Smu - Huawei LUNA2000-2.0MWH Series User Manual

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Indicator
Fault
indicator

2.6.1.5 SMU

SMU collects PSU information and controls PSU output.
SMU02C
Figure 2-27 Appearance
(1) SD card slot
(4) Major alarm indicator
(7) RS485/RS232
communications port
(10) Liquid crystal display
(LCD)
Table 2-17 Indicator description
Name
Running
indicator
Issue 15 (2023-11-01)
Color Status
Blinking at
0.5 Hz
Red Off
Steady on
(2) Running indicator
(5) Buttons
(8) FE communications port
-
Color Status
Green Off
Copyright © Huawei Technologies Co., Ltd.
Description
The PSU is hibernating.
The communication between the PSU
and the monitoring module is
interrupted.
The PSU is normal.
The PSU locks out due to output
overvoltage.
The PSU has no output due to an
internal fault.
(3) Minor alarm indicator
(6) USB port (protected by a
security protection mechanism)
(9) CAN communications port
-
Description
The SMU is faulty or has no DC
input.
2 Overview
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