Rackmount Solutions XRT Series - Manual (Page 25)

24
ALARMS AND WARNINGS
Alarms
Conditions that may require immediate attention will be signaled by the
UPS beeping it’s audible alarm. The following is a list of alarms the XRT
UPS reports:
On Battery (AC Fail)
When the UPS has detected a condition that forces it to run from the
battery, an alarm will sound every 30 seconds. The alarm stops when
normal AC returns to the unit. Pressing the Test/Alarm Silence button on
the XRT600 will silence this alarm. However, a new alarm will sound if any
of the other alarm conditions occur. In the XRT1000 and higher units, the
audible alarm will be complimented by a display on the LCD screen
indicating the exact nature of the alarm, and may be turned off by
selecting the SETUP menu and turning the alarm off. Shutting off the
audible alarm in this fashion does not affect the alarm reporting through
the communications port or the LCD screen.
Overload
The UPS is overloaded when the supplied loads exceeds 110% of the
rating shown in the GENERAL PRODUCT SPECIFICATIONS section of
this manual. In an overload condition, the XRT600 will blink the top four
LED’s, and on the XRT1000 and above, the “Overload” message will be
displayed. The audible alarm will sound every 1/2 second. If the fault is not
cleared within 30 seconds, or if the overload exceeds 115% of the rating,
the UPS will shut itself down.
Low Battery Warning
When the UPS is running on its batteries and the battery voltage drops to
approximately 42 Volts, the Low Battery Warning will sound, beeping
every 1/2 second. The Low Battery Warning light on the LED front panel
will blink, and on the LCD front panel, the “Battery Low” message will be
displayed. If the battery voltage drops to 39 volts, the UPS will shut itself
down.
Check Fan
If the cooling fan fails, the Check Fan alarm will sound, beeping every 1/2
second. The UPS will shut itself down after 60 seconds.