Huawei SUN2000-43KTL-IN-C1 - Page 88

SUN2000-43KTL-IN-C1
User Manual
8 Maintenance
Issue 07 (2018-05-06)
Copyright © Huawei Technologies Co., Ltd.
82
Table 8-2 Common alarms and troubleshooting measures
Ala
rm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause
Suggestion
103
High DC
Input
Voltage
Major

Cause ID = 1
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 1 and 2, and
therefore the PV string
open-circuit voltage
exceeds the maximum
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
Reduce the number of PV modules
connected in series to PV strings 1 and 2
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 = 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.