SOFAR 1.1K~3.3KTL-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
input voltage range of inverter. inverter
automatically returns to normal operating status
after correct adjustments.
Input current is not
balanced
Check the input mode(parallel mode/
independent mode) setting of inverter according
to Section 6.3 (C) 6.Input Mode of this user
manual, If it’s incorrect, change it according to
Section 6.3 (A) 10.Set Input mode of this
manual.
If the fault occurs occasionally, the possible
cause is that the external circuits are abnormal
occasionally. inverter automatically returns to
normal operating status after the fault is rectified.
If the fault occurs frequently and lasts a long
time, check whether the insulation resistance
between the PV array and earth(ground) is too
low, then check the insulation conditions of PV
cable.
The input current is
too high , and has
happen hardware
protection
Check whether the input current is higher
than the maximum input current of inverters,
then check the input wiring, if both are correct,
please contact technical support.
The grid current is
too high , and has
happen hardware
protection
ID15-ID24 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. Ifno, please contact
technical support.
The grid current is
too high
The grid current
sampling error
The grid voltage
sampling error
The auxiliary
voltage error
The bus voltage
sampling error
The Output current
is not balanced
The bus voltage Is
too low
If the PV array configuration is correct (no
ID05 fault), the possible cause is that the solar
irradiance is too low. inverter automatically
returns to normal operating status after the solar
irradiance returns to normal level.
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