SUN2000-(55KTL, 60KTL) Series
User Manual
8 System Maintenance
Issue 06 (2020-01-03)
Copyright © Huawei Technologies Co., Ltd.
103
Alarm ID Alarm
Name
Alarm
Severity
Possible Cause
Suggestion
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
inverter shuts down
automatically. When the fault is
rectified, the inverter starts
automatically.
2.
If the alarm persists, contact
Huawei technical support.
413
Abnormal
PV String
Connectio
n
Major
Cause ID = 1
The PV string does not
properly connect to the MPPT1
circuit.
Cause ID = 2
The PV string does not
properly connect to the MPPT2
circuit.
Cause ID = 3
The PV string does not
properly connect to the MPPT3
circuit.
Cause ID = 4
The PV string does not
properly connect to the MPPT4
circuit.
Check the PV string for reverse
connection and cross connection.
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.
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.
If you cannot rectify faults with the measures listed in the preceding table, contact Huawei technical
support.