Huawei SUN2000 Series User Manual page 71

SUN2000-(12KTL-25KTL)-M5 Series
User Manual
Alarm Alarm
ID Name
2080 Abnorma
l PV
module
configura
tion
Issue 01 (2022-06-15)
Alarm Possible Causes
Severity
Major ● Cause ID = 2
The PV string
power or the
number of
optimizers
connected in
series in a PV
string exceeds
the upper
threshold.
● Cause ID = 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.
● Cause ID = 6
Under the same
MPPT, the
number of
optimizers
connected in
series in PV
strings
connected in
parallel is
different, or the
output of some
optimizers in PV
strings is
reversely
connected.
● Cause ID = 7
The optimizer
installation
position is
changed, or PV
strings are
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Troubleshooting
Check whether the total number of PV
modules, number of PV modules in a PV
string, and number of PV strings meet
requirements and whether the PV
module output is reversely connected.
● Cause ID 2: Check whether the PV
string power or the number of PV
strings connected in series exceeds
the upper threshold.
● Cause ID 3:
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).
● Cause ID 6:
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).
● Cause ID 7: When the sunlight is
normal, perform the optimizer search
function again.
● Cause ID 8: When the sunlight is
normal, perform the optimizer search
function again.
● Cause ID 9: Calculate the PV string
voltage based on the number of PV
modules in the string and check
whether the string voltage exceeds
the upper threshold of the inverter
input voltage.
8 Maintenance
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