Huawei LUNA2000-200KTL-H0 - Alarm Reference

10 Alarm Reference
Alarm severities are dened as follows:
● Major: The Smart PCS is faulty. 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 10-1 Common alarms and troubleshooting measures
Alarm
ID
Alarm Name Severity Possible Cause Suggestion
2004 DC Overvoltage Major Cause ID = 1
The DC bus voltage of the
device exceeds the upper
threshold.
Turn o the AC and DC
switches, wait for 5
minutes, and then turn on
the AC and DC switches. 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 and DC
switches, 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.
LUNA2000-200KTL-H0 Smart Power Control System
User Manual 10 Alarm Reference
Issue 05 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 86