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Available languages
Available languages
Code
Description
461
Fault in the DSP data memory
463
AC polarity reversed
486
External NO contact is open
Air inlet temperature sensor is
487
faulty
AC measurement device is
488
faulty
490
Internal communication error
491
492
DC main switch is switched off
493
DC relay is faulty
Grounding fault on the control
494
board
The 3 V supply voltage on the
495
control board is faulty
The 5 V supply voltage on the
496
control board is faulty
The 14 V or 22 V supply volt-
497
age for the PWM driver is faulty
The 24 V supply voltage for the
498
power electronics is faulty
The 24 V supply voltage on the
499
control board is faulty
Class 5 status
Class 5 status codes do not generally impede the feeding of energy into the grid, but can
codes
restrict it. A status code is displayed until it is acknowledged by pressing a key (the inverter,
however, 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
No communication possible
516
with the storage unit
74
Behaviour
The inverter is not feeding any
energy into the grid.
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
Remedy
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
Check the AC polarity
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
Check external NO contact;
If this status code keeps recur-
ring, contact your system engi-
neer
Notify a Fronius-trained ser-
vice engineer
Notify a Fronius-trained ser-
vice engineer
Notify a Fronius-trained ser-
vice engineer
Switch on DC main switch
Notify a Fronius-trained ser-
vice engineer
Remedy
If this status code keeps recur-
ring, contact your system engi-
neer
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 indicator is dis-
played all the time: notify a Fro-
nius-trained service engineer
If the status indicator appears
all the time: notify a Fronius-
trained service engineer
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