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Last modified by Admin on 2025/05/12 10:19
From version 2.1
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on 2024/11/20 16:03
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To version 5.2
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Summary

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Title
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1 -1. Overview
1 +
Content
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1 -= 1.1 Basic functions =
1 += Technical specifications =
2 2  
3 -[[Figure 1. BMS Main 3.0>>image:1732117351688-532.png||data-xwiki-image-style-alignment="center" height="202" width="474"]]
3 +[[image:1732117351688-532.png||data-xwiki-image-style-alignment="center" height="202" width="474"]]
4 4  
5 -
6 6  The BMS Main 3.0 device is a modular battery management system (BMS) controller and performs the following functions:
7 7  
8 8  * collection of information about the voltage and temperature of battery cells from BMS Logic devices;
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12 12  * battery cell balancing control;
13 13  * communication with other devices (charging station, display panels, vehicle controller, etc.).
14 14  
15 -
16 16  The BMS Main 3.0 device is flexibly configured and can work with various types of lithium-ion batteries: LFP (LiFePO4 and LiFeYPO4), LCO (LiCoO2), LMO (LiMn2O4), NMC (LiNiMnCoO2), NCA (LiNiCoAlO2), LTO (Li4Ti5O12), etc.
17 17  
18 -= 1.2 Specifications =
16 +== Specifications ==
19 19  
20 -|**Parameter**|**Value**
21 -|(% colspan="2" %)**Power supply**
22 -|Supply voltage, V|9 to 32
23 -|Current consumption at supply voltage 24 V, mA, max|150
24 -|KEYRUN or CHARGE_ON signal for turning on the device, V, min|8.5
25 -|(% colspan="2" %)**Scalability**
26 -|Number of connected BMS Logic devices, max|40
27 -|Number of controlled cells, max|720
28 -|(((
18 +(% style="width:657px" %)
19 +|(% style="width:490px" %)**Parameter**|(% style="width:162px" %)**Value**
20 +|(% colspan="2" style="width:654px" %)**Power supply**
21 +|(% style="width:490px" %)Supply voltage, V|(% style="width:162px" %)9 to 32
22 +|(% style="width:490px" %)Current consumption at supply voltage 24 V, mA, max|(% style="width:162px" %)150
23 +|(% style="width:490px" %)KEYRUN or CHARGE_ON signal for turning on the device, V, min|(% style="width:162px" %)8.5
24 +|(% colspan="2" style="width:654px" %)**Scalability**
25 +|(% style="width:490px" %)Number of connected BMS Logic devices, max|(% style="width:162px" %)40
26 +|(% style="width:490px" %)Number of controlled cells, max|(% style="width:162px" %)720
27 +|(% style="width:490px" %)(((
29 29  **Number of battery modules connected in parallel, max**
30 30  
31 31  //If the device is used as a parallel battery module controller, it is necessary to install modified firmware that changes the device type to BMS Main 3X//
32 -)))|
33 -|(% colspan="2" %)**Controls**
34 -|Number of programmable switches for controlling contactors (9-32V, 2.5A)|6
35 -|Number of programmable discrete inputs (dry contact)|6
36 -|Number of programmable discrete inputs 9-32V|2
37 -|Number of programmable discrete outputs (open drain, 40V, 1A)|4
38 -|(% colspan="2" %)**Sensors**
39 -|Number of connected current sensors (two signal lines for each sensor)|3
40 -|(((
31 +)))|(% style="width:162px" %)32
32 +|(% colspan="2" style="width:654px" %)**Controls**
33 +|(% style="width:490px" %)Number of programmable switches for controlling contactors (9-32V, 2.5A)|(% style="width:162px" %)6
34 +|(% style="width:490px" %)Number of programmable discrete inputs (dry contact)|(% style="width:162px" %)6
35 +|(% style="width:490px" %)Number of programmable discrete inputs 9-32V|(% style="width:162px" %)2
36 +|(% style="width:490px" %)Number of programmable discrete outputs (open drain, 40V, 1A)|(% style="width:162px" %)4
37 +|(% colspan="2" style="width:654px" %)**Sensors**
38 +|(% style="width:490px" %)Number of connected current sensors (two signal lines for each sensor)|(% style="width:162px" %)3
