Huawei SUN2000-90KTL Series User Manual

Item Check Method Maintenance
Interval
Cable
connections
● Check that cables are securely
connected.
● If clamps are used for AC cable
connections, check that they are
secured with a torque of 35
N·m.
● Check that cables are intact, in
particular, the parts touching
the metallic surface are not
scratched.
● Check whether the sealing caps
of idle DC input terminals fall
o.
● Check that the cover on the USB
port is tightened.
● Check that idle RESERVE and
COM waterproof connectors are
plugged and the locking caps
are tightened.
The rst 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 rst inspection is
half a year after the
initial commissioning.
From then on,
perform the
inspection once six
months to a year.
8.4 Troubleshooting
Alarm severities are dened 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
aecting the grid-tied power
generation.
● Warning: The inverter works properly. The output power decreases or some
authorization functions fail due to external factors.
SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
8 Maintenance
Issue 11 (2020-08-30) Copyright © Huawei Technologies Co., Ltd. 99

Huawei SUN2000-90KTL Series Specifications

General

Brand	Huawei
Model	SUN2000-90KTL Series
Category	Inverter
Language	English