Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 136

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
129
Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause
Suggestion
3851
Exhaust
Fan Fault
Minor
Cause ID = 1
Exhaust fan-1 is faulty.
Cause ID = 2
Exhaust fan-2 is faulty.
1. Check whether the cable is loose. If yes,
connect the cable securely. Check whether
the fan is damaged or burnt. If yes, replace
the fan.
2. Check whether the TCU connected to the
exhaust fan works properly.
3. If the fault persists, contact your technical
support.
3852
Ambient
Temperat
ure Low
Cause ID = 1
The ambient temperature
in the battery cabin is too
low.
1. Check whether the air conditioners in the
battery cabin are faulty.
2. Check whether the doors of the battery
cabin are completely closed.
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 first 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
Protectio
n
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
Abnorma
l
Minor
Cause ID = 1
1. The storage space is
insufficient.
2. The memory is faulty.
Contact your technical support.
Table 6-2 PSU indicator status and troubleshooting
Indicator
Color
Status
Description
Suggestion
Power indicator
Green
Steady on
The PSU has an AC
input.
Normal.
Off
The PSU has no AC
input.
Check whether the
input is normal. If
yes, replace the