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Battery Management system BMS,6S-20S with SMBus,UART, RS485, CANBus communication protocol for Li-ion/Li-Polymer/LiFePO4 Battery Packs

Part number: HCX-D338

Features and Benefits

 Programmable BMS with  SMBUS, UART, RS485, CANBus Communication protocol

HCX-D328 BMS main functions descriptions:
1.Integrated with Microchip, designed for Li-ion / Li-Po (3.6V/3.7V) and LiFepO4 (3.2V), configured from 6S till 20S,accurate SOC/SOH by detecting voltage and current, able to detect the voltage of signal cell.
2.4 channels of temperature-measurement with NTC, software and hardware protection on over-high-voltage,over-low-voltage, over-current, over-temperature and short-circuit.
3.Programmable all logical parameters even on delay time of all the protection procedures.
4.Pre-charge function ( to active the cell’s from over-low-voltage)
5.Intelligent cell balancing function management.
6.EEPROM function to save the production processing files, history records of charges.
7.SMBUS, UART, RS485, CANBus protocol.
8.Thru the communication, BMS can send the discharging and charging voltage/current, temp. information to the end-application and take action on protections
9.Support LED display for fuel/gas gauge (with a button switch to display out the information)
10.With multi-working modes, such as working mode, energy-saving mode, sleeping mole to reduce the current consumption (system can easily be back to normal working mode from sleeping mode or energy-saving mode).

Specifications

Item

Contents

Criteria

(Adjustable from software/hardware)

1

Model

HCX-D338

6S-20S

Adjustable from software

2

Voltage

Charging voltage

Adjustable from software

3

Current

Maximal continuous charging current

80A (adjustable from hardware)

Maximal continuous discharging current

80A (adjustable from hardware)

Current consumption

≤200μA

 

4

Overcharge Protection

Over charge detection voltage

Adjustable from software

Over charge detection delay time

Adjustable from software

Over charge release voltage

Adjustable from software

5

Over Discharge Protection

Over discharge detection voltage

Adjustable from software

Over discharge detection delay time

Adjustable from software

Over discharge release voltage

Adjustable from software

6

Over Current Protection

Over current detection voltage

Adjustable from software

Over current detection current

Adjustable from software and hardware

Detection delay time

Adjustable from software

Release condition

Adjustable from software

7

Short Circuit Protection

Detection condition

Adjustable from software

Detection delay time

Adjustable from software

Release condition

Cut load, automatically recover

8

Balance

On @ ≥50mV±5mV

OFF @ ≤30mV±5mV

Balance voltage for single cell

Adjustable from software

Balance current for single cell

Adjustable from hardware

9

Resistance

Inner resistance

≤20mΩ

10

Temperature

Single cell temperature when discharge (over temp. protection) ≥65

Adjustable from software

Single cell temperature when discharge (low temp. protection) <-40

Adjustable from software

Single cell temperature when Charge (over temp. protection) ≥50

Adjustable from software

Single cell temperature when Charge (low temp. protection) <0

Adjustable from software

11

Fuel/Gas gauge

Display with  LEDs

Thru one button to check capacity

Connection Diagram

Self-consumption in different working modes:

·         Normal Operating Mode: 13mA typical, 18mA maximum self-consumption.

·         Sleep Mode: 200μA typical, 300μA maximum self-consumption. 

·         The system automatically back to normal operating mode from sleeping mode if current is <2A after no communication signal for 60mins.

·         The system also will be back from sleep mode to normal operating mode if any charge or discharge activity is detected or if there’s communication signal again

Voltage protection

·         As soon as one cell’s voltage exceeds the protection point, the charging process will be interrupted on the whole pack. The protection circuit returns to normal conditions as soon as all the cell’s voltage falls back to normal. Thedischarge will be allowed and the cell balancing will be activated.

 

·         As soon as one cell’s voltage is under the protection point, the discharging process will be interrupted on the whole pack, BMS will be in energy-saving mode, The protection circuit returns to normal operation mode as soon as all the cell’s voltage charged back to normal. When BMS protected up on discharging, the charging processing is still allowed.

Current protection

·         Software:

>>As soon as the discharging current exceeds the over current detection current during the detection delay time, the discharging process will be interrupted. The BMS returns to normal conditions after over current detection current released.

·         Hardware:

>>As soon as the discharging current exceeds the over current detection current during the detection delay time, the discharging process will be interrupted. The BMS returns to normal conditions after over current detection current released.

ESD:

Battery is protected against electrical discharges:

- 15kV air

- 8kV contact

LED indicator


Enter sleep mode

 

SM SU send command data to SM

How to connect BMS to PC/laptop to set up all parameters and the communications.

The communication conventor is an optional product which will not come with products normaly.

For engineering study, please send us email for this tool, then we will send you this together with our software drive coming with a USB drive as below:

(the communication convertor costs extra if needed)

·         BesTech Power Software for BMS communication inside 

·         Specification of the Communication Conventeor inside

·         BMS Specification inside

·         Battery Connection diagram inside

 

·         BesTech Power Company profile inside

After installed our software to your PC/laptop,The PC-end-software (copyright belongs to BesTech Power) to Set and modifying all the logical parameters

LED Fuel/Gas gauge display:

Battery cells connection instructions:

Commnucation ports connections:

 

 

PCB Layout and size

For more information, please email us at info@BesTechPower.com or sales@BesTechPower.com .

Thank you again for choosing BesTech Power.

 

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