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Wiki source code of BMS Repeater

Last modified by Admin on 2025/03/18 13:18

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author	version	line-number	content
		1	= General information =
		2
		3
		4	[[image:1734105245109-437.png\|\|data-xwiki-image-style-alignment="center" height="137" width="300"]]
		5
		6	The BMS Repeater is a device for relaying RS-485 signals from one subnetwork to another and vice versa.
		7
		8	The device provides galvanic isolation up to 3500 V RMS.
		9
		10	= Specifications =
		11
		12	\|Parameter\|Value
		13	\|Supply voltage, V\|5.0±0.5
		14	\|Current consumption @5 V, mA (no load; max)\|40
		15	\|RS-485 baud rate, bps (max)\|115200
		16	\|Output voltage, V\|5.0±0.5
		17	\|Output current, mA (max)\|400
		18	\|Dimensions (length × width × height), mm\|64 × 30 × 16
		19	\|Weight, g\|13±2
		20	\|(% colspan="2" %)Operating conditions
		21	\|Operating temperature range, ° С\|-40÷75
		22	\|Degree of protection from external influences\|IP00
		23	\|Header types\|Molex series Mini-Fit
		24
		25	= Connection =
		26
		27	(% class="box errormessage" %)
		28	(((
		29	The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.
		30	)))
		31
		32	The BMS Repeater a header to connect the any BMS Main board and a header to connect any BMS Logic board. It also has jumpers to connect bias resistors to the RS-485 bus subnetworks.
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		34	[[image:1734105319233-615.png\|\|data-xwiki-image-style-alignment="center" height="353" width="350"]]
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		36	\|Parameter\|Value
		37	\|Overall dimensions (length × width × height), mm\|64 × 30 × 16
		38	\|Mounting dimensions (length × width), mm\|57 × 23
		39	\|Mounting holes\|M3
		40
		41	== X1 – header for communication with BMS Main board ==
		42
		43	Receptacle Housing: Molex 39012040. Terminals: Molex 5556
		44
		45	[[image:1734105400608-295.png\|\|data-xwiki-image-style-alignment="center" height="83" width="75"]]
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		47	\|Pin\|Name\|Description
		48	\|1\|RS485_A1\|RS-485 line A for communication with the BMS Main
		49	\|2\|RS485_B1\|RS-485 line B for communication with the BMS Main
		50	\|3\|+5V\|Supply voltage 5V
		51	\|4\|GND1\|Ground
		52
		53	== X2 – header for communication with BMS Logic board ==
		54
		55	Receptacle Housing: Molex 39012040. Terminals: Molex 5556
		56
		57	[[image:1734105400608-295.png\|\|data-xwiki-image-style-alignment="center" height="83" width="75"]]
		58
		59	\|Pin\|Name\|Description
		60	\|1\|RS485_A2\|RS-485 line A for communication with BMS Logic
		61	\|2\|RS485_B2\|RS-485 line B for communication with BMS Logic
		62	\|3\|OUT_5V\|Output voltage 5V, max 400 mA
		63	\|4\|GND2\|Ground
		64
		65	== P1, P2 – jumpers for bias resistors of subnetwork 1 ==
		66
		67	To connect the bias resistors setting proper RS-485 bus levels on the BMS Main subnetwork install the P1 and P2 jumpers.
		68
		69	(% class="box warningmessage" %)
		70	(((
		71	Do not connect the second pair of bias resistors to the same RS-485 subnetwork.
		72	)))
		73
		74	== P3, P4 – jumpers for bias resistors of subnetwork 2 ==
		75
		76	To connect the bias resistors setting proper RS-485 bus levels on the BMS Logic subnetwork install the P3 and P4 jumpers.
		77
		78	(% class="box warningmessage" %)
		79	(((
		80	Do not connect the second pair of bias resistors to the same RS-485 subnetwork.
		81	)))