6 Commissioning
6.1 Check Before Power-on
No. Acceptance Criteria
1 The solar inverter is installed correctly and securely.
2 The DC switches and the downstream AC switch are OFF.
3 All cables are connected correctly and securely.
4 Unused terminals and ports are locked by waterproof caps.
5 The installation space is proper, and the installation environment
is clean and tidy.
6 The maintenance compartment door is closed and the door
screws are tightened.
6.2 Powering On the SUN2000
Precautions
● Before turning on the AC switch between the SUN2000 and the power grid, use
a multimeter set to the AC position to check that the AC voltage is within the
specied range.
● If the solar inverter has been stored for more than two years, it must be
checked and tested by professionals before being put into use.
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 6 Commissioning
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 69
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