Huawei UPS2000-G-6KRTLL - Page 97

Alarm ID Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on
the System
Suggestion
82 Parallel
synchroniza
tion signal
fault
Critical You need to
manually
rectify the
fault or
power o
and restart
the device.
The
synchroniza
tion zero-
crossing
signal is
lost for
more than
200 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
circuit is
faulty.
Measure:
Send the
device to
the
maintenanc
e center.
83 Parallel
battery
voltage
deviation
exceeding 4
V
Critical The voltage
dierence is
less than 3
V or the
UPS is set
to
standalone
mode.
The battery
voltage
deviation
between
UPSs in a
parallel
system is
greater
than 4 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:
Batteries
are not
shared.
Measure:
Ensure that
all UPSs
share one
battery
string.
UPS2000-G-6KRTLL
User Manual 4 Control Panel
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 91