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EMUS G1 BMS – DISTRIBUTED GROUPED

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1 Cell Group Module

CAN Cell Group Modules (also known as CGMs) are advanced, microprocessor equipped cell communication galvanically isolated adapters that allow the Control Unit to communicate with the Cell Modules over the CAN bus instead of directly. Total 32 of them can be used in a single battery pack, which allows to connect the Cell Modules into several small daisy chains instead of one long chain.

2 Cell Module

Cell Module, mounted on each serial cell or group of paralleled cells. Cell module type from EMUS assortiment is selected according balancing current requirement, e.g for 50-100Ah cell is appropriate to choose 0.7A balancing current cell module Small type. It is helpful to calculate by such ratio: cell capacity (Ah) = ~0.5- 1% required balancing current. This ratio depends according to cells quality (inbalance), over system thermal management capabilities.

3 Current Sensor

EMUS support three types of current sensors: busbar dual range, closed loop hall effect and third party “Isabellenhütte” IVT series current sensors.

4 Control Unit

EMUS G1 Control Unit (or simply Control Unit) is the main controller that autonomously executes all core and utility functions of battery management. 

It connects to user’s PC via USB port and allows to make BMS system configuration via EMUS Control Panel.

EMUS G1 Control Unit is also equipped with a non isolated CAN interface. This interface is multipurpose, and enables the Control Unit to:
• Communicate with other CAN equipped EMUS G1 BMS components
• Control certain third-party charging devices
• Transmit BMS activity data (either periodically or by request)
• Receive new configuration parameter values and other special messages

EMUS Distributed Grouped system is suitable for Lithium-ion chemistry battery packs in e-mobility, electric energy storages (EES) applications where modularity is required. In such applications where are used medium to high capacity prismatic, or paralleled cylindrical or pouch cells such BMS topology (Distributed Grouped) is best for managing multiple segments of cells with Cel Group Modules for each segment. CAN Cell Group Modules (also known as CGMs) are advanced, microprocessor equipped cell communication adapters that allow the Control Unit to communicate with the Cell Modules over the CAN bus instead of directly.

It‘s recommended to use minimum 4 cells and maximum 80 single cells in series per one segment (with one Cell Group Module). Those segments then can be connected in series or parallel or even mixed per one battery system.
In industry sometimes it‘s called modular system, as it allows almost unlimited battery pack arrangement and can effectively manage cells or paralleled cells blocks totalling 1000Ah capacity or even more.

Including EMUS Closed Loop or Bus Bar Current sensor, or third party CAN based Isabellenhütte IVT-S series sensor and accessories for connection this system is famous for:

  • Wide scalability options for high voltage (up to 1000V*) and capacity systems (up to 1000Ah or more with customized solutions), up to 25 CGM units can be connected per one battery system
  • Cell module (balancer) on each cell
  • Wide passive balancing ranges (700mA, 1500mA, 3000mA, 6000mA) per single cell
  • External temperature sensors available for each cell‘s thermal environment monitoring
  • Supports 50, 125, 250, 500, 800 kbit/s and 1 Mbit/s CAN baud rates

* For applications above 1000V, EMUS provide customized BMS solutions, please contact at sales[et]emusbms.com

EMUS G1 Distributed Grouped system components

G1 CAN Cell Group Module

Emus BMS Can Cell Group Modules are cell communication adapters for interfacing the main controller and separate parts of a battery pack, that enables Emus battery management system to serve large battery packs and systems of multiple cell strings connected in parallel.

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G1 BMS Control Unit

EMUS BMS Unified Control Unit is the the main controller in Emus battery management system, that automatically controls the battery operation process utilizing various interfaces for measurement, control, data exchange, configuration and indication.

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G1 Bus Bar Dual Range Current Sensor

EMUS BMS Bus Bar Dual Range Current Sensor is a highly accurate hall-effect current measurement device, specifically designed to be used in EMUS battery management system.

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G1 Loop Style Dual Range Current Sensor

EMUS BMS Loop style Dual Range Current Sensor is a highly accurate hall-effect current measurement device, specifically designed to be used in EMUS battery management system.

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Cell modules

G1 Cell Module – CALB CAM 72Ah type

The CALB72 model is designed specifically for CALB CAM 72 cells (LiFePO4 chemistry).

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G1 Cell Module – A/B type

The A/B model is a standard solution, designed for convenient wiring and easy installation on most medium capacity prismatic cells.

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G1 Cell Module – 200-400Ah type

The 240Ah model is designed for easy installation on most prismatic cells and has spring terminal blocks for convenient communication wiring.

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G1 Cell Module – GBS type

The GBS model is designed specifically for GBSLFMP100AH cells.

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G1 Cell Module – 3A

The 3A model is a standard solution, designed for convenient wiring and easy installation on higher-capacity prismatic cells. This model also has a possibility to connect an additional external temperature sensor (part no. ETS02-25) for measuring the cell

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G1 Cell Module – 1.5A

The 1.5A model is a standard solution, designed for convenient wiring and easy installation on most medium capacity prismatic cells.

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Connection accessories

C3WC01A – 3 Way CAN Connector

   

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CNC03 – Connection cable (30cm, 100cm, xx cm by request)

   

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CNC04 – CAN Connection cable to Control Unit (100cm, xx cm by request)

   

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CNT01 – 120 Ohm CAN Terminator

   

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Optional components

G1 Display Unit

Emus BMS Display Unit is a device dedicated to monitor battery status and other Emus BMS activity data in real time.

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G1 Smartphone Connectivity Module

Emus BMS Smartphone Connectivity Module is low energy adapter that allows to wirelessly monitor various battery parameters in real time on any Android and iOS device using Emus EVGUI app, or any PC running Windows operating system, using the usb dongle. The Smartphone Connectivity Module connects to the main controller using RS232 interface.

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