Huawei LUNA2000-200KWH-2H1 - 2.4.2 Monitoring System

Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause Suggestion
3853 ESC
Physical
Location
Failure
Minor Cause ID = 1
ESC physical location
failed.
1. Check whether the network cables
between ESCs are connected properly.
2. Check whether the network cables
between the rst and last ESCs and
the CMU are connected properly.
3. Check whether the RS485 cable
between ESC-1 and the CMU is
connected properly.
3856 Battery
Fault
Protecti
on
Major Cause ID = 1
Some battery packs
are severely faulty,
causing the system to
shut down.
Cause ID = 2
The temperature of
some battery packs is
too low. As a result,
charge capacity is not
reached due to low
temperature
protection.
Maintain the battery pack based on the
alarm and troubleshooting suggestions.
3857 Memory
Abnorm
al
Minor Cause ID = 1
1. The storage space is
insucient.
2. The memory is
faulty.
Contact your technical support.
NO TE
If ALM-3833 Rectier Fault, ALM-3834 Rectier Protection, ALM-3835 Rectier
Communication Failure, ALM-3836 Rectier Power Failure, or ALM-3837 Rectier Output
Overvoltage is generated, rectify the fault by referring to the following table.
Table 3-2 PSU indicator status and troubleshooting
Indicator
Color Status Description Suggestion
Power
indicator
Green Steady on The PSU has
an AC input.
Normal.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 3 Alarm Reference
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 41