Fronius Energy Package User Manual
Page 115

113
EN
*) If the status code is displayed all the time: Notify a Fronius-trained service engineer.
Code
Description
Behaviour
Remedy
502
Insulation fault on solar mod-
ules or on Fronius Solar Bat-
tery
Warning message is
shown on the display
**)
509
No energy fed into the grid in
the past 24 hours
Warning message is
shown on the display
Acknowledge status code;
check whether all the conditions for
the problem-free feeding of energy
into the grid have been met (e.g. are
the solar modules covered with
snow?); **)
515
Unable to communicate with
filter
Warning message on
the display
*)
516
Unable to communicate with
the data storage unit
Data storage unit warn-
ing message
*)
517
Power derating caused by ex-
cessively high temperatures
When power derating
occurs, a warning mes-
sage is shown on the
display.
If necessary, purge cooling air open-
ings and heat sink;
fault is rectified automatically; **)
519
Unable to communicate with
the data storage unit
Data storage unit warn-
ing message
*)
520
No energy fed into the grid by
the PV in the past 24 hours
Warning message is
shown on the display
Acknowledge status code;
check whether all the conditions for
the problem-free feeding of energy
into the grid have been met (e.g. are
the solar modules covered with
snow?); *)
522
DC low (PV). No PV voltage
available.
Warning message on
the display
In the case of hybrid systems, this
message appears overnight or if no
photovoltaics are connected to the
Fronius Symo Hybrid; *)
523
DC low (battery). The battery
has been activated but is either
not connected or is not
switched on.
Warning message on
the display
Switch on, connect or check battery;
*)
558,
559
Functional incompatibility (one
or more PC boards in the in-
verter are not compatible with
each other, e.g. after a PC
board has been replaced)
Warning message on
the display
Update inverter firmware; *)
560
Power derating caused by
overfrequency
Displayed when grid fre-
quency becomes exces-
sively high. The power is
reduced.
As soon as the grid frequency is back
within the permissible range and the
inverter has returned to normal oper-
ation, the fault is rectified automati-
cally; **)
567
Power derating caused by
overvoltage
Displayed when grid
voltage becomes exces-
sively high. The power is
reduced.
As soon as the grid voltage is back
within the permissible range and the
inverter has returned to normal oper-
ation, the fault is rectified automati-
cally; **)
573
Power derating caused by ex-
cessively low temperatures
When power derating
occurs, a warning mes-
sage is shown on the
display.
Fault rectified automatically; **)