REFU REFUsol 100K - Page 52

Troubleshooting52
Error List
REFUsol 100K
982059/02
2020-11
90006
Grid overvoltage At least one grid phase exceeds the configured
overvoltage limit value for the configured du-
ration.
▸Measure the voltage of all three phases
with REFUset and a True-RMS meter.
▸Check the configured voltage limit and the
configured nominal voltage.
90007
Grid undervoltage At least one grid phase falls below the config-
ured undervoltage limit value for the config-
ured duration.
90008
Overfrequency The grid frequency exceeds the configured
limit value for the configured duration.
▸Measure the voltage of all three phases
with REFUset and a True-RMS meter.
▸Check the configured frequency limit and
the configured nominal frequency.
90009
Underfrequency The grid frequency falls below the configured
limit value for the configured duration.
9000B
DC link 1 The device has disconnected from the grid due
to an imbalance in the internal DC voltage and
is switched on again briefly.
▸If this error occurs more than once, contact
REFU Service.
90011
DC link 6 The device has disconnected from the grid due
to a DC overvoltage in the input of the inverter.
As soon as the measured open-circuit voltage
is below the permitted limit value, the device
switches on again automatically.
▸Check the DC voltage of the solar genera-
tor. The voltage must be below 1 000 VDC
for connection. The maximum DC open cir-
cuit voltage must not exceed 1 100 VDC.
90013
RCD Fail The all-current sensitive residual current
measurement has measured a relative or ab-
solute exceedance of the set limit value.
▸Check measured value or limit value in RE-
FUset.
▸Check the installation of the inverter.
▸Check PE connection.
▸Check for faulty cables (e.g. damaged insu-
lation).
▸Check solar generator installation.
Error Code Message Description Instructions