39 +|(% style="width:490px" %)(((
41 41  Error in measuring signals from current sensors, V, max
42 42  
43 43  //At ambient temperature 25 ± 5 ºС//
44 -)))|0.001
45 -|Current sensor types|(((
43 +)))|(% style="width:162px" %)0.001
44 +|(% style="width:490px" %)Current sensor types|(% style="width:162px" %)(((
46 46  Bidirectional with 5V supply voltage
47 47  
48 48  (LEM series HASS, HTFS, DHAB or analogues)
49 49  )))
50 -|Number of high voltage measurement inputs (two signal lines for each input)|2
51 -|High voltage measurement range, V|10 to 1000
52 -|High voltage measurement error, V, max|± 2
53 -|Number of connected external temperature sensors (100 kOhm NTC-thermistors)|2
54 -|(((
49 +|(% style="width:490px" %)Number of high voltage measurement inputs (two signal lines for each input)|(% style="width:162px" %)2
50 +|(% style="width:490px" %)High voltage measurement range, V|(% style="width:162px" %)10 to 1000
51 +|(% style="width:490px" %)High voltage measurement error, V, max|(% style="width:162px" %)± 2
52 +|(% style="width:490px" %)Number of connected external temperature sensors (100 kOhm NTC-thermistors)|(% style="width:162px" %)2
53 +|(% style="width:490px" %)(((
55 55  Temperature measurement error using external temperature sensors, ºС, max
56 56  
57 57  //In the measurement range from -20 to +85 ºС//
58 -)))|± 2
59 -|Temperature measurement error using a built-in temperature sensor, ºС, max|± 2
60 -|Humidity measurement error using a built-in humidity sensor, %, max|± 10
61 -|(% colspan="2" %)**High-voltage interlock loop (HVIL)**
62 -|Current in the HVIL, mA, typical|25
63 -|Total resistance in the HVIL, Ohm, max|200
64 -|(% colspan="2" %)**Interfaces**
65 -|Number of USB interfaces|1
66 -|USB speed, Mbit/s|12
67 -|Number of CAN interfaces|3
68 -|CAN speed, kbit/s|125, 250 (by default), 500, 1000
69 -|Number of RS-485 interfaces|2
70 -|RS-485 speed, bit/s|600, 1200, 2400, 4800, 9600 (by default), 19200, 38400, 57600, 115200
71 -|Output voltage of CAN2 power supply, V|5.0 ± 0.5
72 -|Output current of CAN2 power supply, mA, max|400
73 -|Connecting an additional expansion interface module|BMS Wi-Fi, BMS GSM, BMS LANmodule
74 -|(% colspan="2" %)**Galvanic isolation**
75 -|(((
57 +)))|(% style="width:162px" %)± 2
58 +|(% style="width:490px" %)Temperature measurement error using a built-in temperature sensor, ºС, max|(% style="width:162px" %)± 2
59 +|(% style="width:490px" %)Humidity measurement error using a built-in humidity sensor, %, max|(% style="width:162px" %)± 10
60 +|(% colspan="2" style="width:654px" %)**High-voltage interlock loop (HVIL)**
61 +|(% style="width:490px" %)Current in the HVIL, mA, typical|(% style="width:162px" %)25
62 +|(% style="width:490px" %)Total resistance in the HVIL, Ohm, max|(% style="width:162px" %)200
63 +|(% colspan="2" style="width:654px" %)**Interfaces**
64 +|(% style="width:490px" %)Number of USB interfaces|(% style="width:162px" %)1
65 +|(% style="width:490px" %)USB speed, Mbit/s|(% style="width:162px" %)12
66 +|(% style="width:490px" %)Number of CAN interfaces|(% style="width:162px" %)3
67 +|(% style="width:490px" %)CAN speed, kbit/s|(% style="width:162px" %)125, 250 (by default), 500, 1000
68 +|(% style="width:490px" %)Number of RS-485 interfaces|(% style="width:162px" %)2
69 +|(% style="width:490px" %)RS-485 speed, bit/s|(% style="width:162px" %)600, 1200, 2400, 4800, 9600 (by default), 19200, 38400, 57600, 115200
70 +|(% style="width:490px" %)Output voltage of CAN2 power supply, V|(% style="width:162px" %)5.0 ± 0.5
71 +|(% style="width:490px" %)Output current of CAN2 power supply, mA, max|(% style="width:162px" %)400
72 +|(% style="width:490px" %)Connecting an additional expansion interface module|(% style="width:162px" %)BMS Wi-Fi, BMS GSM, BMS LANmodule
73 +|(% colspan="2" style="width:654px" %)**Galvanic isolation**
74 +|(% style="width:490px" %)(((
76 76  **Rated insulation voltage, V,,RMS,,, min**
77 77  
