Alarm Reference - Huawei LUNA2000-200KTL-H0 User Manual

LUNA2000-200KTL-H0 Smart Power Control System
User Manual
Alarm severities are defined as follows:
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Table 10-1 Common alarms and troubleshooting measures
Alarm Alarm Name
ID
2004 DC Overvoltage
2005 DC in Reverse
Polarity
Issue 05 (2022-06-30)
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 affecting the
grid-tied power generation.
Warning: The Smart PCS works properly. The output power decreases or some
authorization functions fail due to external factors.
Severity
Major
Major
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10
Possible Cause
Cause ID = 1
The DC bus voltage of the
device exceeds the upper
threshold.
Cause ID = 1
The DC bus of the device is
connected in reverse
polarity.

10 Alarm Reference

Alarm Reference
Suggestion
Turn off 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.
Power off the device (turn
off the AC and DC
switches, and wait for a
period specified 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.
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