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
When LED2 is steady green (meaning that the inverter is grid-tied), do not turn on
any DC switch. Otherwise, the inverter may be damaged because the insulation
resistance is not detected.
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual 6 Commissioning
Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd. 69
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