Check Item Check Method Maintenance
Interval
Grounding
reliability
Check that ground cables are securely
connected.
The rst inspection is
6 months after the
initial
commissioning.
From then on, the
interval can be 6 to
12 months.
Air tightness Check that all terminals and ports are
properly sealed.
Once a year
Clear
vegetation
around the
inverters
● Perform inspection and weeding as
required.
● Clean the site promptly after
weeding.
Based on the local
wilting season
8.3 Troubleshooting
Alarm severities are dened as follows:
● Major: The inverter is faulty. As a result, the output power decreases or the
grid-tied power generation is stopped.
● Minor: Some components are faulty without
aecting the grid-tied power
generation.
● Warning: The inverter works properly. The output power decreases or some
authorization functions fail due to external factors.
SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual 8 Maintenance
Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd. 72
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