Optical sensor
For operating the inverter. See the
chapter headed Button functions and
LED status indicator on page 26.
Communications LED
Indicates the inverter connection
status.
LAN 1 Ethernet connection for data commu-
nication (e.g., WLAN router, home net-
work or, for commissioning with a
laptop, see the chapter headed In-
stallation with the browser on page
68).
LAN 2 Reserved for future functions. To
avoid malfunctions, only use LAN 1.
I/O terminal Push-in terminal for digital inputs/
outputs. See the chapter headed Per-
mitted cables for the data communic-
ation connection on page 46.
WSD terminal Push-in terminal for the WSD installa-
tion. See the chapter headed "WSD
(wired shutdown)" on page 21.
Modbus terminal Push-in terminal for the installation of
Modbus 0, Modbus 1, 12 V, and GND
(ground).
The data connection to the connected
components is established via the
Modbus terminal. The inputs M0 and
M1 can be freely selected. Max. 4
Modbus participants per input; see
the chapter headed Modbus parti-
cipants on page 63.
Button functions
and LED status
indicator
Ok
Standby
Uncritical Error
(flashing)
Critical Error
Network Error
WPS active
Connecting
(flashing)
Connected
1x WLAN access point
2x WPS
3-6 sec. Quit Service Message
The status of the inverter is
shown via the operating status
LED. In the event of faults,
carry out the individual steps
in the Fronius Solar.start app.
The optical sensor is actuated
by touching with a finger.
The status of the connection is
shown via the communication
LED. To establish the connec-
tion, carry out the individual
steps in the Fronius Solar.start
app.
26
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