Operating instructions

50
Alarm or Notice Possible cause Remark / Action
UPS on Battery
(Notice #168)
Intermittent Alarm
A
utility failure has
occurred and the UPS
is in Battery mode.
The UPS is powering
the equipment with
battery power. Prepare
your equipment for
shutdown.
Battery
Disconnected
(Alarm #199)
Continuous Alarm
The UPS does not
recognize the internal
batteries.
Make sure that all
batteries are correctly
connected. If the
condition persists,
contact your service
representative.
The battery voltage is
lower than the batteries
disconnected level that is
defined for this UPS. This
might be because of a
blown fuse, intermittent
battery connection, or a
battery cable is
disconnected.
Low Battery
Warning
(Alarm #56)
Intermittent Alarm
The battery time remain-
ing or battery capacity is
lower than the battery
low warning level that is
defined for this UPS.
This warning is
approximate. The actual
time to shutdown might
vary depending on the
UPS load and presence
of an extended battery
module.
Shutdown Imminent
(Alarm #55)
Intermittent Alarm
The communication to
external devices stops
because the UPS has
entered a state where it
might abruptly stop
operating without further
notice unless utility power
returns.
The alarm is issued
when the battery time
remaining reaches zero.
A
ll connected devices
should have already
shut down gracefully.
Battery Test Failed
(Alarm #191)
Intermittent Alarm
A
weak battery string was
detected during the last
battery test.
This is a warning notice.
Replace the batteries
soon.