Fronius Energy Package, Operating Instructions Manual, Page: 127 / 148

Code Description Behaviour Remedy
458 Error when recording measuring
signal
The inverter is not feed-
ing any energy into the
grid.
*)
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
The inverter is not feed-
ing any energy into the
grid.
**)
475 Insulation fault (connection
between solar module and ground)
476 Driver supply voltage too low
480,
481 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) The inverter is not feed-
ing any energy into the
grid.
Update inverter firm-
ware; *)
482 Setup interrupted after initial start-
up
The inverter is not feed-
ing any energy into the
grid.
Perform AC reset
(switch automatic
circuit breaker off
and on again); up-
date inverter firm-
ware; *)
484 -
489 CAN transmit buffer is full
The inverter is not feed-
ing any energy into the
grid.
Perform AC reset
(switch automatic
circuit breaker off
and on again); up-
date inverter firm-
ware; *)
*) If the status code is displayed all the time: Notify a Fronius-trained service en-
gineer.
**) If this status code keeps recurring, contact your system engineer.
Status codes –
Class 5
Class 5 status codes do not generally interfere with feeding energy into the grid,
but can cause restrictions. These status codes are displayed until they are ac-
knowledged by pressing a key (however, the inverter continues to operate nor-
mally in the background).
Code Description Behaviour Remedy
502 Insulation fault on solar
modules or on the battery
Warning message is
shown on the display
**)
127
EN