Fronius Symo Advanced 10.0-3-M Operating Instructions Manual page 105

Code Description
438 Functional incompatibility (one or
more PC boards in the inverter are
not compatible with each other, e.g.
after a PC board has been re-
placed)
443 Intermediate circuit voltage too low
or asymmetric
445 - Compatibility error (e.g. due to
replacement of a PC board)
- Invalid power stage set config-
uration
447 Insulation fault
448 Neutral conductor not connected
450 Guard cannot be found
451 Memory error detected
452 Communication error between the
processors
453 Grid voltage and power stage set
are incompatible
454 Grid frequency and power stage set
are incompatible
456 Anti-islanding function is no longer
being implemented correctly
457 Grid voltage relay fault
458 Error when recording measuring
signal
459 Error when recording the measur-
ing signal for the insulation test
460 Reference voltage source for the di-
gital signal processor (DSP) is work-
ing out of tolerance
461 DSP data memory error
462 Error during DC feed monitoring
routine
463 Reversed AC polarity, AC connect-
or inserted incorrectly
474 RCMU sensor faulty
475 Insulation fault (connection
between solar module and ground)
476 Driver supply voltage too low
Behaviour
The inverter will auto-
matically attempt to
connect again and, if
possible, will resume
feeding energy into the
grid
The inverter is not feed-
ing any energy into the
grid.
The inverter is not feed-
ing any energy into the
grid.
The inverter is not feed-
ing any energy into the
grid.
The inverter will auto-
matically attempt to
connect again and, if
possible, will resume
feeding energy into the
grid
The inverter is not feed-
ing any energy into the
grid.
The inverter is not feed-
ing any energy into the
grid.
The inverter is not feed-
ing any energy into the
grid.
Remedy
Update inverter firm-
ware; *)
*)
Update inverter firm-
ware; *)
*)
*)
Check AC cable *)
*)
**)
105