Huawei LUNA2000-100KTL-M1 - Page 96

Alarm
ID
Alarm
Name
Severi
ty
Possible Cause Suggestion
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.
2061 Abnormal
Grounding
Major Cause ID = 1
1. The neutral wire or PE
cable of the device is not
connected.
2. The output mode of the
device does not match the
actual cable connection.
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:
1. Check that the PE cable of
the device is connected
properly.
2. If the device is connected to
a TN power grid, check
whether the neutral wire is
properly connected and
whether the voltage to
ground is normal.
3. After powering on the
device, check whether the
output mode set on the
device matches the actual
cable connection.
LUNA2000-100KTL-M1 Smart Power Control System
User Manual 8 Alarm Reference
Issue 02 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 90