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.