Fronius Energy Package, Operating Instructions Manual, Page: 30 / 148

Fronius Symo
Hybrid and
Fronius Solar
Battery switch-
on conditions If one of the following conditions is met for at least 30 seconds, energy saving
mode is ended:
- Energy saving mode is no longer permissible owing to a changed setting on
the user interface of the inverter.
- More than 50 W is available for charging the battery. The power of feeding in
for the public grid is at least 50 W greater than the power currently required
in the home network.
- If a dynamic power reduction of 0 is set, or if the system is operating in
backup power mode, the power of feeding in for the public grid is always less
than the required power in the home network.
There is a separate condition for this case (dynamic power reduction < 300 W
or active backup power mode): If the PV power is above a specified threshold
(50 W), the energy saving mode is ended.
- Battery charging from the public grid is requested via the website.
- The battery is recharged to restore the minimum state of charge or to per-
form a calibration.
- The Fronius Solar Battery is woken up as soon as the Symo Hybrid is generat-
ing PV power. This guarantees reliable operation of the battery.
Special case If the inverter does not operate for 8–12 minutes (e.g.: error), or if there is an in-
terruption in the electrical connection between the inverter and battery, the bat-
tery switches into energy saving mode in any case. This reduces self discharge of
the battery.
Indicators on the
devices and user
interfaces During energy saving mode:
- Orange status LED lights up steady
- The inverter website can be accessed
- All available data is saved and sent to Solar.web
- The current available data can be viewed on Solar.web
Energy saving mode is shown on the website of the inverter and in Solar.web by
an "i" beside the battery symbol in the system overview.
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