REFU Elektronik GmbH
REFUsol 48K-UL
53
Error
Code
Text
Description
Action
90020
Initialisation C1
Initialisation has failed.
Restart inverter. If this does not
rectify the error, contact Service.
90021
Initialisation C0
90024
SR parameter
error
Error in parameter initialisation. The
device has been permanently shut
down.
Please contact Service.
90029
Update fault
Update failed
The update has failed. Contact
Service.
9002A
Keep Alive
Internal communication monitoring
has determined a fault.
Please contact Service.
9002B Update End
Update successful notification.
An update was successfully
completed. The device will resume
normal operation.
9002C AntiIslandPhase
Shift
Islanding of the connected grid
section has been detected
Wait for the grid to become stable
again
9002D AntiIslandRocof
9002F
FFS is read-only Internal data can't be written
anymore.
Please contact Service.
90030
DC share too
high
The measured DC-Part in AC current
exceed the defined limit.
90031
ETH link lost
The Ethernet cable has been
removed
Check the Ethernet cable on the
device and the receiver (router,
switch) for a correct fit. If the
cables are correctly connected and
should the notification still be
there, please contact Service.
90032
Restart
The system has been rebooted.
Should these notifications occur
repeatedly during daily operation,
please contact Service.
90050
AC condition
AC switch on condition not fulfilled
Wait until the network is stable
90051
DC condition
DC switch on condition not fulfilled
Wait until the solar voltage is high
enough
90052
User lock active The inverter can't connect to the grid,
as the User-lock has been set.
Deactivate user lock
90053
Communication
SR
Internal communication problems
Fault is independently resolved
after a few minutes. If not, switch
device off and on again. If this does