MPP Solar MPI 12KW WP - Trouble Shooting; Warning List

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17. Trouble Shooting
When there is no information displayed in the LCD, please check if PV
module/battery/grid connection is correctly connected.
NOTE: The warning and fault information can be recorded by remote monitoring
software.
17-1. Warning List
There are 20 situations defined as warnings. When a warning situation occurs, icon
will flash and will display warning code. If there are several codes, it will
display in sequences. Please contact your installer when you couldn’t handle with the
warning situations.
Code
Warning Event
Icon
(flashing)
Description
01
Line voltage high loss
Grid voltage is too high.
02
Line voltage low loss
Grid voltage is too low.
03
Line frequency high loss
Grid frequency is too high.
04
Line frequency low loss
Grid frequency is too low.
05
Line voltage loss for
long time
Grid voltage is higher than 253V.
06
Ground Loss
Ground wire is not detected.
07
Island detect
Island operation is detected.
08
Line waveform loss
The waveform of grid is not suitable
for inverter.
09
Line phase loss
The phase of grid is not in right
sequence.
10
EPO detected
EPO is open.
11
Overload
Load exceeds rating value.
12
Over temperature
The temperature is too high inside.
13
Batter voltage low
Battery discharges to low alarm
point.
14
Battery under-voltage
when grid is loss
Battery discharges to shutdown
point.
15
Battery open
Battery is unconnected or too low.
16
Battery under-voltage
when grid is OK
Battery stops discharging when the
grid is OK.
17
Solar over voltage
PV voltage is too high.
b1
Stop discharging battery
Informs inverter to stop discharging
battery.
b2
Stop charging battery
Informs inverter to stop charging
battery
b3
Charge battery
Informs inverter to charge battery.