Huawei UPS2000-G-6KRTLL - Page 91

Alarm ID Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on
the System
Suggestion
51 Output
overcurrent
Critical You need to
manually
rectify the
fault or
power o
and restart
the device.
The output
current
exceeds 80
A for 1 ms.
The system
shuts down
the inverter
and
transfers to
bypass
mode.
● Possible
cause:
The
transient
load
power is
too high.
Measure:
Locate the
load and
remove it.
● Possible
cause:
The
circuit is
faulty.
Measure:
Send the
device to
the
maintenanc
e center.
52
Bus
undervoltag
e
Critical You need to
manually
rectify the
fault or
power o
and restart
the device.
● Battery
mode:
The bus
voltage
is less
than 7
times
the
battery
voltage
by over
100 V.
● Normal
mode:
The bus
voltage
is less
than the
peak
mains
voltage
by over
80 V.
The system
shuts down
the inverter
and
transfers to
bypass
mode.
● Possible
cause:
The
transient
load
power is
too high.
Measure:
Locate the
load and
remove it.
● Possible
cause:
The
circuit is
faulty.
Measure:
Send the
device to
the
maintenanc
e center.
UPS2000-G-6KRTLL
User Manual 4 Control Panel
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 85