Huawei UPS2000-G-6KRTLL - Page 75

Alarm ID Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on
the System
Suggestion
09 Bus short-
circuit
Critical You need to
manually
rectify the
fault or
power o
and restart
the device.
The bus
soft-start
time
exceeds
15s.
The system
cannot start
the inverter
or transfer
to bypass
mode.
Possible
cause: The
circuit is
faulty.
Measure:
Send the
device to
the
maintenanc
e center.
12 Manual
bypass
activated
Minor The open-
circuit
status of
the manual
bypass is
restored.
The manual
bypass port
is short-
circuited.
The system
transfers to
bypass
mode.
Restore the
open-circuit
status of
the manual
bypass port.
13 Phase lock
failure
Minor Phase
locking is
successful
or the
bypass is
missing.
The inverter
fails in
phase
locking
within 10s.
The system
cannot start
PFC or
enter
normal
mode.
Possible
cause: The
power grid
frequency is
unstable.
17 Bypass
abnormal
Minor The bypass
voltage or
frequency
recovers to
the normal
range.
The bypass
voltage or
frequency
exceeds the
normal
range.
● The
system
cannot
transfer
to
bypass
mode
when a
critical
alarm is
generate
d.
● In
bypass
mode,
the
power
output is
disconne
cted.
● Check
that the
bypass
connecti
on is
normal.
● Check
that the
bypass
voltage
and
frequenc
y are
within
their
normal
ranges.
UPS2000-G-6KRTLL
User Manual 4 Control Panel
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 69