SUN2000-(30KTL-A, 33KTL, 40KTL)
User Manual
8 System Maintenance
Issue 04 (2016-06-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
83
Item
Check Method
Maintenance Interval
Cable
connections
Check that cables are securely
connected.
Check that cables are intact, in
particular, the parts touching the
metallic surface are not scratched.
Check that the idle COM and USB
ports are locked by waterproof caps.
The first inspection is
half a year after the
initial commissioning.
From then on, perform
the inspection once six
months to a year.
Grounding
reliability
Check that ground cables are securely
connected.
The first inspection is
half a year after the
initial commissioning.
From then on, perform
the inspection once six
months to a year.
8.2 Troubleshooting
Alarm severities are defined as follows:
Major: The inverter enters the shutdown mode and disconnects from the power grid to
stop generating electricity after a fault occurs.
Minor: Some components are faulty but the inverter can still generate electricity.
Warning: The inverter output power decreases due to external factors.