SOFAR 3.3~12KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
Ensure the installation position and installation
method meet the requirements of this user
manual.
Check whether the ambient temperature of the
installation position exceeds the upper limit. If yes,
improve ventilation to decrease the temperature.
Check whether the inverter has dust and dust,
whether there are foreign matters blocking the fan
at the air inlet. If so, please improve the ventilation
and heat dissipation of the environment. It is
recommended that the inverter should be cleaned
once every half a year.
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 SOFARSOLAR; 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.
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.
Output overcurrent
hardwarepermanent
fault
Busovervoltagepermanen
t fault
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