Huawei SUN2000-4.95KTL-JPL1 User Manual

Alarm
ID
Alarm Name Alarm
Severity
Possible Causes Troubleshooting
2003 DC Arc Fault Major The PV string power cables
arc or are in poor contact.
(string-level ne detection)
● Cause ID 1: PV string 1
● Cause ID 2: PV string 2
● Cause ID 3: PV string 3
Check whether the string
cables arc or are in poor
contact.
2011 String Reversed Major The PV string is reversely
connected.
Cause ID = 1, 2
● Cause ID 1: PV1 is
reversely connected.
● Cause ID 2: PV2 is
reversely connected.
Check whether the PV
string is reversely
connected to the SUN2000.
If yes, wait until the PV
string current decreases
below 0.5 A, set DC switch
to OFF, and adjust the PV
string polarity.
2012 String Current
Backfeed
Warning The number of PV modules
connected in series to the
PV string is insucient. As
a result, the end voltage is
lower than that of other
strings.
Cause ID 1–4: PV strings 1–
4
1. Check whether the
number of PV modules
connected in series to
this PV string is less than
the number of PV
modules connected in
series to the other PV
strings connected in
parallel with this PV
string. If yes, wait until
the PV string current
drops below 0.5 A, set
the DC switch to OFF,
and adjust the number
of PV modules in the PV
string.
2. Check whether the PV
string is shaded.
3. Check whether the
open-circuit voltage of
the PV string is normal.
SUN2000-4.95KTL-JPL1
User Manual 8 Maintenance
Issue 05 (2023-02-17) Copyright © Huawei Technologies Co., Ltd. 72

Huawei SUN2000-4.95KTL-JPL1 Specifications

General

Brand	Huawei
Model	SUN2000-4.95KTL-JPL1
Category	Inverter
Language	English