Huawei UPS2000-G-6KRTLL - Shutting down the Inverter; Alarm Handling

12
Alarm Handling
6
Shutting Down the Inverter
5.3
1. Shut down loads.
2. Press and hold down OFF/ENTER for more than 5s. Release the button when you hear the
buzzer buzzing. The UPS shuts down the inverter and transfers to bypass mode. If mains
parameters are inconsistent with bypass parameters, the UPS transfers to standby mode.
3. Switch off the UPS AC input circuit breaker (on the power distribution cabinet or external
switch) and output circuit breaker (if any) based on site requirements.
4. Switch off the external battery circuit breaker (if any), or disconnect battery power cables (if
there is no external battery circuit breaker).
Alarm
ID
Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on the
System
Suggestion
01
Fan
blocked
Minor
The fan
automaticall
y recovers
from
blockage.
The fan
blockage
signal is at
low level
for 15s
within 30s.
The current
working status
is not affected.
If
overtemperature
protection is
triggered, the
system may
transfer to
bypass mode.
•
Possible cause:
The fan is
blocked.
Measure: Check
the fan and
remove
sundries.
•
Possible cause:
The fan is faulty.
Measure:
Replace the fan.
02
Overtem
perature
Critical
Fan blocked:
The highest
temperature
of internal
components
is lower than
65
°C. Fan
not blocked:
The highest
temperature
of internal
components
is lower than
50
°C. After
the
temperature
is restored to
normal, the
alarm can be
automaticall
y cleared for
three times.
After that,
you need to
manually
clear the
alarm.
Fan
blocked:
The highest
temperatur
e of
internal
component
s exceeds
80
°C for
100
ms.
Fan not
blocked:
The highest
temperatur
e of
internal
component
s exceeds
90
°C for
100
ms.
The system
shuts down the
inverter and
transfers to
bypass mode.
•
Possible cause:
The
temperature is
too high.
Measure:
Decrease the
ambient
temperature or
load.
•
Possible cause:
The
temperature
sensor is faulty.
Measure: Send
the device to the
maintenance
center.
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