Huawei LUNA2000-200KTL-H0 - Page 98

Alarm
ID
Alarm Name Severity Possible Cause Suggestion
2039 AC Overcurrent Major Cause ID = 1
The grid experiences a
dramatic voltage drop or is
short-circuited. As a result,
the transient AC current of
the device exceeds the
upper threshold and
triggers protection.
1. The device detects its
external working
conditions in real time.
After the fault is
rectied, the device
automatically recovers.
2. If the alarm occurs
frequently and
aects
the operation of the
power plant, check
whether AC short
circuit exists. If the
fault persists, contact
your dealer or technical
support.
2040 DC Component
Overhigh
Major Cause ID = 1
The DC component in the
AC current exceeds the
upper threshold.
1. The device detects its
external working
conditions in real time.
After the fault is
rectied, the device
automatically recovers.
2. If the alarm occurs
frequently, contact your
dealer or technical
support.
2051 Abnormal
Residual Current
Major Cause ID = 1
The ground insulation
resistance decreases during
device operation.
1. If the alarm occurs
occasionally, the
external circuit may be
abnormal temporarily.
The device will
automatically recover
after the fault is
rectied.
2. If the alarm occurs
frequently or persists,
check whether the DC-
to-ground impedance is
too low.
LUNA2000-200KTL-H0 Smart Power Control System
User Manual 10 Alarm Reference
Issue 05 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 92