Fault signal relay
The potential-free relay contact closes as soon as there is a fault during operation. You use this func-
tion, for example, to signal a fault visually or acoustically.
3.2.3 Interfaces
You can configure the interfaces and the web server in the Settings menu. The device has the follow-
ing interfaces for communication and remote monitoring.
Ethernet interface
The device features two switched Ethernet ports to enable the user to, for example, connect several
devices in series if the user prefers a linear topology.
RS485-Interface
The device features two RS485-Interfaces. One RS485-Interface is earmarked for communication with
a string-combiner-box. This can be controlled using the Modbus RTU protocol. Data loggers that can-
not be connected via Ethernet can be connected to the other RS485-Interface. The Sunspec and
KACO protocol are supported in this case.
USB interface
The device's USB connection is a type A socket. It is located on the communication circuit board. The
USB connection is specified to draw 500 mA of power.
Use the USB interface to read out stored operating data, load software updates or device configura-
tions 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 infor-
mation purposes, software updates and for carrying out extensive configuration.
“Inverter Off” input / DRM0
In addition to the safety functions, the internal interface switches can also be actuated via the "Inverter
Off" input.
The Powador-protect or a protective device from another manufacturer can be used for this purpose.
If a Powador-protect is used as the central interface protection, the fail-safe disconnection of suitable
KACO inverters from the public grid can be carried out by the internal interface switches instead of
separate interface switches. This requires the inverters in the photovoltaic system to be connected to
the Powador-protect.
Information on installation and use can be found in this manual, in the Powador protect manual and in
the instructions for use of the Powador protect on the KACO web site.
At the “Inverter Off” input, instead of the Powador-protect an interface protection device from another
supplier can also be connected to actuate the internal interface switches.
Digital inputs
It is possible to enhance the device with additional digital inputs by way of an expansion module (avail-
able from KACO Customer Service). This can be used to connect a ripple control receiver or a protec-
tive shutdown system.
Manual Device description | 3
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 105 TL3 KACO blueplanet 110 TL3
KACO blueplanet 125 TL3 KACO blueplanet 137 TL3 KACO blueplanet 150 TL3 KACO blueplanet 155 TL3 KACO
blueplanet 165 TL3
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