Code Description Behaviour Remedy
573 Undertemperature warn-
ing
Warning message on
the display
*)
581 "Special Purpose Utility-
Interactive" (SPUI) setup
activated
The inverter is no
longer compliant
with the IEEE1547
and IEEE1574.1
standards because
the standalone func-
tion has been deac-
tivated, a frequency-
dependent power re-
duction has been ac-
tivated and the fre-
quency and voltage
limits are being
changed
No error
Confirm status code by pressing
'Enter'
*) If the status code is displayed all the time: Notify a Fronius-trained service
technician.
**) If this status code keeps recurring, contact your system engineer.
Class 6 status
codes
Some of the class 6 status codes necessitate intervention by a Fronius-trained
service engineer.
Code Description Behaviour Remedy
601 CAN bus is full
The inverter is not feed-
ing any energy into the
grid.
Update inverter firm-
ware; *)
603 AC module temperature sensor
faulty (L3)
The inverter will auto-
matically attempt to
connect again and, if
possible, will resume
feeding energy into the
grid
*)
604
DC module temperature sensor
faulty
607 RCMU error
The inverter is not feed-
ing any energy into the
grid.
Reset status code by
pressing 'Enter'. The
inverter resumes the
feeding of energy in-
to the grid; if the
status code keeps
appearing, check the
complete photovol-
taic system for dam-
age; **)
608 Functional incompatibility (one or
more PC boards in the inverter are
not compatible with each other, e.g.
after a PC board has been re-
placed)
The inverter is not feed-
ing any energy into the
grid.
Update inverter firm-
ware; *)
*) If the status code is displayed all the time: notify a Fronius-trained service en-
gineer
108
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