Huawei SUN2000 Series User Manual page 100

SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL)
User Manual
Alarm ID Alarm
Name
411 AFCI
Self-Chec
k Failure
DC Arc
412
Fault
Software
504
Version
Unmatch
Upgrade
505
Failed
506 License
Expired
Flash
61440
Fault
Issue 11 (2019-06-08)
Alarm Possible Cause
Severity
Major Cause ID = 1/2/3
AFCI check fails.
Major Cause ID = 1/2/3/4
The PV string cable is in poor
contact or with open circuits.
Minor Cause ID = 1/2/3
During inverter software
upgrade, the version of the
software loaded is incorrect.
Major Cause ID = 1
The upgrade does not end
normally.
Warning Cause ID = 1
1. The license has entered its
grace period.
2. The license will expire
soon.
Minor Cause ID = 1
 The flash memory is
insufficient.
 The flash memory has bad
sectors.
If you cannot rectify faults with the measures listed in the preceding table, contact Huawei technical
support.
Copyright © Huawei Technologies Co., Ltd.
Suggestion
1. Turn off the AC output switch
and DC input switch. Then turn
on the AC output switch and DC
input switch after 5 minutes. If
the fault persists, contact Huawei
technical support.
2. Disable the AFCI function if you
are sure not to use it.
Check whether the PV string cable is
in poor contact or with open circuits.
If yes, reconnect the cable.
Check whether you have performed
a software upgrade recently. If yes,
upgrade the software to the correct
version again.
Perform the upgrade again.
1. Apply for a license.
2. Load the new license.
1. Replace the monitoring board.
2. If the monitoring board is built
into the monitoring device,
replace the monitoring device.
8 Maintenance
93