Fronius Primo 3.0-1 Instructions De Service page 46

Code Description
451 Memory error detected
Communication error
452
between the processors
453 Short-term grid voltage error
Short-term grid frequency
454
error
456 Anti-islanding function is no
longer being implemented
correctly
457 Grid relay sticking
Error when recording the
459 measuring signal for the insu-
lation test
Reference voltage source for
the digital signal processor
460
(DSP) is working out of toler-
ance
461 DSP data memory error
462 Error during DC feed monitor-
ing routine
463 Reversed AC polarity, AC
connector inserted incorrectly
474 RCMU sensor faulty
Solar module ground, insula-
tion fault (connection
475
between solar module and
earth)
476 Driver supply voltage too low
479 Intermediate circuit voltage
relay is switched off
Functional incompatibility
(one or more PC boards in
480, the inverter are not compat-
481 ible with each other, e.g. after
a PC board has been
replaced)
46
Behaviour
The inverter will automatically
attempt to connect again and, if
possible, will resume feeding
energy into the grid
The inverter is not feeding any
energy into the grid.
The inverter is not feeding any
energy into the grid.
The inverter will automatically
attempt to connect again and, if
possible, will resume feeding
energy into the grid
The inverter is not feeding any
energy into the grid.
Remedy
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer
Notify a Fronius-trained service
engineer
If this status code keeps recur-
ring, contact your system engin-
eer
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer
Update inverter firmware;
If the status code is displayed
all the time: Notify a Fronius-
trained service engineer