Huawei SUN2000-100KTL Series User Manual

Table 8-2 Common alarms and troubleshooting measures
Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Causes Suggestions
2001 High
String
Input
Voltage
Major ● Cause ID = 1: PV1 and PV2
● Cause ID = 2: PV3 and PV4
● Cause ID = 3: PV5 and PV6
● Cause ID = 4: PV7 and PV8
● Cause ID = 5: PV9 and PV10
● Cause ID = 6: PV11 and PV12
● Cause ID = 7: PV13 and PV14
● Cause ID = 8: PV15 and PV16
● Cause ID = 9: PV17 and PV18
● Cause ID = 10: PV19 and PV20
The PV array is not properly
congured. Excessive PV modules
are connected in series to a PV
string, and therefore the PV string
open-circuit voltage exceeds the
maximum operating voltage of
the solar inverter.
Reduce the number of PV
modules connected in series
in the PV string until the PV
string open-circuit voltage is
not greater than the
maximum operating voltage
of the solar inverter. After the
PV array
conguration is
corrected, the alarm
disappears.
2002 DC arc
fault
Major ● Cause ID = 1: PV1 and PV2
● Cause ID = 2: PV3 and PV4
● Cause ID = 3: PV5 and PV6
● Cause ID = 4: PV7 and PV8
● Cause ID = 5: PV9 and PV10
● Cause ID = 6: PV11 and PV12
● Cause ID = 7: PV13 and PV14
● Cause ID = 8: PV15 and PV16
● Cause ID = 9: PV17 and PV18
● Cause ID = 10: PV19 and PV20
The PV string power cables arc or
are in poor contact.
Check whether the PV string
cables arc or are in poor
contact.
2011 String
Reverse
Connect
ion
Major Cause ID = 1–20: PV1–PV20
The PV string is reversely
connected.
Check whether the PV string
is reversely connected to the
solar inverter. If yes, wait until
the solar irradiance declines
at night and the PV string
current drops below 0.5 A.
Then, turn
o the DC switches
and correct the PV string
connection.
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 109

Huawei SUN2000-100KTL Series Specifications

General

Brand	Huawei
Model	SUN2000-100KTL Series
Category	Inverter
Language	English