Huawei SUN600-5KTL-L0 User Manual page 85

SUN600-(5KTL, 6KTL)-L0
User Manual
Alarm Alarm Name
ID
2003 DC Arc Fault
2011 String Reversed
2021 AFCI Check
Failure
2032 Grid Failure
Issue 04 (2023-02-17)
Alarm Possible Causes
Severity
Major The PV string power cables
arc or are in poor contact.
● Cause ID 1 = PV1
● Cause ID 2 = PV2
Major The PV string is reversely
connected.
Cause ID = 1, 2
● 1: PV1 is reversely
connected.
● 2: PV2 is reversely
connected.
Major The AFCI check fails.
Cause ID = 1, 2
● 1: The AFCI check circuit
is abnormal.
● 2: The AFCI circuit is
faulty.
Major Cause ID = 1
● The power grid
experiences an outage.
● The AC circuit is
disconnected or the AC
circuit breaker is OFF.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
Check whether the string
cables arc or are in poor
contact.
Check whether the PV
string is reversely
connected to the inverter. If
yes, wait until the PV string
current decreases below 0.5
A, set DC switch to OFF,
and adjust the PV string
polarity.
Turn off the AC output
switch and DC input switch,
and then turn them on
after 5 minutes. If the fault
persists, contact your
dealer.
1. Check the AC voltage.
2. Check whether the AC
circuit is disconnected or
the AC circuit breaker is
OFF.
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