181	\|2\|CAN3_L\|CAN3 line L
27.1	182	\|3\|GND\|Ground
	183	\|4\|CAN3_5V\|CAN3 power line (5 V, max 400 mA)
	184
	185	(% class="box infomessage" %)
	186	(((
38.1	187	Note:
	188	CAN3 operates differently depending on used firmware:
27.1	189
38.1	190	* BMS Main 3: CAN3 bus is reserved;
39.1	191	* BMS Main 3X: CAN3 bus is used to connect with BMS Main 3 inside parallel strings. Diagram for connecting battery modules to the CAN3 bus:
38.1	192
	193	[[image:1733316622613-181.png\|\|data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="417"]]
	194	)))
27.1	195
30.1	196	=== X9 – header for BMS Logic (RS-485-2) ===
27.1	197
	198	[[image:1733316517741-698.png\|\|data-xwiki-image-style-alignment="center" height="59" width="144"]]
	199
	200	\|Pin\|Name\|Description
	201	\|1\|LOGIC_B\|RS-485 line B for communication with BMS Logic
	202	\|2\|LOGIC_A\|RS-485 line A for communication with BMS Logic
	203	\|3\|GND\|Ground
	204	\|4\|LOGIC_5V\|BMS Logic power line (+5V, max 400mA)
	205
40.1	206	(% class="box infomessage" %)
	207	(((
	208	Note:
	209	RS-485-2 operates differently depending on used firmware:
27.1	210
40.1	211	* BMS Main 3X: RS-485-2 bus is reserved;
	212	* BMS Main 3: RS-485-2 bus is used to connect with BMS Logics in a battery pack. Connection diagram for BMS Logic devices:
27.1	213
40.1	214	[[image:1733316674363-604.png\|\|data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="163" width="400"]]
	215	)))
	216
30.1	217	=== X10 – miniUSB connector ===
27.1	218
41.1	219	The miniUSB connector is used to configure the parameters of the BMS Main 3 / BMS Main 3X device.
27.1	220
30.1	221	=== X11 – header for high-voltage bus before contactors (plus) ===
27.1	222
	223	[[image:1733316780753-798.png\|\|data-xwiki-image-style-alignment="center" height="60" width="91"]]
	224
	225	\|Pin\|Name\|Description
	226	\|1\|IN1+\|Plus of the high-voltage bus (before contactors)
	227	\|2\|IN1+\|Plus of the high-voltage bus (before contactors)
	228
	229	(% class="box warningmessage" %)
	230	(((
	231	The connected voltage must not exceed 1000V.
	232	)))
	233
30.1	234	=== X12 – header for high-voltage bus before contactors (minus) ===
27.1	235
	236	[[image:1733316843397-336.png\|\|data-xwiki-image-style-alignment="center" height="53" width="79"]]
	237
	238	\|Pin\|Name\|Description
	239	\|1\|IN1-\|Minus of the high-voltage bus (before contactors)
	240	\|2\|IN1-\|Minus of the high-voltage bus (before contactors)
	241
	242	(% class="box warningmessage" %)
	243	(((
	244	The connected voltage must not exceed 1000V.
	245	)))
	246
30.1	247	=== X13 – header for high-voltage bus after contactors (plus) ===
27.1	248
	249	[[image:1733316780753-798.png\|\|data-xwiki-image-style-alignment="center" height="60" width="91"]]
	250
	251	\|Pin\|Name\|Description
	252	\|1\|IN2+\|Plus of the high-voltage bus (after contactors)
	253	\|2\|IN2+\|Plus of the high-voltage bus (after contactors)
	254
	255	(% class="box warningmessage" %)
	256	(((
	257	The connected voltage must not exceed 1000V.
	258	)))
	259
30.1	260	=== X14 – header for high-voltage bus after contactors (minus) ===
27.1	261
	262	[[image:1733316843397-336.png\|\|data-xwiki-image-style-alignment="center" height="53" width="79"]]
	263
	264	\|Pin\|Name\|Description
	265	\|1\|IN2-\|Minus of the high-voltage bus (after contactors)
	266	\|2\|IN2-\|Minus of the high-voltage bus (after contactors)
	267
	268	(% class="box warningmessage" %)
