Huawei SUN2000-50KTL-ZHM3 User Manual page 81

SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual
Table 8-2 Common fault alarm list
ID Name
2001 High
string
input
voltage
2002 DC arc
fault
2003 DC arc
fault
Issue 05 (2023-02-28)
Severity Cause
Major The PV array is not
properly configured.
Excessive PV modules are
connected in series to the
PV string, and therefore the
PV string open-circuit
voltage exceeds the
maximum inverter
operating voltage.
● Cause ID 1: PV strings 1
and 2
● Cause ID 2: PV strings 3
and 4
● Cause ID 3: PV strings 5
and 6
● Cause ID 4: PV strings 7
and 8
Major The PV string power cables
arc or are in poor contact.
● Cause ID 1: PV strings 1
and 2
● Cause ID 2: PV strings 3
and 4
● Cause ID 3: PV strings 5
and 6
● Cause ID 4: PV strings 7
and 8
Major The PV string power cables
arc or are in poor contact.
Cause ID 1–8: PV strings 1–
8
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Solution
Reduce the number of PV
modules connected in series to
the PV string until the PV string
open-circuit voltage is less than
or equal to the maximum
inverter operating voltage. After
the PV string configuration is
corrected, the alarm disappears.
Check whether the PV string
cables arc or are in poor contact.
Check whether the PV string
cables arc or are in poor contact.
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