Huawei SUN3KTL-L1 User Manual

Alarm
ID
Alarm Name Alarm
Severity
Possible Causes Troubleshooting
2080 Abnormal PV
Module
Conguration
Major PV module conguration
does not meet
requirements, or the PV
module output is reversely
connected or short-
circuited.
Cause ID = 2, 3, 6, 7, 8, 9
● 2: The PV string power
or the number of
optimizers connected in
series in a PV string
exceeds the upper
threshold.
● 3: The number of
optimizers connected in
series in a PV string is
less than the lower
threshold, the PV string
output is reversely
connected, or the output
of some optimizers in
the PV string is reversely
connected.
● 6: Under the same
MPPT, the number of
optimizers connected in
series in PV strings
connected in parallel is
dierent, or the output
of some optimizers in PV
strings is reversely
connected.
● 7: The optimizer
installation position is
changed, or PV strings
are combined or
exchanged.
● 8: The sunlight is weak
or changes abnormally.
● 9: In partial
conguration scenarios,
the PV string voltage
exceeds the inverter
input voltage
specications.
Check whether the total
number of PV modules,
number of PV modules in a
string, and number of PV
strings meet requirements
and whether the PV
module output is reversely
connected.
● ID2: Check whether the
PV string power or the
number of PV modules
connected in series in
the PV string exceeds
the upper threshold.
● ID3:
1. Check whether the
number of optimizers
connected in series in
the PV string is below
the lower threshold.
2. Check whether the PV
string output is reversely
connected.
3. Check whether the PV
string output is
disconnected.
4. Check whether the
optimizer output
extension cable is
correct (positive
connector at one end
and negative connector
at the other).
● ID6:
1. Check whether the
number of optimizers
connected in series in
the PV strings connected
in parallel under the
same MPPT is the same.
2. Check whether the
optimizer output
extension cable is
correct (positive
connector at one end
and negative connector
at the other).
SUN2000-(2KTL-6KTL)-L1
User Manual 8 System Maintenance
Issue 04 (2021-04-01) Copyright © Huawei Technologies Co., Ltd. 93

Huawei SUN3KTL-L1 Specifications

General

Brand	Huawei
Model	SUN3KTL-L1
Category	Inverter
Language	English