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Available languages
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Code
Description
Power derating caused by too
517
high a temperature
518
Internal DSP malfunction
535
Error during fan self-test
536
Main fan error
555
Circulating fan error
Functional incompatibility (one
or more PC boards in the in-
558
verter are not compatible with
each other, e.g. after a PC
board has been replaced)
Power derating caused by
560
overfrequency
External overvoltage protec-
tion has tripped (connected to
597
the "IN1" NO/alarm contact ter-
minals)
External overvoltage protec-
tion has tripped (connected to
598
the "IN2" NO/alarm contact ter-
minals)
External overvoltage protec-
tion has tripped (connected to
599
the "IN3" NO/alarm contact ter-
minals)
Class 7 status
Class 7 status codes relate to the control system, the configuration and inverter data re-
codes
cording, and may directly or indirectly affect the process of feeding energy into the grid.
Code
Description
EEPROM has been reinitial-
721
ised or EEPROM is faulty
751
Time lost
Real Time Clock module com-
752
munication error
Time not set for a long period
753
of time
(> 1/2 year)
Behaviour
When power derating occurs, a
warning message is shown on
the display
Warning message is shown on
the display
Possible error displays or mal-
functions on the inverter
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.
Warning message is shown on
the display
Behaviour
Warning message is shown on
the display
Warning message is shown on
the display
Remedy
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
If the status indicator appears
all the time: notify a Fronius-
trained service engineer
If this status code keeps recur-
ring, contact your system engi-
neer
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.
Replace overvoltage protec-
tion - notify a Fronius-trained
service engineer
Remedy
Acknowledge status code;
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
Reset the time and date on the
inverter
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
75
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