Eaton Power Xpert 9395 550/275, Installation And Operation Manual

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UPS Operating Instructions
Power Xpert
TM
9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716—Rev 8 www.eaton.com/powerquality 7-3
7.2.1 Status Indicators
The four symbols on the right side of the control panel are status indicators . These colored light emitting diode
(LED) lamps work with the alarm horn to let you know the operating status of the UPS.
Table 7-1 describes the status indicators.
7.2.2 System Events
When the UPS system is running in Online 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 Online 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 events screen. This screen
shows any currently active alarms, notices, or commands. For more information on using the events screen,
see paragraph 7.2.6 on page 7-6.
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System Event Horns – The system event horn beeps to alert an operator that an event needing attention is
taking place. The horn cycles at a half-second rate.
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System Event Indicators – The status indicators on the UPS control panel work with the event horn to let
the operator know when the UPS is operating in any mode other than Online. Only the Online 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 paragraph 7.2.1.
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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 History Log. The
messages are divided into four categories: alarms, notices, status, and commands.
Table 7-1. Status Indicators
Indicator Status Description
Green
On The UPS is in Online mode, operating normally. The power module is supplying power to the critical load.
Off The UPS is turned off.
Yellow
On The UPS is in Battery mode. Because Battery mode is a normal condition of the UPS, the Online indicator also remains
illuminated.
Yellow
On The UPS is in Bypass mode. The critical load is supported by the bypass source. The Online 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.