Huawei UPS2000-G-6KRTLL - Page 98

Alarm ID Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on
the System
Suggestion
84 Inconsistent
AC input
voltage and
frequency
Critical The voltage
dierence is
less than 20
V or the
UPS is set
to
standalone
mode.
The mains
voltage
deviation
between
UPSs in a
parallel
system
ranges from
40 V to 100
V for 120
ms.
The system
shuts down
the inverter
and
transfers to
bypass
mode. If
other UPSs
in the
parallel
system can
deliver
output in
inverter
mode, the
UPS that
has
generated
the alarm
delivers no
output.
Possible
cause: The
UPSs do
not share
one mains
supply.
Measure:
Ensure that
all UPSs
share one
mains
supply.
87 EPO
triggered
Critical The EPO
open-circuit
status
needs to be
restored
and the
alarm
needs to be
manually
cleared.
The EPO
port is
short-
circuited.
The system
switches o
the output
and enters
the fault
mode.
Check and
restore the
EPO port
status.
BP Battery not
connected
Minor The battery
voltage is
higher than
36 V.
● The
battery
voltage
is lower
than 36
V.
● Batteries
are
reversely
connecte
d.
If batteries
are not
connected,
the output
may be
interrupted
after mains
outage.
Check
whether
battery
cables are
correctly
connected.
UPS2000-G-6KRTLL
User Manual 4 Control Panel
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 92