Product Manual

46
Class 6 status
codes
Some of the class 6 status codes necessitate intervention by a Fronius-trained service en-
gineer.
Code Description Behaviour Remedy
502
Insulation error on the solar
modules
Warning message is shown on
the display
If this status code keeps recur-
ring, contact your system engi-
neer
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 condi-
tions for the problem-free feed-
ing of energy into the grid have
been met (e.g. are the solar
modules covered with snow?)
If the status code is displayed
all the time: look out for further
status codes
517
Derating caused by too high a
temperature
When power derating occurs, a
warning message is shown on
the display
Purge cooling air openings and
heat sink if necessary;
fault is rectified automatically;
if this status code keeps recur-
ring, contact your system engi-
neer
551
Fuse for solar module ground
is faulty
Warning is shown on the dis-
play
Replace fuse for solar module
ground;
if this status code keeps recur-
ring, contact your system engi-
neer
558
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)
Possible error displays or mal-
functions on the inverter
If this status code keeps recur-
ring, contact your system engi-
neer
560
Derating caused by overfre-
quency
This status code is displayed
when the grid frequency be-
comes excessively high.
The inverter will then reduce its
output.
The status indicator will contin-
ue to be displayed until the in-
verter has returned to normal
operation.
As soon as the grid frequency
is back within the permissible
range and the inverter has re-
turned to normal operation, the
fault is rectified automatically.
If this status code keeps recur-
ring, contact your system engi-
neer.
568
Incorrect input signal on the
multifunction current interface
The status code is displayed in
the case of an incorrect input
signal on the multifunction cur-
rent interface and with the fol-
lowing setting:
Basic menu / Input signal /
Mode of operation = Ext. Sig-
nal, triggering method = Warn-
ing
Acknowledge status code;
check the devices connected
to the multifunction current in-
terface;
if this status code keeps recur-
ring, contact your system engi-
neer.