SOFAR 7K~10.5KTLM-G3 User manual
Copyright © Shenzhen SOFAR SOLAR Co., Ltd
If an Earth Fault Alarm occurs, the fault will be displayed on the LCD screen,
the red light will be on, and the fault can be found in the history of the fault. For
the machine installed with Wi-Fi/GPRS, the alarm information can be seen on
the corresponding monitoring website, and can also be received by the APP on
the mobile phone.
Table 7-1 Event list
The grid voltage is too
high
If the alarm occurs occasionally, the
possible cause is that the electric grid
is abnormal occasionally. Inverter will
automatically return to normal
operating status when the electric
grid’s back to normal.
If the alarm occurs frequently, check
whether the grid voltage/frequency is
within the acceptable range. If yes,
please check the AC circuit breaker
and AC wiring of the inverter.
If the grid voltage/frequency is NOT
within the acceptable range and AC
wiring is correct, but the alarm occurs
repeatedly, contact technical support
to change the grid over-voltage,
under-voltage, over-frequency,
under-frequency protection points
after obtaining approval from the local
electrical grid operator.
The grid voltage is too
low
The grid frequency is
too high
The grid frequency is
too low
Internal faults of inverter, switch OFF
inverter, wait for 5 minutes, then
switch ON inverter. Check whether the
problem is solved.
If no, please contact technical support.
Transient overvoltage
of grid voltage 1
Transient overvoltage
of grid voltage 2
Power grid line voltage
error
Inverter voltage
overvoltage