Huawei UPS2000-A-RTL Series User Manual page 104

UPS2000-A-(6 kVA-10 kVA)-RTL
User Manual
Alarm Alarm
Name ID
overload
Output 42
overload
Output 42
overload
Output 42
overload
Bypass 47
backfeed
EPO 55
Bypass 56
transfer
times limit
Issue 07 (2020-01-10)
Alarm Alarm Alarm
Cause level Clear Mode
ID
clear
3 Critica Automatic
l clear
4 Critica Manual
l clear/Power-
off clear
5 Critica Manual
l
clear/Power-
off clear
1 Critica Power-off
l clear
1 Critica Manual
l
clear/Power-
off clear
1 Minor Manual
clear/Power-
off clear
Copyright © Huawei Technologies Co., Ltd.
Impact on the
System
overload causes the
UPS to supply no
power.
The UPS starts
automatically after
it shuts down; the
UPS transfers to
another working
mode or shuts
down.
The UPS cannot
start.
The UPS has no
output when the
load is excessively
heavy.
The bypass input
circuit breaker in
the PDU is OFF.
The UPS shuts
down.
The UPS cannot
transfer to an
unsteady side.
A Alarm Handling
Repair Proposal
exceeds the rated loading
capacity of the bypass.
Measure: Lower the load
or replace the UPS with
a UPS with a larger
capacity.
Possible cause: The load
exceeds the rated loading
capacity of the inverter.
Measure: Lower the load
or replace the UPS with
a UPS with a larger
capacity.
Possible cause: The load
exceeds the rated loading
capacity of the bypass.
Measure: Lower the load
or replace the UPS with
a UPS with a larger
capacity.
Possible cause: The load
is faulty, the load
capacity is large, or the
load is short-circuited.
Measure: Check whether
the load is faulty.
Possible cause: Bypass
components are faulty.
Measure: Contact
Huawei technical
support.
Possible cause: You have
pressed the EPO switch.
Measure: Restore the
EPO switch status, clear
the alarm, and restart the
UPS.
Possible cause: The
output is transferred
more than three times
within 30 minutes.
Measure: Clear the alarm
and restart the UPS.
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