SUN2000-(33KTL, 36KTL, 40KTL)-US
User Manual
8 Maintenance
Issue 07 (2019-06-20)
Copyright © Huawei Technologies Co., Ltd.
108
Alarm ID Alarm
Name
Alarm
Severity
Possible Cause
Suggestion
persists, contact Huawei technical
support.
410
Abnormal
Auxiliary
Power
Major
Cause ID = 4
The sampling control board has
an abnormal voltage, which
may be caused by the
following:
The internal power chip of
the sampling control board
is faulty.
The detection circuit
becomes faulty.
1.
When the alarm is generated, the
SUN2000 shuts down
automatically. When the fault is
rectified, the SUN2000 starts
automatically.
2.
If the alarm persists, contact
Huawei technical support.
411
AFCI
Self-Chec
k Failure
Major
Cause ID = 1/2/3
AFCI check fails.
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.
412
DC Arc
Fault
Major
Cause ID = 1/2/3/4
The PV string cable is in poor
contact or with open circuits.
Check whether the PV string cable is
in poor contact or with open circuits.
If yes, reconnect the cable.
504
Software
Version
Unmatch
Minor
Cause ID = 1/2/3
During inverter software
upgrade, the version of the
software loaded is incorrect.
Check whether you have performed
a software upgrade recently. If yes,
upgrade the software to the correct
version again.
505
Upgrade
Failed
Major
Cause ID = 1
The upgrade does not end
normally.
Perform the upgrade again.
506
License
Expired
Warning
Cause ID = 1
1.
The license has entered its
grace period.
2.
The license will expire
soon.
1.
Apply for a license.
2.
Load the new license.
61440
Flash
Fault
Minor
Cause ID = 1
The flash memory is
insufficient.
The flash memory has bad
sectors.
1.
Replace the monitoring board.
2.
If the monitoring board is built
into the monitoring device,
replace the monitoring device.