	269	(((
	270	The connected voltage must not exceed 1000V.
	271	)))
	272
30.1	273	=== J1 – jumper for switching RS-485-1 bus terminal resistor ===
27.1	274
	275	[[image:1733316982359-759.png\|\|data-xwiki-image-style-alignment="center" height="77" width="148"]]
	276
	277	To connect a terminal resistor between the RS485_1_A and RS485_1_B lines, install a jumper. The jumper is installed according to the table:
	278
	279	\|Pin\|Name\|Description
	280	\|1-2\|120 Ohm\|The 120 Ohm terminal resistor of the RS-485-1 bus is connected
	281	\|2-3\|-\|The 120 Ohm terminal resistor of the RS-485-1 bus is disconnected
	282
30.1	283	=== J2 – jumper for switching CAN1 bus terminal resistor ===
27.1	284
	285
	286	[[image:1733316982359-759.png\|\|data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the CAN1_H and CAN1_L lines, install a jumper. The jumper is installed according to the table:
	287
	288	\|Pin\|Name\|Description
	289	\|1-2\|120 Ohm\|The 120 Ohm terminal resistor of the CAN1 bus is connected
	290	\|2-3\|-\|The 120 Ohm terminal resistor of the CAN1 bus is disconnected
	291
30.1	292	=== J3 – jumper for switching CAN2 bus terminal resistor ===
27.1	293
	294
	295	[[image:1733316982359-759.png\|\|data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the CAN2_H and CAN2_L lines, install a jumper. The jumper is installed according to the table:
	296
	297	\|Pin\|Name\|Description
	298	\|1-2\|120 Ohm\|The 120 Ohm terminal resistor of the CAN2 bus is connected
	299	\|2-3\|-\|The 120 Ohm terminal resistor of the CAN2 bus is disconnected
	300
30.1	301	=== J5, J6 – jumpers for emergency opening of contactors when removing discrete input signals DIN7, DIN8 ===
27.1	302
41.1	303	The BMS Main 3 / BMS Main 3X device implements a circuit for hardware opening of power contactors when the discrete input signal DIN7 and/or DIN8 (voltage level 9-32V) is removed. To enable this function, jumper J5 and/or J6 must be installed.
27.1	304
30.1	305	== Indicators ==
27.1	306
30.1	307	=== DS1 – LED indicating device power ===
27.1	308
	309	\|State\|Description
	310	\|Lights up green\|Device power (+5V) is present
	311	\|Doesn’t light up\|No device power
	312
30.1	313	=== DS2 – LED indicating device work ===
27.1	314
	315	\|State\|Description
	316	\|Blinking green\|Executing the battery management program
	317	\|No blinking\|Program execution error
	318
54.2	319	=== DS3 – LED indicating interaction with child devices ===
27.1	320
54.2	321	(% style="width:447px" %)
	322	\|State\|(% style="width:166px" %)Description (Main 3)\|(% style="width:168px" %)Description (Main 3X)
	323	\|Blinking yellow\|(% style="width:166px" %)The device interacts with BMS Logic devices\|(% style="width:168px" %)The device interacts with BMS Main 3 devices
	324	\|No blinking\|(% style="width:166px" %)-\|(% style="width:168px" %)-
27.1	325
54.2	326	=== DS4 – LED indicating loss of connection with child devices ===
27.1	327
54.3	328	\|State\|Description (Main 3)\|
54.2	329	\|Blinking/lights up red\|Communication with one or more BMS Logic devices is lost\|
	330	\|No blinking\|Communication with BMS Logic is stable\|
27.1	331
30.1	332	=== DS5-DS10 – LEDs indicating contactor switches 1-6 ===
27.1	333
	334	\|State\|Description
	335	\|Lights up green\|The switch supplies voltage to the contactor winding
	336	\|Doesn’t light up\|The switch doesn’t supply voltage to the contactor winding
	337
30.1	338	=== DS11 – LED indicating the presence of power supply for contactors ===
27.1	339
	340	\|State\|Description
	341	\|Lights up green\|Power supply for contactor switches (9-32V) is present
	342	\|Doesn’t light up\|Power supply for contactor switches (9-32V) is not present
	343
30.1	344	== Connection procedure ==
27.1	345
47.1	346	The BMS can connect to batteries with voltage levels dangerous to life and health. When working with high voltage batteries, follow electrical safety rules, use safety glasses, protective clothing, insulated tools and devices.
	347
	348	(% class="box errormessage" %)
	349	(((
48.1	350	The system is not designed to operate with batteries with total voltage more than 3000V.
47.1	351	)))
	352
27.1	353	(% class="box warningmessage" %)
	354	(((
42.1	355	Before connection, configure the device (see [[Settings>>doc:Battery management systems.BMS Main 3.3\. Configuration.WebHome]]). Correct operation of the BMS system is only possible with correct configuration.
27.1	356	)))
	357
	358	All operations to connect the device must be carried out with the supply voltage removed.
	359
	360	* Connect the power contactors to header X2.
	361	* Connect one or more current sensors, as well as external temperature sensors (if necessary) to header X5.
	362	* Connect BMS Logic devices to header X9.
	363	* Connect digital inputs and outputs (if necessary) to header X3.
	364	* Connect the high voltage bus (if necessary) to headers X11-X14.
	365	* Connect the high-voltage network integrity circuit (if necessary) to header X4.
	366	* Connect external devices (if necessary) to header X6.
	367	* Connect other devices (BMS Indication, BMS Display, if necessary) to header X7.
40.1	368	* If the BMS Main 3 / BMS Main 3X is the last device on the RS-485-1, CAN1, or CAN2 bus, install jumpers J1-J3.
27.1	369	* Connect an external power supply to header X1. The device will start when there is a 9-32V power supply and one of the KEYRUN or CHARGE_ON signals with a voltage of more than 8.5V is supplied.

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