Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 137

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
130
Indicator
Color
Status
Description
Suggestion
PSU.
The PSU is
damaged.
Replace the PSU.
Blinking at 0.5 Hz
Querying is in
progress.
Normal.
Blinking at 4 Hz
The PSU is loading
the application
program.
The PSU
automatically
recovers after the
loading is finished,
and no action is
required.
Alarm indicator
Yellow
Off
The PSU does not
generate any
protection alarm.
Normal.
Steady on

A warning is
generated due to
ambient
overtemperature
.

A shutdown
protection alarm
is generated due
to ambient
overtemperature
or
undertemperatur
e.
Check that the air
vent is not blocked
and the ambient
temperature is
within the normal
range.
AC input
overvoltage or
undervoltage
protection is
triggered.
Check the power
grid voltage.
The PSU is
hibernating.
Normal.
Blinking at 0.5 Hz
The communication
between the PSU
and the monitoring
module is
interrupted.
Replace the PSU or
monitoring module.
Fault indicator
Red
Off
The PSU is normal.
Normal.
Steady on
The PSU locks out
due to output
overvoltage or it is
not properly
inserted.
Remove the PSU
and then insert it 1
minute later.