Fronius SYMO Series Installation Instructions

59
EN-US
Buffer Memory If the USB flash drive is removed (e.g., to back up data), the logging data is written 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 Instructions 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
Thumb Drives
Due to the number of USB thumb drives on the market, we cannot guarantee 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:
- FAT12
- FAT16
- FAT32
Fronius recommends that the USB thumb drive only be used for recording logging data or
for updating the inverter software. USB thumb drives should not contain any other data.
USB symbol on the inverter display, e.g., in the 'NOW' display mode:
When the inverter recognizes a USB
thumb drive, the USB symbol will appear
at the top right of the display.
When inserting the USB thumb drive,
make sure that the USB symbol is dis-
played (it may also be flashing).
AC Output Power
NOW

Fronius SYMO Series Specifications

General

MPPT Number	2
Frequency Range	50 / 60 Hz
Operating Temperature Range	-25°C to +60°C
Communication	WiFi, Ethernet, RS485
AC Nominal Voltage	3 x 230 V / 400 V
Output Voltage	3 x 230 V / 400 V
Warranty	5 years