LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Copyright © Huawei Technologies Co., Ltd.
Blinking green fast (on for 0.125s and
then off for 0.125s)
The communication with the
management system is
interrupted.
Alarm/maintena
nce indicator
(ALM)
No system alarm is generated.
Blinking red slowly
(on for 1s and then
off for 4s)
The system raises a warning
alarm.
Blinking red fast
(on for 0.5s and
then off for 0.5s)
The system raises a minor
alarm.
The system raises a major
alarm.
No local maintenance is in
progress.
Blinking green
slowly (on for 1s
and then off for 1s)
Local maintenance is in
progress.
Blinking green fast
(on for 0.125s and
then off for 0.125s)
Local maintenance fails or the
connection to the app is to be
set up.
Local maintenance succeeded.
2.4.2.2 I/O Expansion Board
The I/O expansion board controls and monitors the door status sensor, sensors, and air
conditioners in the ESS, connects cables to the fire suppression system, and black starts the
system.
≤ 95% RH (non-condensing)
113.7 mm x 251 mm x 54.5 mm