FS - XT

An Advanced Battery Management System Designed For High-Voltage Applications

ion_battery_management_system_fsct

System Management Unit
(Master)

Battery Monitoring Unit
(Slave)

Introduction

FS-XT is a distributed Battery Management system designed for High Voltage battery systems that are built using multiple smaller battery modules connected in series or parallel. The system consists of a Master unit and can connect upto 40 Slave units. Each Slave unit can monitor from 6 to 18 cells in series.

The slave units communicate with Master over the state of the art isoSPI protocol without the need of a processor. The Master unit runs advanced SOC and SOH algorithms to provide accurate system information. It supports 2 current sensing channels, real time clock circuitry, configurable input and output ports, temperature sensing channels and can drive up to 6 external relays. It also comes with premium safety features suitable for automotive and storage applications like support for insulation monitoring device, system interlock monitoring, contactor weld detection and system communication with isolated CAN.

Applications

High-Power Electric
and Hybrid vehicles

Construction
Equipment

Industrial Energy
Storage Systems (ESS)

Backup Battery
Systems

Features

Safety

◆ Isolation Rating of 1kV at system level
◆ Contactor Weld Detection
◆ System Interlock Monitoring
◆ Support for Insulation Monitoring Device

Performance

◆ Smart Passive Balancing Algorithm with a max. balancing Current of 420mA
◆ Operational Temperature range -40°C to 85°C
◆ Accurate State of Charge (SOC) and State of Health (SOH) estimation for different cell chemistries
◆ Capable of being used as a building block of a bigger Power Network of multiple such BMS Systems connected in series or parallel
◆ Easily Customisable features like additional temperature measurements, current sensor, higher balancing current, heater, etc.
◆ Sleep Mode Current of less than 10uA per Slave Board

Configuration and Data Management

◆ Stackable architecture based on Master (SMU) slave (BMU) configuration.
◆ Bluetooth 4.1 BLE monitoring capabilities with real time Data Visualisation on Companion Mobile App
◆ High resistance to EMI and increased accuracy.
◆ Up to 20 years of data history on an 8GB micro SD card
◆ Compatible with Desktop based CAN based tools for system configuration, real time data visualisation
◆ Compatible with Edison Analytics for advanced Data Visualisation and Analytics

BMS System Specifications

System Voltage Range13VDC – 900 VDC
Supported Pack ConfigurationPre PDU Serialisation, Post PDU Serialisation, Pre PDU Paralleling, Post PDU Paralleling
Supported Communication2 CAN2.0 A/B isolated CAN bus for system integration
Supported CAN speeds125, 250, 500, 1K kbits/sec
High system Isolation level1KVDC for isoSPI, 2.5KDCV for CAN, 3KVDC for voltage sensing lines.
UsabilityCAN based configuration settings Real time data monitoring Data download and analysis
Temperature range-40°C to 85°C

Master Specifications

Input Voltage9 to 48 V
Number of slaves supported per communication channel1 to 10
Number of communication channels available per Master4
Number of cells in series for system6-180
High voltage measurement channels4 isolated channels
High voltage measurement range0-900V
Accuracy of high voltage measurement+-1VDC
Current sensorsSupports 2 external hall effect current sensor
Range of current measurement input0-5VDC, 0.0-2.5V for input current & 2.5-5.0V for output current.
Temperature sensors4 external temperature sensor (NTC) connections
System safety monitoring featuresSupports insulation monitoring Supports PWM based interlock loop
Contactor safety feature2 contactor weld monitoring channels
General Purpose output8 channels for driving contactors, 2 high side open drain outputs, 2 low side open drain outputs.
Dimensions152 X 152 X 15 mm

Slave Specifications

Cell voltage range1V to 5V
1V to 5V6 - 18 Cells in series
Balancing current per cell420 mA @ 4.2V
Current consumption on board15mA in normal mode 5µA in sleep mode
Communication with MasterIso-SPI
Temperature sensors1 on the board + 2 external sensors (10kΩ NTC)
Dimensions100 X 75 X 12 mm

Typical FS-XT Application

Ready to improve your battery life & performance?

Get in touch

CASE STUDY

How ION Energy is Powering 8000 Battery-assisted Bicycles in Europe

The city councils in Europe plan to deploy 20,000 battery-assisted bicycles in one year and 50,000-100,000 every year going forward. The batteries powering these bicycles had to be compact, portable and double up as fast charging Power Banks, which is where ION stepped in.

CASE STUDY

How ION Energy is Powering 8000 Battery-assisted Bicycles in Europe

The city councils in Europe plan to deploy 20,000 battery-assisted bicycles in one year and 50,000-100,000 every year going forward. The batteries powering these bicycles had to be compact, portable and double up as fast charging Power Banks, which is where ION stepped in.

Read on to know how we helped the customer overcome these challenges.