Fronius Agilo 75.0 - Manual (Page 89)

87
EN
Status diagnostics and troubleshooting
Displaying status
codes The inverter performs a system self diagnosis that automatically detects many faults that
may occur and shows them on the display. This means you are promptly made aware of
malfunctions in the inverter and the photovoltaic system, or of any installation or operating
faults.
If the system self diagnosis has detected a specific fault, the associated status code will be
shown on the display.
Total failure of the
display If the display fails to come on some time after sunrise:
-
Check the AC voltage ON the inverter connections:
the AC voltage must be 230 V (+ 10 % / - 5 %)*.
* The mains voltage tolerance depends on the country setup
Class 1 status
codes Class 1 status codes generally only arise momentarily and are caused by the public grid.
The initial response of the inverter in this case is to disconnect itself from the grid. The grid
is subsequently checked for the stipulated monitoring period. If no further problem has
been detected by the end of this period, then the inverter will resume feeding energy into
the grid.
Depending on the country setup, the SoftStart-function GPIS is activated:
after cutting out due to an AC fault, the output power of the inverter is continuously in-
creased by 10% every minute in line with the VDE-AR-N 4105 guideline.
IMPORTANT! Status codes may sometimes appear briefly as a result of the inverter's con-
trol response. If the inverter then continues working with no sign of any problem, this
means that there was no fault.
102
AC voltage too high
Behaviour Following careful testing and when the grid conditions are within
the permissible range again, the inverter will resume feeding
energy into the grid.
Remedy Check grid connections
If this status code keeps recurring, contact your system engi-
neer
103
AC voltage too low
Behaviour Following careful testing and when the grid conditions are within
the permissible range again, the inverter will resume feeding
energy into the grid.
Remedy Check grid connections
If this status code keeps recurring, contact your system engi-
neer