16. Troubleshooting
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16. Trouble Shooting
When there is no information displayed in the LCD, please check if PV modules are correctly
connected.
NOTE:
The warning and fault information can be recorded by remote monitoring software.
16-1. Warning List
When a warning situation occurs,
icon will flash and the fault code area will display
“WR” wordings. You may check software for the detailed warning situations. Please contact
your installer when below warning situations occur.
Warning
Icon
(flashing)
Description
CPU is performing the auto-
correction of AD signals.
Sampling adjustment is in process in DSP.
Data saving failure.
Flash memory fails.
PV Input is not acceptable.
The PV input voltage is out of range.
PV input voltage reads low.
The PV voltage is too low to start the inverter.
Power island
Islanding condition detected.
An Error occurred in the CPU
initialization
Initialization failed in CPU as the inverter is
turned on.
Power grid voltage exceeds
the upper threshold
The grid voltage has exceeded the upper limit.
Power grid voltage falls below
the lower threshold
The grid voltage is below the lower limit.
Power grid frequency
exceeds the upper threshold
The grid frequency has exceeded the upper
limit.
Power grid frequency is
below the lower threshold
The grid frequency is below the lower limit.
Power grid-connected
average voltage exceeds the
maximum threshold
Average feeding voltage has exceeded the
upper limit
Emergency grid disconnection
The utility is abnormal.
Battery voltage is too low.
The battery voltage is less than 42V.
Low battery
Battery voltage is less than 25% of battery
capacity or the battery voltage less than 44V.
Battery is disconnected.
Battery cannot be detected.
