Troubleshooting - Huawei SUN2000-90KTL Series User Manual

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
Item
Cable
connections
Grounding
reliability

8.4 Troubleshooting

Alarm severities are defined as follows:
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●
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Issue 11 (2020-08-30)
Check Method
● 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
off.
● 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.
Check that ground cables are
securely connected.
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 affecting the grid-tied power
generation.
Warning: The inverter works properly. The output power decreases or some
authorization functions fail due to external factors.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Maintenance
Interval
The first inspection is
half a year after the
initial commissioning.
From then on,
perform the
inspection once six
months to a year.
The first inspection is
half a year after the
initial commissioning.
From then on,
perform the
inspection once six
months to a year.
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