51
EN-US
*) If status code persists: Contact a Fronius-trained service technician
**) If this status code keeps recurring, contact your system installer
Class 6 Status
Codes
Class 6 status codes may require the intervention of a trained Fronius service technician.
517
Power derating due to exces-
sive temperature
A warning message is
shown on the display
when a power derating
occurs
Purge cooling air openings and cool-
ing elements if necessary;
Error is corrected automatically; **)
518 Internal DSP malfunction Warning message on
the display
*)
519 Communication with memory
unit not possible
Warning message of
memory unit
*)
520
No feed-in within the last 24
hours from MPPT1
Warning message is
shown on the display
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); *)
522 DC low String 1 Warning message on
the display
*)
523 DC low String 2
558,
559
Function incompatibility (one
or more PC boards in the in-
verter are not compatible with
each other, e.g., after PC
board replacement)
Warning message on
the display
Update inverter firmware; *)
560
Power derating due to over-fre-
quency
Displayed when grid fre-
quency is too high. The
power is reduced.
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; **)
564 Function incompatibility (one
or more PC boards in the in-
verter are not compatible with
each other, e.g., after PC
board replacement)
Warning message on
the display
Update inverter firmware; *)
566
Arc Detector switched off
(e.g., in the event of external
arc monitoring)
This status code is dis-
played every day until
the Arc Detector is reac-
tivated.
No error!
Confirm the status code by pressing
the "Enter" key
572 Power limitation due to power
module
Power is limited by the
power module
*)
573 Undertemperature warning Warning message on
the display
*)
Code Description Behavior Remedy
Code Description Behavior Remedy
601 CAN bus is full Inverter does not feed ener-
gy into the grid.
Update inverter firm-
ware; *)
603 AC module temperature sensor faulty
(L3)
The inverter will automati-
cally attempt to connect
again and, if possible, re-
sume feeding energy into
the grid
*)
604
DC module temperature sensor faulty
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