5 Operation
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Display message Description Cause and possible remedies
103:AFI>30mA
105:AFI>60mA
106:AFI>150mA
Your Solar Inverter is equipped with a
universally sensitive AFI according to DIN
VDE 0126-1-1. This monitoring device has
detected a relative residual current jump.
A residual current jump has occurred
during operation of the Solar Inverter.
· Check your PV system for possible
insulation faults.
104:AFI>0.3A Your Solar Inverter is equipped with a
universally sensitive AFI according to DIN
VDE 0126-1-1. This monitoring device has
detected an absolute fault current of
> 300 mA.
A residual current has occurred during
operation of the Solar Inverter.
· Check your PV system for possible
insulation faults.
AC network fault
201:Surge e. Your Solar Inverter continually moni-
tors the quality of the AC grid. During
high voltage peaks on the phase feeding
in, the Solar Inverter stops feeding and
attempts a restart.
The Solar Inverter has detected a high
voltage peak on the phase feeding in.
· After malfunction elimination the
Solar Inverter restarts automatically.
Should the error occur frequently,
please contact your power supply
company.
A monitoring phase and a directly
earthed conductor were exchanged
when connecting the AC side.
202:UAC1>10% Your Solar Inverter continually monitors
the voltage level of the phase feeding
in. If the maximum permissible limit is
exceeded, the Solar Inverter stops feed-
ing and does not start up again until the
voltage value drops below the maximum
permissible limit.
The cable cross-section in the AC sup-
ply line to the solar inverter is too small.
Your inverter feeds into a spur line,
which is insufficiently dimensioned.
· Check the design of your grid connec-
tion (energy meter) or the grid feed
point to your power supply company
(PSC).
· Ask your power supply company (PSC)
about grid stability and design.
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