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Frax

The Frax EMS battery system in the Voltmasters EMS: one Modbus TCP unit exposed as a PCS with its own BMS and on-board metering.

Our EMS supports the Frax EMS, a storage system that combines the PCS, the BMS and the metering in one unit. It connects over Modbus TCP.

Supported devices

Model Role
Frax EMS Battery system with PCS, BMS and metering

How the integration works

The system appears in the EMS as a battery inverter (PCS), together with its battery management system, the on-board PV and an energy meter.

The integration offers no cumulative energy counters, so the production and consumption totals are derived from the live power measurements.

Setup

Enter the battery capacity when you add the device. The EMS does not read it from the unit, so make sure it is correct.