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Under any condition! Make sure the maximum open circuit voltage (Voc)
of each PV string is less than 450Vdc for Growatt1500-US,500Vdc for
Growatt2000-US&Growatt3000-US.
Wiring step:
Do not connect strings with an open circuit voltage greater than the
Max. input voltage of the inverter. If the strings voltage exceeds the Max. input
voltage of the inverter, it can be destroyed due to overvoltage. All warranty
claims become void.
Check the design of the PV plant. The Max. open circuit voltage, which
can occur at solar panels ambient temperature of -10
, must not exceed the
Max. input voltage of the inverter.
Before connecting PV panels to DC terminals, please make sure the polarity is
correct. Incorrect polarity connection could permanently damage the unit.
Check short-circuit current of the PV string. The total short-circuit current of
the PV string should be less than the inverter's maximum DC current.
Connect the positive and negative terminals from the PV panel to positive (+)
terminals and negative (-) terminals on the Inverter. Each DC terminal on
Inverter can withstand 12Adc for 1500-US,14Adc for 2000-US, 17Adc for
3000-US.
High voltages exist when the PV panel is exposed to the sun. To reduce risk of
electric shock, avoid touching live components and treat connection terminals
carefully
1.Open the independent DC separate unit ,the DC switch on the Growatt -US
inverter and the AC separate unit.
2.Open the left hand side knock-out hole.
℃
3.installation rubber pipe into the knock-out hole and pull the pipe nut slightly, feed
the cables through the pipe into the wire box till the terminal.
4.connect the PV cables to the terminal correct.
Cable requirements
Product Model
Area(mm²)
AWG No.
Growatt1500-US
3.33~5.26
10~12
Growatt2000-US
3.33~5.26
10~12
Growatt3000-US
3.33~5.26
10~12
5.7 Commissioning Checking
Cover the wire box.
Close the DC separate unit and the DC switch on the inverter.
When the PV panels are connected and PV voltage is greater than 100 Vdc but the
AC grid is not yet connected, the message on the LCD display produce the
following messages in order: “Growatt Inverter”-> “Waiting” -> “No AC
connection”. The display repeats “No AC connection” and the LED will be red.
Setting grid model choice. See the chapter 6.2 “Setting the LCD display”.
Close the AC separate unit between inverter and grid. The normal operating
sequence begins.
Under normal operating conditions the LCD displays “Power: xxxx.xW”. That is
the power fed to the grid. The LED turns green.
This completes the check.
Содержание 1500-US
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