Huawei SUN2000-33KTL-JP User Manual page 116

SUN2000-(33KTL, 40KTL)-JP
User Manual
Ala Alarm Alarm
rm Name Severit
ID y
106 Abnorma Warning
–11
l String
3 1–8
120 String Cause
–12
1–8 ID = 1:
7 Reversed Major
Cause
Issue 07 (2019-06-30)
Possible Cause
operating voltage of the
SUN2000.
 Cause ID = 2
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 3 and 4, and
therefore the PV string
open-circuit voltage
exceeds the maximum
operating voltage of the
SUN2000.

Cause ID = 3
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 5 and 6, and
therefore the PV string
open-circuit voltage
exceeds the maximum
operating voltage of the
SUN2000.
 Cause ID = 4
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 7 and 8, and
therefore the PV string
open-circuit voltage
exceeds the maximum
operating voltage of the
SUN2000.
Cause ID = 1
 The PV string is shielded
from sunlight for a long
time.

The PV string deteriorates
or is damaged.
 Cause ID = 1
The PV string is reversely
connected.
 Cause ID = 2
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Suggestion

Cause ID = 2
Reduce the number of PV modules
connected in series to PV strings 3 and 4
until the open-circuit voltage is less than or
equal to the maximum operating voltage of
the SUN2000. After the PV array
configuration is corrected, the inverter
alarm disappears.
 Cause ID = 3
Reduce the number of PV modules
connected in series to PV strings 5 and 6
until the open-circuit voltage is less than or
equal to the maximum operating voltage of
the SUN2000. After the PV array
configuration is corrected, the inverter
alarm disappears.
 Cause ID = 4
Reduce the number of PV modules
connected in series to PV strings 7 and 8
until the open-circuit voltage is less than or
equal to the maximum operating voltage of
the SUN2000. After the PV array
configuration is corrected, the inverter
alarm disappears.
1. Check whether the PV string current is
obviously lower than the currents of other
PV strings.
2. If yes, check whether the PV string is
shielded from sunlight.
3. If the PV string is clean and not shielded
from sunlight, check whether any PV
module is faulty.
 Cause ID = 1
Check whether the PV string is reversely
connected to the SUN2000. If yes, wait
until the solar irradiance declines at night
9 Maintenance
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