23
Situation
Solution
Fault
Code
Fault Event
Icon
(flashing)
15
Line value consistent fail
between MCU & DSP
1.
Please disconnect AC breaker
first and then disconnect DC
breaker.
2.
After LCD screen is
completely off, turn on DC
breaker. Until it shows “No
Utility” in LCD display, turn
on AC breaker. After 60
seconds, the system will
automatically connect to the
grid.
3.
If error message remains,
please contact your installer.
17
Connection failure between
MCU & DSP
18
Communication failure
between MCU & DSP
19
Ground loss
1.
Check if the inverter is
connected to the ground.
2.
If ground is properly
connected and the error
message remains, please
contact your installer.
22
Grid voltage loss
1.
Grid loss is detected or grid
input is not within
acceptable range.
2.
If grid is ok but the error still
remains, please contact
your installer.
23
Grid frequency loss
24
Islanding is detected.
Grid is abnormal. Please wait for
grid to return.
No display in LCD screen.
1.
Check input voltage of PV
modules.
2.
If input voltage is higher
than 150VDC, please
contact your installer.
Time display in LCD screen changes quickly or
slowly.
1.
Please calibrate the timer
via software.
2.
If the problem remains after
calibration, please contact
your installer.
Inverter is turned on and turned off in turns.
1.
It’s normal situation due to
insufficient radiation in the
short-term time.