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Start-Up and shut down the inverter
7.1 Start-Up the inverter
1.Turn on the AC grid breaker;
2.Turn on the DC switch of the inverter, and the inverter will start automatically when
the input voltage is higher than 300V.
7.2 Shut down the Inverter
1.Turn off the AC grid breaker;
2.Turn off the DC switch of the inverter.
3.Check the inverter operating state.
4.Until the display of LCD goes out, the inverter is shut down.
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Maintenance and Cleaning
Once the output power is derating because of too high warming, some tips can help
you solve such problems:
The air grills or cooling fans are clogged. To clean the air grills and cooling fans
please refer to 8.1 Cleaning Fans and Grills.
One or two cooling fans failed. To exchange the cooling fans please refer to 8.2
Exchanging Fans.
Ventilation of installation location is poor. Choose appropriate installation
location before mounting.
8.1 Cleaning Fans and Grills
Maintain fans and grills every half a year to reduce the power derating caused by
excessive heat.
If fans or grills are just covered by soft dust particles, using tools such as vacuum
cleaner to clean the fans. And if user has no such tools or there are obstructions in
fans, grills or the cooling area of inverter, you need to clean the fans and grills after
they are took apart from the inverter.
Note: There are two types of fan structure:
Fan type 1 cleaning procedure:
1. Before cleaning, please disconnect the DC and AC connection.
Turn off the DC switch.
Disconnect the DC terminal. (You might need some tool to disconnect the male
and female terminals)
Disconnect the AC terminal.
2. Remove the protecting plants at the bottom of UE inverter.
Remove the inverter from mounting bracket, and place inverter horizontally on
clean and dry place.
First of all you should remove the protection planes at the bottom of UE inverters.
Use screwdrivers counterclockwise rotate the screws as figures shown below.
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