Huawei LUNA2000-100KTL-M1 - Alarm Reference

8 Alarm Reference
Alarm severities are dened as follows:
● Major: The Smart PCS is faulty or the external environment is abnormal. As a
result, the output power decreases or the grid-tied power generation is
stopped.
● Minor: Some components of the Smart PCS are faulty without
aecting the
grid-tied power generation.
● Warning: The Smart PCS works properly. The output power decreases or some
authorization functions fail due to external factors.
Table 8-1 Common alarms and troubleshooting measures
Alarm
ID
Alarm
Name
Severi
ty
Possible Cause Suggestion
2004 DC
Overvoltag
e
Major Cause ID = 1
The DC bus voltage of the
device exceeds the upper
threshold.
Turn o the AC switch and DC
switch, wait for 5 minutes, and
then turn on the AC switch and
DC switch. If the fault persists,
contact your dealer or
technical support.
2005 DC in
Reverse
Polarity
Major Cause ID = 1
The DC bus of the device is
connected in reverse polarity.
Power o the device (turn o
the AC switch and DC switch,
and wait for a period specied
on the device safety warning
label), and then perform the
following operations:
Check whether the DC
terminals are connected in
reverse polarity. If yes, adjust
the DC polarities.
LUNA2000-100KTL-M1 Smart Power Control System
User Manual 8 Alarm Reference
Issue 02 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 85