6 System Commissioning
6.1 Check Before Power-on
1. The inverter is installed correctly and securely.
2. Check that the DC switches and downstream AC output switch are OFF.
3. Check that all ground cables are connected securely and reliably.
4. All AC output power cables are connected correctly and securely, without
open circuits or short circuits.
5. All DC input power cables are connected correctly and securely, without open
circuits or short circuits.
6. The communications cable is connected correctly and securely.
7. Check that the maintenance compartment interior is clean and tidy, without
foreign matter.
8. The maintenance compartment door is closed and the door screws are
tightened.
9. Idle DC input terminals are sealed.
10. Idle USB ports are plugged with waterproof plugs.
6.2 System Power-On
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-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual 6 System Commissioning
Issue 07 (2021-07-08) Copyright © Huawei Technologies Co., Ltd. 51
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