Fronius Symo 3.0-3-S - Status Codes - Class 5

49
EN
Status codes –
Class 5
Class 5 status codes do not generally interfere with feeding energy into the grid, but can
cause restrictions. These status codes are displayed until they are acknowledged by
pressing a key (however, the inverter continues to operate normally in the background).
Code Description Behaviour Remedy
502 Insulation error on the solar
modules
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 No communication possible
with the storage unit
Storage unit warning
message
*)
517
Power derating caused by too
high a temperature
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; **)
518 Internal DSP malfunction Warning message on
the display
*)
519 No communication possible
with the storage unit
Storage unit warning
message
*)
520
No energy fed into the grid by
MPPT1 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 String 1 Warning message on
the display
*)
523 DC low String 2
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; **)
564 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; *)
566
Arc detector switched off
(e.g. during external arc moni-
toring)
The status code is dis-
played every day until
the arc detector is reac-
tivated.
No error
Confirm status code by pressing 'En-
ter'