Key Features - Nuvation Energy NUVG5 Product Manual

and current conditions in battery systems.

2.3.2.1. Key Features

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Configuration Registers - Numerous configuration options, called 'registers', to tune the G5
High-Voltage BMS for the specific end-application.
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Functional Safety - Functional safety according to IEC-60730-1 specification is accomplished
through several key capabilities of the software.
•
Protection Functions - Provides protection functions for a battery against hazardous voltage,
temperature, and current conditions.
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Sensor Fault Detection - Detects sensor faults in cell voltage, temperature, stack voltage,
and stack current.
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Shorted Shunt Detection- Detects short circuit failures, and wiring defects.
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Microelectronic Fault Detection - Implements extensive internal verification to ensure that
processors, memories, and communication paths are functional and the safety software is
executing correctly.
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Contactor Life Tracking - Monitors the life of the contactors during the operation of the G5
Stack Switchgear. Contactor life is degraded when the contactors are opened at elevated load
currents.
•
DC Bus and Stack Connector Temperature Monitoring - Monitors the temperature at the
high power connections to the G5 Stack Switchgear. High temperatures on these connectors
are an indication of untorqued connections which can lead to a battery fire.
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Continuous Cell Balancing - A proprietary algorithm for continuous cell balancing leading to
shorter maintenance time. The battery does not have to remain above a specific cell voltage
threshold for balancing to occur.
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Balancing Counters Per Cell - A counter per cell for the number of times a cell was passively
balanced is maintained and persisted on the G5 High-Voltage BMS. This data provides a clear
indication of cells which often have smaller relative capacities within the stack.
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Configurable Modbus Points - Provides a configurable read/write access of G5 High-Voltage
BMS registers over the Modbus TCP interface.
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Fault/Warning Bitfields - The status of all G5 High-Voltage BMS faults and warnings are
collected in separate bitfield registers. The fault/warning status can be determined by a few
register reads or mapped into Modbus points via the Configurable Modbus Points feature.
Document ID: NE-DS-011
Nuvation Energy G5 High-Voltage BMS - NUVG5 Product Manual
9 Rev 1.0, 2023-05-19
G5 Faraday