108
772 Memory on memory PC
board cannot be accessed;
inverter infeed is deactivat-
ed for safety reasons
1. SSP not connected 1. Check SSP
773 Memory on memory PC
board not initialized; invert-
er infeed is deactivated for
safety reasons
1. Memory not programmed or
memory lost
1. Reload setup
2. Faulty Recerbo 2. Replace Recerbo
775 Incorrect programming of
power module
1. Power module or filter PC
board not programmed
1. See device -> info menu:
Search for missing version info
and replace faulty PC board
782*–783* Error during update 1. Occurs once 1. Automatically corrected
2. Recerbo faulty 2. Replace Recerbo
784* Wait for memory allocation 1. Occurs once 1. Automatically corrected
2. Recerbo faulty 2. Replace Recerbo
789* Setup CRC failed 1. Faulty file in the memory 1. Update software
2. Recerbo faulty 2. Replace Recerbo
794* Memory structure damaged 1. Faulty file in the memory 1. Update software
2. Recerbo faulty 2. Replace Recerbo
901 Measuring error channel 1 Current from channel 1 is dif-
ferent from the others
Check settings, DC fuses and
modules
902 Measuring error channel 2 Current from channel 2 is dif-
ferent from the others
Check settings, DC fuses and
modules
903 Measuring error channel 3 Current from channel 3 is dif-
ferent from the others
Check settings, DC fuses and
modules
904 Measuring error channel 4 Current from channel 4 is dif-
ferent from the others
Check settings, DC fuses and
modules
905 Measuring error channel 5 Current from channel 5 is dif-
ferent from the others
Check settings, DC fuses and
modules
990 Discrepancy in the return of
the value from the irradia-
tion sensor too large
Difference between power of
the irradiation sensor and the
power of the inverter is too
large
Check archive values, shad-
owing, string fuse and for faulty
modules
991 Discrepancy in the irradia-
tion sensor too large
Discrepancy in the irradiation
sensor too large
Check whether the irradiation
sensor is dirty, in shadow or
faulty
992 No values from the irradia-
tion sensor, or value(s) not
permitted
Irradiation sensor provides no
values or inadmissible values
Check cabling of the irradiation
sensor
993 Energy report faulty Archive values missing Check archive values in the
Fronius Solar.web server or
Datalogger
996 No connection to the Fro-
nius Solar.web
No connection to the Fronius
Solar.web
1. Check LED status on the
Datalogger
2. Restart Datalogger
3. Check Internet connection
4. Check whether customer
has a timer to switch off the In-
ternet connection and the time
interval setting is too short.
Code Description Behavior Remedy
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