Huawei SUN2000-55KTL Series User Manual page 109

SUN2000-(55KTL, 60KTL) Series
User Manual
Alarm ID Alarm
Name
410 Abnormal
Auxiliary
Power
413 Abnormal
PV String
Connectio
n
504 Software
Version
Unmatch
505 Upgrade
Failed
61440 Flash
Fault
Issue 06 (2020-01-03)
Alarm Possible Cause
Severity
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.
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.
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.
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.
8 System Maintenance
Suggestion
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.
Check the PV string for reverse
connection and cross connection.
Check whether you have performed a
software upgrade recently. If yes,
upgrade the software to the correct
version again.
Perform the upgrade again.
1. Replace the monitoring board.
2. If the monitoring board is built
into the monitoring device,
replace the monitoring device.
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