The "Fronius Solar Net" LED flashes briefly every 5 seconds:
data communication error in the Fronius Solar Net
-
Overcurrent (current flow > 3 A, e.g. resulting from a short circuit in the
Fronius Solar Net ring)
-
Undervoltage (not a short circuit, voltage in Fronius Solar Net < 6.5 V, e.g. if
there are too many DATCOM components on the Fronius Solar Net and not
enough electrical power is available)
In this case, power for the Fronius DATCOM components must be supplied
by connecting an additional power supply (43,0001,1194) to one of the
Fronius DATCOM components.
To detect the presence of an undervoltage, check some of the other Fronius
DATCOM components for faults as required.
After cutting out because of overcurrent or undervoltage, the inverter attempts
to restore the power supply in the Fronius Solar Net every 5 seconds while the
fault is still present.
Once the fault is rectified, power to the Fronius Solar Net will be restored within
5 seconds.
Example Recording and archiving data from the inverter and sensor using a Fronius
Datamanager and a Fronius Sensor Box:
1 2
3
IN
OUT
°C
W/m²
m/s
IN
OUT
IN
OUT
Sensor Box
WLAN
* Fronius Datamanager
*
IN
OUT
Data network with 3 inverters and a Fronius Sensor Box:
- Inverter 1 with Fronius Datamanager 2.0
- Inverters 2 and 3 without Fronius Datamanager 2.0!
= Terminating plug
The external communication (Fronius Solar Net) takes place on the inverter via
the data communication area. The data communication area contains two RS 422
interfaces as inputs and outputs. RJ45 plug connectors are used to make the
connection.
IMPORTANT! Since the Fronius Datamanager 2.0 functions as a Datalogger, the
Fronius Solar Net ring must not include any other Dataloggers / Datamanagers.
As such, only one Fronius Datamanager / Dataloggers is permirred per Fronius
Solar Net ring!
Any other Fronius Datamanagers / Dataloggers must be removed and the unoc-
cupied option card compartment sealed off by replacing the cover (item number
- 42,0405,2094); alternatively, use an inverter without Fronius Datamanager
(light version).
21
EN
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