Features - Nuvation Energy NUV300-BC-12 Product Manual

3.3. Features

Key software features
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Manage balancing and provide stack management.
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Calculates State of Charge and Depth of Discharge at both the cell and stack levels.
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Communicates with external systems via Modbus TCP (Ethernet), Modbus RTU (RS-485), or
CAN bus.
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Provides access to the Nuvation Energy BMS Operator Interface.
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Supports firmware upgrades via Ethernet.
CAN and RS-485
An isolated CAN 2.0 port, as well as an isolated RS-485 (Modbus) port, are available on the Low-
Voltage BMS. These interfaces can be used to control an external battery charger/inverter and
communicating with the external system (vehicle central controller, grid-attached controller, etc.)
Control GPIO
The Low-Voltage BMS provides 4 isolated outputs and 4 general-purpose inputs to connect
external systems or external equipment. The functionality of the GPIO interface is configurable by
the end-user to match their needs. This connector also has 4 other inputs which perform specific
functions, such as Factory Reset, Clear Faults, Shutdown, and BMS Enable.
Link Bus
The Link Bus chain enables power and communication between the Low-Voltage BMS and the
series-connected chain Cell Interface modules.
Contactors
The Low-Voltage BMS module's Contactors connector enabled connecting to up to 4 external high-
current contactor coils. The connector provides 24 VDC power for energizing contactor coils, and
optionally accepts external coil power input for voltage flexibility.
Current Shunt
This interface is used to connect the Low-Voltage BMS to a current shunt for stack charge and
discharge current measurement as well as overall stack voltage measurement.
Document ID: NE-PM-002
Nuvation Energy Low-Voltage BMS - Product Manual
8 Rev 1.2, 2021-03-03
Curie Update 1