Responding to System Events
11.1General
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 Events from the System Event menu on the LCD screen to look at the Active System Events screen. This screen shows any currently active alarms, notices,
or commands. (For more information on using the Events screen, refer to paragraph 8.3.2 “System Events Screens of Chapter 8.)
11.2System Event Horns
The system event horn beeps according to the type of event it is signifying:
·Horn 1 — The Horn cycles on for 1 second at a one second rate. It is normally used for all Alarm conditions.
·Horn 2 — The Horn sounds for 3 second every three seconds. It is normally used for all Notice conditions.
·Horn 3 — The Horn sounds for 5 second every five seconds. It is normally used to prompt the User for action.
11.3System 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 paragraph 8.6 “Reading the Status Indicators” of Chapter 8.)
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