Huawei SUN2000-29.9KTL - Page 93

SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL)
User Manual
8 Maintenance
Issue 11 (2019-06-08)
Copyright © Huawei Technologies Co., Ltd.
86
Alarm ID
Alarm
Name
Alarm
Severity
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
value of the inverter MPPT
voltage.

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
value of the inverter MPPT
voltage.

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
value of the inverter MPPT
voltage.

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
value of the inverter MPPT
voltage.

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 inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 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 inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 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 inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 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 inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 alarm disappears.