Huawei LUNA2000-200KWH-2H1 User Manual page 165

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Alarm Alarm
ID Name
3821 Air
Conditio
ner DC
Overvol
tage
3822 Air
Conditio
ner DC
Undervo
ltage
3825 UPS
Alarm
Issue 03 (2023-03-30)
Alarm Possible Cause
Severit
y
Major Cause ID = 1–13
1. The input voltage of
[HVAC-No] is
higher than the
overvoltage
threshold.
2. The overvoltage
threshold setting is
improper.
3. The voltage test
device is faulty.
Major Cause ID = 1–13
1. The input voltage of
[HVAC-No] is lower
than the
undervoltage
threshold.
2. The undervoltage
threshold setting is
improper.
3. The voltage test
device is faulty.
Major Cause ID = 1
A UPS alarm has been
generated.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Suggestion
1. Check that the DC overvoltage alarm
threshold is set to a proper value. The
default value is 58 V.
2. If the preceding threshold is set
properly, measure and record the
power voltage of the air conditioner
and contact your technical support.
1. Check that the DC undervoltage alarm
threshold is set to a proper value. The
default value is 42 V.
2. If the preceding threshold is set
properly, measure and record the
power voltage of the air conditioner
and contact your technical support.
Troubleshoot the fault by referring to the
alarm troubleshooting section in the UPS
user manual.
13 Alarm Reference
156