Product Manual

45
EN
Class 5 status
codes
Class 5 status codes do not generally prevent the feeding of energy into the grid, but can
restrict it. These status code are displayed until they are acknowledged by pressing a key
(the inverter, however, continues to operate normally in the background).
412
Fixed voltage mode has been
selected instead of MPP volt-
age mode and the fixed volt-
age has been set to too low or
too high a value.
-
If this status code keeps recur-
ring, contact your system engi-
neer
415
Safety cut-out via option card
or RECERBO has triggered
The inverter is not feeding any
energy into the grid.
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
416
No communication possible
between power stage set and
control system.
The inverter will automatically
attempt to connect again and,
if possible, will resume feeding
energy into the grid
425
No communication possible
with the power stage set
445 Invalid limit value settings
The inverter is not feeding any
energy into the grid for safety
reasons.
Update the inverter firmware;
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
452
Communication error between
the processors
The inverter will automatically
attempt to connect again and,
if possible, will resume feeding
energy into the grid
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
453 Short-term grid voltage error
454 Short-term grid frequency error
457 Grid relay sticking
The inverter is not feeding any
energy into the grid.
notify a Fronius-trained service
engineer
459
Error when recording the
measuring signal for the insu-
lation test
460
Reference voltage source for
the digital signal processor
(DSP) is working out of toler-
ance
472
Fuse for solar module ground
is faulty
The inverter is not feeding any
energy into the grid.
Replace fuse for solar module
ground;
if this status code keeps recur-
ring, contact your system engi-
neer
475
Solar module ground, insula-
tion fault (connection between
solar module and ground)
The inverter is not feeding any
energy into the grid.
If this status code keeps recur-
ring, contact your system engi-
neer
482 Start-up incomplete
The inverter is not feeding any
energy into the grid.
Perform AC reset (turn auto-
matic circuit breaker off and
on), complete start-up
Code Description Behaviour Remedy