Responding To System Events; System Event Horns; System Event Lights - Powerware Uninterruptible Power Supply Installation And Operation Manual

Responding to System Events

14.1 General
When the UPS system is running in Normal mode, it continually monitors itself and
the incoming utility power. In Battery or Bypass modes, the UPS may issue alarms
to let you know exactly what event caused the change from Normal mode. System
events on the UPS can be indicated by horns, lights, messages, or all three.
Select Active from the Events menu on the LCD screen to look at the Active
System Events screen. This screen shows any currently active alarms, notices,
or commands.

14.2 System Event Horns

The system event horn beeps according to the type of event it is signifying:
·
When the UPS detects an alarm that requires your attention, the horn beeps at
½-second intervals.
·
When a notice occurs, the horn beeps at 2-second intervals.

14.3 System Event Lights

The status indicators on the UPS Control Panel work in conjunction with the event
horn to let you know when the UPS system is operating in any mode other than
Normal. Only the Normal indicator is visible during normal UPS system operation.
The others light to indicate alarms or events. When an alarm occurs, you should
first check these indicators to see what type of event has taken place. (For
descriptions of the status indicators, refer to the "Reading the Status Indicators"
section of Chapter 11.)
Powerware 9315 (500 kVA- -750 kVA) Installation and Operation
164201244 REV. D 030101
14
14--1