System Diagram - Growatt Grid Installation & Operation Manual

C
When you need to select any of these countries, you can Double knock to
enter the next interface. Here we select Italy as an example, as Fig 2-5-3.
D
When the country arrives at Italy, Double knock to enter the two options
'YES' and 'NO', and the cursor stays at 'NO' in default, as Fig 2-5-4.
E
Single knock to select 'YES', as Fig 2-5-5.
F
Double knock to confirm your selection, LCD will display 'Select OK' with
the country name in the below, as Fig 2-5-6.
Note: if you still single knock at the interface as Fig 2-5-5, the cursor will
go to 'NO' again as Fig 2-5-4, then if you double knock, the display will
switch to the interface as Fig 2-5-3.
8
Fig 2-5-3
Fig 2-5-4
Fig 2-5-5
Fig 2-5-6
G
When the selection is successful, the inverter will reboot automatically.
Note: If you have selected and confirmed an unwanted country
neglectful, please contact Growatt for specific software to clear and reset
again.
2.5.2 Commissioning
After the inverter reboot, LCD will produce the following messages in order:
'Ser NO: xxx'->'xxxxx'->'FW version'->'Waiting'->'No AC connection', the
display repeats 'NO Utility' and LED will be red.
Close the AC breaker or fuse between PV-Inverter and grid. Turn on the DC
switch. The normal operating sequence begins.
Under normal operating conditions the LCD displays 'Power: xxx.x W'. That is
the power fed to the grid. The LED turns green.
This completes the check.

2.6 System diagram

A
PV Panel: Provide DC power to inverter.
B
Converts DC (Direct Current) power from PV panel (s) to AC (Alternating
Current) power. Because Inverter is grid-connected it controls the current
amplitude according to the PV Panel power supply. Inverter always tries to
convert the maximum power from your PV panel(s).
9