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IMPORTANT! The buffer memory requires a constant power supply.
If there is an AC power outage during operation, all data in the buffer memory are lost. The
automatic night switch-off must be deactivated so that the data are not lost at night (set
"Night Mode" to ON – see chapter "Setting and Displaying Menu Items," section "Display-
ing and Setting Parameters in the 'DATCOM' Menu Item").
On the Fronius Eco, the buffer memory also functions with just a DC supply.
Suitable USB
Sticks
Due to the number of USB sticks on the market, we cannot guarantee that every USB stick
will be recognized by the inverter.
Fronius recommends using only certified, industrial USB sticks (look for the USB-IF logo).
The inverter supports USB sticks using the following file systems:
- FAT12
- FAT16
- FAT32
Fronius recommends that the USB stick only be used for recording logging data or for up-
dating the inverter software. USB sticks should not contain any other data.
USB Stick for Up-
dating Inverter
Software
The USB stick can be used to help end customers update inverter software via the USB
menu item in the SETUP menu item: the update file is first saved on the USB stick and then
transferred to the inverter. The update file must be saved in the USB stick root directory.
USB symbol on the inverter display, e.g., in the "NOW" display mode:
When the inverter recognizes a USB stick,
the USB symbol will appear at the top right
of the display.
When inserting the USB stick, make sure
that the USB symbol is displayed (it may
also be flashing).
NOTE! Please be aware that in outdoor applications the USB stick may only func-
tion in a limited temperature range. Make sure, for example, that the USB stick
will also function at low temperatures for outdoor applications.
AC Output Power
NOW
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