Huawei LUNA2000-2.0MWH Series - Input;Output Board (IO Board)

Indicators
Indicator Status Description
Running
indicator
(RUN)
Green o Not powered on
Blinking green slowly (on for
1s and then o for 1s)
The communication with the
CMU is normal.
Blinking green fast (on for
0.125s and then o for 0.125s)
The communication with the
CMU is interrupted.
Alarm/
maintenance
indicator
(ALM)
Alarm status Red o No alarm is raised for the
SmartModule.
Blinking red
slowly (on for
1s and then
o for 4s)
The SmartModule runs with
an expired digital certicate.
Blinking red
fast (on for
0.5s and then
o for 0.5s)
The SmartModule digital
certicate is invalid.
Steady red Reserved
2.6.2.3 Input/Output Board (IO Board)
NO TE
Only some models are equipped with the IO Board.
The IO Board controls and monitors some devices in the ESS, such as door status
sensors, detectors, and air conditioners, as well as connects cables to the re
suppression system.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 2 Overview
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 52