Alarm ID
(Alarm ID-
Alarm
Cause)
The UPS
transfers to
battery mode.
If no battery is
equipped, the
UPS shuts down.
the working
mode or shuts
down.
The mains voltage exceeds 280
V.
The mains voltage is less than
80 V.
The mains frequency is not in
the range of 40 Hz to 70 Hz.
Measures:
• Check whether the mains input
voltage is less than 272 V. If not,
wait until the mains recovers.
• Check whether the mains input
voltage is greater than 88 V. If
not, wait until the mains
recovers.
Check the mains input
frequency. If the mains input
frequency is abnormal, wait
until the mains input recovers.
The UPS cannot
transfer to bypass
mode. If the bypass
is supplying power,
the UPS changes
the working mode.
The bypass input voltage is
abnormal.
The bypass input frequency is
abnormal.
Measures:
• Check whether the bypass input
voltage exceeds the configured
range. If yes, change the range
or wait until the bypass input
recovers.
• Check whether the bypass input
configured range. If yes, change
the range or wait until the
bypass input recovers.
The rectifier
transfers to
battery mode,
without affecting
the power supply.
•
Possible cause: The mains input
three
-phase sequence is incorrect.
Measure: Check that mains input
power cables are correctly
connected.
Alarm Handling
For more alarm handling, see the
UPS2000-G-(6 kVA-20 kVA) User Manual
.