78 78  //Conditions: duration 1 minute, AC 50 Hz, 1) between connectors of CAN1, RS-485-1, discrete inputs/outputs interfaces and device power circuits, 2) between connectors of CAN1, RS-485-1, discrete inputs/outputs interfaces and high voltage measurement circuits, 3) between the device power supply circuits and the high voltage measurement circuits//
79 -)))|3500
80 -|(% colspan="2" %)**Weight and overall dimensions**
81 -|Overall dimensions (length × weight × height), mm|200 × 123 × 12
82 -|Weight, g, max|160 ± 5
83 -|(% colspan="2" %)**Operating conditions**
84 -|Operating temperature range, °С|-40 to +85
78 +)))|(% style="width:162px" %)3500
79 +|(% colspan="2" style="width:654px" %)**Weight and overall dimensions**
80 +|(% style="width:490px" %)Overall dimensions (length × weight × height), mm|(% style="width:162px" %)200 × 123 × 12
81 +|(% style="width:490px" %)Weight, g, max|(% style="width:162px" %)160 ± 5
82 +|(% colspan="2" style="width:654px" %)**Operating conditions**
83 +|(% style="width:490px" %)Operating temperature range, °С|(% style="width:162px" %)-40 to +85
85 85  
86 -= 1.3 Description of features =
85 +== Overall and mounting dimensions ==
87 87  
87 +
88 +[[image:1733310978839-565.png||data-xwiki-image-style-alignment="center" height="486" width="810"]] [[image:1733310978846-154.png||data-xwiki-image-style-alignment="center" height="172" width="767"]]
89 +
90 +== Description of features ==
91 +
88 88  The BMS Main 3.0 device is powered from an external source having an output voltage in the range from 9 to 32V (connector X1). The device is turned on when there is power and the KEYRUN or CHARGE_ON signal is supplied with a level of at least 8.5V.
89 89  
90 90  Up to 40 measuring devices BMS Logic 12, BMS Logic 18, BMS Logic RET (X9 connector) can be connected to BMS Main 3.0, while the maximum battery voltage can reach 3000V (assuming that 720 cells are connected with a maximum voltage of 4.2V).
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117 117  On the device board there is a P2 connector for connecting an expansion communication module: BMS Wi-Fi, BMS GSM or BMS LANmodule. With these modules, user can configure device parameters using the ElectricDeviceMonitor software and transfer accumulated log files with the state of the battery system to a remote server.
118 118  
119 119  The device can be used as a controller of several battery modules connected in parallel and controlled by other BMS Main 3 devices. To do this, install modified firmware that changes the device type to BMS Main 3X.
124 +
125 +== Typical battery system diagram ==
126 +
127 +Figure below shows an example of a functional diagram of a vehicle battery.[[image:https://docs.movicomelectric.com/bin/download/drafts/bms-main-3/battery-diagram/WebHome/1732118894784-437.png?width=556&height=786&rev=1.1||alt="1732118894784-437.png" data-xwiki-image-style-alignment="center" height="786" width="556"]]
128 +
129 +
130 +The following are connected to the BMS Main 3.0 device:
131 +
132 +* external power supply 9-32V – contacts X1.8 (VIN), X1.2 (GND), X1.3 (KEYRUN);
133 +* 4 BMS Logic 12 measuring devices – contacts X9.4 (LOGIC_5V), X9.3 (GND), X9.2 (LOGIC_A), X9.1 (LOGIC_B);
134 +* Hall-effect current sensor, for example, HASS 300-S – contacts X5.1 (CS1_5V), X5.2 (GND), X5.7 (CS1_IN1), X5.8 (CS1_REF_IN2);
135 +* precharge contactor – control contacts X2.5 (CONT1_OUT), X2.1 (GND);
136 +* main contactor (battery minus) – control contacts X2.6 (CONT2_OUT), X2.2 (GND), feedback contacts X3.9 (DIN1_SIGNAL), X3.1 (DIO_GND);
137 +* combined charge-discharge contactor (battery plus) – control contacts X2.7 (CONT3_OUT), X2.8 (GND), feedback contacts X3.10 (DIN2_SIGNAL), X3.2 (DIO_GND);
138 +* high-voltage bus before contactors – contacts X11.1 (IN1+), X12.1 (IN1-);
139 +* high-voltage bus after contactors – contacts X13.1 (IN2+), X14.1 (IN2-);
140 +* vehicle controller – contacts CAN1 bus X6.1 (CAN1_H), X6.2 (CAN1_L), X6.3 (CAN1_RS485_1_GND).
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