Victron energy Venus GX Manual page 12

AC-coupled PV with Fronius PV Inverters
This document describes how to setup Energy-storage, Off-grid/Micro-grid and Backup systems with
AC-coupled PV, using Fronius PV Inverters. For Fronius information on the same subject, see their
MicroGrid flyer.
The Victron system monitor, the Color Control GX includes built-in Fronius monitoring.
Frequency shifting
To make sure that the Fronius PV inverter works well with Victron inverter/chargers, both must be
configured with the right 'frequency shift settings':
The Fronius PV Inverter must be set to Setup MG, short for Micro-Grid.
For off-grid systems, load the Multi or Quattro with the PV Inverter support Assistant
For on-grid / energy-storage systems, load the Multi or Quattro with the ESS Assistant. Read
information about ESS in the ESS Design & installation manual.
And the 1:1 limit rule must be adhered to.
AC-coupled PV with Fronius PV Inverters