REFUSOL 20K-2T - Page 67

REFUsol 20K-2T (853P020.200)
User manual
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ID114
FreqDerating
Frequency
derating
If it occurs frequently, please check
whether the grid voltage and grid
frequency are within the allowable
range of the inverter; if not, please
contact the customer service of REFU
ELEKTRONIK; if yes, please check
whether the connection between the
circuit breaker at the AC side and the
output cable is normal; if the grid
voltage and grid frequency are within
the allowable range of the inverter,
and the AC side wiring is confirmed
to be correct, the alarm still appears
frequently With the approval of the
local power operator, please contact
the customer service of new energy
of Capital Airlines to modify the
protection points of over / under
voltage and over / under frequency
of inverter grid.
ID115
FreqLoading
Frequency
loading
ID116
VoltDerating
Voltage derating
ID117
VoltLoading
Volatge loading
ID121
SpdFail(DC)
Surge Protection
Device fault (DC
side)
There are internal faults of inverter,
turn OFF the “DC switch”, wait for 5
minutes, then turn ON the “DC
switch”. Check whether the fault is
rectified. If no, please contact
technical support.
ID122
SpdFail(AC)
Surge Protection
Device fault (AC
side)
ID123
Reserved
Reserved
ID124
Reserved
Reserved
ID125
Reserved
Reserved
ID129
unrecoverHwAc
OCP
Output
overcurrent
hardwareperman
ent fault
ID130
unrecoverBusOV
P
Busovervoltagepe
rmanent fault
ID131
unrecoverHwBus
Busovervoltage
There are internal faults of inverter,