Class 5 Status Codes; Class 6 Status Codes - Fronius Symo 10.0-3 208-240 Instructions De Service

Class 5 Status Class 5 status codes generally do not impair feed-in mode, but can lead to limitations in
Codes feed-in mode. They will be displayed until the status code is acknowledged by pressing a
key (the inverter, however, continues working normally in the background).
Code Description
502 Insulation fault on solar mod-
ules
509
No feed-in within the last 24
hours
515 No internal communication
with filter
516 Communication with memory
unit not possible
Power derating due to exces-
517
sive temperature
518 Internal DSP malfunction
519 Communication with memory
unit not possible
520
No feed-in within the last 24
hours from MPPT1
522 DC low String 1
523 DC low String 2
558, Function incompatibility (one
559 or more PC boards in the in-
verter are not compatible with
each other, e.g.,after PC board
replacement)
Power derating due to over-fre-
560
quency
564 Function incompatibility (one
or more PC boards in the in-
verter are not compatible with
each other, e.g.,after PC board
replacement)
*) If status code persists: Contact a Fronius-trained service technician
**) If this status code keeps recurring, contact your system installer
Class 6 Status Class 6 status codes may require the intervention of a trained Fronius service technician.
Codes
50
Behavior
Warning message is
shown on the display
Warning message is
shown on the display
Warning message on
the display
Warning message of
memory unit
A warning message is
shown on the display
when a power derating
occurs
Warning message on
the display
Warning message of
memory unit
Warning message is
shown on the display
Warning message on
the display
Warning message on
the display
Displayed when grid fre-
quency is too high. The
power is reduced.
Warning message on
the display
Remedy
**)
Acknowledge status code;
Check whether all conditions for
problem-free grid power feed opera-
tion are met (e.g., whether solar mod-
ules are covered with snow); **)
*)
*)
Purge cooling air openings and cool-
ing elements if necessary;
Error is corrected automatically; **)
*)
*)
Acknowledge status code;
Check whether all conditions for
problem-free grid power feed opera-
tion are met (e.g., whether solar mod-
ules are covered with snow); *)
*)
Update inverter firmware; *)
As soon as the grid frequency returns
to the permissible range and the in-
verter is back to normal operation, the
error is automatically corrected; **)
Update inverter firmware; *)