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UPS 675-1100 kVA 3..4x(225-275) kVA
1029052
User’s and Installation Guide
Revision 008
Table 7-1: Status indicators
7.2.2 System events
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 menu bar on the main menu 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, see Section 7.2.6 “Display menu operation” on page 96.
•
System Event Horn
- The system event horn beeps to alert an operator that an event needing
attention is taking place. The horn cycles at a one-second rate.
•
System Event Indicators
- The status indicators on the UPS control panel and the event horn 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 other indicators illuminate to indicate
alarms or events. When an alarm occurs, first check these indicators to see what type of event has
taken place. For descriptions of the status indicators, see Section 7.2.1.
•
System Event Messages
- When a system event occurs, a message appears on the LCD in the
UPS status area. This message is also written to the Active Events log and may be added to the
Events History log. The messages are divided into four categories: alarms, notices, status, and
commands.
The top line of the LCD scrolls all active notices and alarms. The top line of display blinks while
scrolling when the system needs attention. Some notices and alarms may be accompanied by an
audible horn. To silence the horn, press any control panel pushbutton once.
7.2.3 Using the LCD and pushbuttons
The LCD on the control panel provides an operator interface with the UPS system. Figure 7-3 identifies
the display areas discussed in the following sections.
Yellow
On
The UPS is in Battery mode. Because Battery mode is a normal condition of the UPS, the Nor-
mal indicator also remains illuminated.
Yellow
On
The UPS is in Bypass mode. The critical load is supported by the bypass source. The Normal
indicator is not illuminated when the system is in Bypass mode.
Red
On
The UPS has an active alarm and requires immediate attention. The LCD shows the highest
priority active alarms. All alarms are accompanied by an audible horn. To silence the horn,
press any control panel pushbutton once. The Alarm indicator may be illuminated along with
other indicators.
Flashing
There is a new UPS alarm condition. The indicator flashes until acknowledged by pressing
any control panel pushbutton once.
Indicator
Status
Descriptions
