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NOTE!
Risk from a full USB thumb drive.
This can result in the loss of data or data being overwritten.
▶
Buffer Memory
If the USB flash drive is removed (e.g., to back up data), the logging data is writ-
ten to a buffer memory in the inverter.
As soon as the USB flash drive is reinserted, the data is automatically transferred
from the buffer memory to the USB flash drive.
The buffer memory can store a maximum of 6 logging points. Data is logged only
during inverter operation (power greater than 0 W). The logging interval is set to
30 minutes. This results in a time span of 3 hours for recording data in the buffer
memory.
When the buffer memory is full, the oldest data in the buffer memory is written
over with the new data.
IMPORTANT! The buffer memory requires a constant power supply.
If there is an AC power outage during operation, all data in the buffer memory is
lost. The automatic night switch-off must be deactivated so that data is not lost
at night (set "Night Mode" setup parameter to ON – see the Operating Instruc-
tions for Datamanager 2.0 and the sections "Setting and Displaying Menu Items,"
"Displaying and Setting Parameters in the 'DATcom' Menu Item").
For Fronius Eco or Fronius Symo 15.0-3 208, the buffer memory also works with
pure DC voltage.
Suitable USB
Due to the number of USB thumb drives on the market, we cannot guarantee
Thumb Drives
that every USB thumb drive will be recognized by the inverter.
Fronius recommends using only certified, industrial USB thumb drives (look for
the USB-IF logo).
The inverter supports USB thumb drives using the following file systems:
-
-
-
Fronius recommends that the USB thumb drive only be used for recording log-
ging data or for updating the inverter software. USB thumb drives should not
contain any other data.
When inserting the USB thumb drive, make sure that it has a sufficient
memory capacity.
FAT12
FAT16
FAT32
45
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