Huawei SUN2000-2KTL-L1 User Manual page 89

SUN2000-(2KTL-5KTL)-L1
User Manual
Alarm ID Alarm
Name
2063 Overtemp
erature
2064 Device
Fault
Issue 01 (2020-04-17)
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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