USB interface
The USB connection of the device is a type A socket. It is located on the communication circuit board. The USB
connection is specified to draw 500 mA of current.
Use the USB interface to read out stored operating data, load software updates or device configurations using a
FAT32-formatted USB stick.
It is possible to establish a connection to the webserver integrated into the device by connecting a USB-WiFi
stick. In addition to starting up the device, the web interface can be used for service information purposes,
software updates and for carrying out extensive configuration.
3.3 System layout
Battery with
management system
Bidirectional feed-in
inverter
with interface switch
Line protection
DC isolator switch
Grid
* DC fuse
Fig.4: Circuit diagram for a system with one bidirectional feed-in inverter
Key Definition / information on the connection
Battery Intrinsically safe battery system
DC isolator switch An external DC isolator switch is required outside the
device; this can also be integrated into the battery housing.
Bidirectional feed-in inverter The connection from the battery unit is carried out on the
device's DC connection.
Line protection Safety fuse or circuit breaker.
3 | Description of the device Manual
KACO blueplanet gridsave 92.0 TL3
Page 10
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