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Usually, there are three states during operation:
Waiting:
When the initial voltage of the strings is greater than the minimum DC input
voltage but lower than the start-up DC input voltage, the inverter is waiting for
sufficient DC input voltage and cannot feed power into the grid.
Checking:
When the initial voltage of the strings exceeds the start-up DC input
voltage, the inverter will check feeding conditions at once. If there is anything wrong
during checking, the inverter will switch to the “Fault” mode.
Normal:
After checking, the inverter will switch to “Normal” state and feed power into
the grid.
During periods of low radiation, the inverter may continuously start up and shut down.
This is due to insufficient power generated by the PV array.
If this fault occurs often, please call service.
If the inverter is in "Fault" mode, refer to Section 11 "Troubleshooting".
The information provided here covers the LED indicators.
7.5 Overview of the panel
The inverter is equipped with three LEDs indicators “green”, “blue” and “red” which
provide information about the various operating states.
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