Class 5 Status Codes - Fronius Primo 3.0-1 Instructions De Service

Code Description
482 Start-up incomplete
Voltage U
DC fixed
483
string out of limits
485 CAN transmit buffer is full
489 Permanent overvoltage on
intermediate circuit capacitor
(five 479 status codes in a
row)
Class 5 status Class 5 status codes do not generally interfere with feeding energy into the grid, but can
codes cause restrictions. These status codes are displayed until they are acknowledged by
pressing a key (however, the inverter continues to operate normally in the background).
Code Description
Insulation error on the solar
502
modules
No energy fed into the grid in
509
the past 24 hours
Unable to communicate with
515
filter
No communication possible
516
with the storage unit
Power derating caused by
517
too high a temperature
522 DC low String 1
523 DC low String 2
Behaviour
on MPP2
The inverter is not feeding any
energy into the grid.
The inverter is not feeding any
energy into the grid.
Behaviour
Warning message is shown on
the display
Warning message is shown on
the display
Warning message on the display
Storage unit warning message
When power derating occurs, a
warning message is shown on
the display
Warning message on the display
Remedy
Perform AC reset (switch auto-
matic circuit breaker off and on
again), complete start-up
Check the MPP settings;
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer
Perform AC reset (switch auto-
matic circuit breaker off and on
again);
If this status code is displayed
all the time: Notify a Fronius-
trained service engineer
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer
Remedy
If this status code keeps recur-
ring, contact your system engin-
eer
Acknowledge status code;
check whether all the conditions
for the problem-free feeding 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
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer
Purge openings for cooling air
and heat sink if necessary;
fault is rectified automatically;
if this status code keeps recur-
ring, contact your system engin-
eer
If this status code keeps recur-
ring, contact your system engin-
eer
47