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Wiki source code of BMS Repeater

Last modified by Admin on 2025/03/18 13:18
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Admin 2.1 1 = General information =
Admin 1.1 2
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4 [[image:1734105245109-437.png||data-xwiki-image-style-alignment="center" height="137" width="300"]]
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Admin 2.1 6 The BMS Repeater is a device for relaying RS-485 signals from one subnetwork to another and vice versa.
Admin 1.1 7
8 The device provides galvanic isolation up to 3500 V RMS.
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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
Admin 3.1 23 |Header types|Molex series Mini-Fit
Admin 1.1 24
25 = Connection =
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Admin 5.1 27 (% class="box errormessage" %)
Admin 4.1 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
Admin 2.1 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.
Admin 1.1 33
34 [[image:1734105319233-615.png||data-xwiki-image-style-alignment="center" height="353" width="350"]]
35
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
Admin 2.1 41 == X1 – header for communication with BMS Main board ==
Admin 1.1 42
Admin 3.1 43 Receptacle Housing: Molex 39012040. Terminals: Molex 5556
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Admin 1.1 45 [[image:1734105400608-295.png||data-xwiki-image-style-alignment="center" height="83" width="75"]]
46
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
Admin 2.1 53 == X2 – header for communication with BMS Logic board ==
Admin 1.1 54
Admin 3.1 55 Receptacle Housing: Molex 39012040. Terminals: Molex 5556
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Admin 1.1 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 )))