Huawei SUN2000-28KTL User Manual page 123

SUN2000 (8KTL-28KTL)
User Manual
Alarm ID Name
326 Abnormal
Grounding
400 System
Fault
410 Abnormal
Auxiliary
Power
504 Version
Mismatch
505 Firmware
Upgrade
Failed
61440 Flash Fault
Issue 12 (2019-06-30)
Severity Causes
ventilation.
 The ambient temperature is
too high.
 The internal fan is not
working.
Major Cause ID = 1

The neutral wire or PGND
cable is not connected to
the SUN2000.
 The isolation transformer is
not connected to the
SUN2000 at the output side
when the PV strings are
grounded.
Major Cause ID = 1/3/21/23/27
An unrecoverable fault has
occurred on a circuit inside the
SUN2000.
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.
Minor Cause ID = 1/2/3
The version of the software
loaded during a software
upgrade is incorrect.
Major Cause ID = 1
The upgrade is incomplete.
Minor Cause ID = 1
 There is insufficient space
on the flash drive.

The flash drive has bad
blocks or is faulty.
Copyright © Huawei Technologies Co., Ltd.
Measures
ambient temperature exceeds the
upper threshold, improve the
ventilation and heat dissipation.
3. If the ventilation and ambient
temperature both meet
requirements, contact Huawei
technical support.
1. Check that the neutral wire and
PGND cable are properly
connected.
2. If the PV string output is
grounded, check that the
SUN2000 output side connects to
an isolation transformer.
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.
1. When the alarm is generated, the
SUN2000 shuts down
automatically. When the fault is
rectified, the SUN2000 starts
automatically.
2. If the alarm occurs repeatedly,
contact Huawei technical
support.
Check whether a recent software
upgrade has been performed. If so,
upgrade the software again to the
correct version.
Upgrade again.
1. Replace the monitoring board.
2. If the monitoring board is built
into the monitoring device,
replace the monitoring device.
8 Maintenance
116