Huawei SUN2000-2KTL-L1 User Manual page 94

SUN2000-(2KTL-6KTL)-L1
User Manual
Alarm ID Alarm
Name
2063 Overtem
perature
2064 Device
Fault
Issue 03 (2020-07-20)
Alarm Possible Causes
Severity
Minor Cause ID = 1
● The SUN2000 is
installed in a place with
poor ventilation.
● The ambient
temperature is higher
than the upper
threshold.
● The SUN2000 is not
working properly.
Major An unrecoverable fault has
occurred on a circuit inside
the SUN2000.
Cause ID = 1–12
● 1: The Boost input is
short-circuited.
● 2: The Boost input
experiences overcurrent.
● 3: The control circuit is
faulty.
● 4: The inverter circuit is
abnormal.
● 5: The residual current
sensor is faulty.
● 6: The temperature
detection fails.
● 7: EEPROM read/write
fails.
● 8: The auxiliary power
supply is abnormal.
● 9: The grid-tied relay is
abnormal.
● 10: The DC bus
experiences overvoltage.
● 11: The DC bus
experiences
undervoltage.
● 12: The DC bus
experiences voltage
imbalance.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
● Check the ventilation and
ambient temperature of the
SUN2000 installation
position.
● If the ventilation is poor or
the ambient temperature
exceeds the upper threshold,
improve the ventilation and
heat dissipation.
● If the ventilation and ambient
temperature both meet
requirements, contact your
dealer or Huawei technical
support.
Turn off the AC output switch
and DC input switch, and then
turn them on after 5 minutes. If
the fault persists, contact your
dealer or Huawei technical
support.
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