Installation and Operating Instructions V01
41
Fault
3
Rly-Check Fault
Output relay has failed.
2
EEPROM R/W
Fault
Reading or writing of EEPROM fails
44
DC Inj. differs for
M-S
A different value of DC feed-in has been
detected by the master and slave MCU.
43
Ground I differs
for M-S
A different value of residual current has
been detected by the master and slave
MCU.
42
Fac differs for
M-S
A different value of grid frequency has been
detected by the master and slave MCU.
41
Vac differs for
M-S
A different value of grid voltage has been
detected by the master and slave MCU.
45
Fac,Vac differs for
M-S
A different value of grid frequency and
voltage has been detected by the master
and slave MCU.
38
ISO Fault
The PV array’s insulation resistance to
ground is below the permitted value, or the
electrical insulation inside the inverter has
failed.
1
SCI Fault
Communication between the master and
slave CPU has failed.
10
Device Fault
Unknown Error
The last 5 dated failure reports on the NS protection can be read. An interruption in
the supply voltage of ≤ 3s does not result in any loss of failure reports (
according
to VDE-AR-N 4105).
