Instruction manual

USING THE CONTROL PANEL
Eaton
®
9390 UPS (20–80 kVA) and 9390IT (20-40 kVA) Installation and Operation Manual S 164201603 Rev 4 www.eaton.com/powerquality
8-42
8.5 Reading the Status Indicators
The four symbols on the right side of the control panel are status indicators. They are
colored light emitting diode (LED) lamps, and they work in conjunction with the alarm
horn to let you know the operating status of the UPS.
Normal This green indicator is illuminated when the UPS is
operating in Normal mode. The power module is
supplying power to the critical load.
The indicator flashes when the system needs
attention. The LCD shows all active notices. Some
notices may be accompanied by an audible horn. To
silence the horn, press any control panel pushbutton
once. The indicator may be flashing while other
indicators are illuminated. The indicator continues to
flash until acknowledged by pressing any control
panel pushbutton once.
Battery This yellow indicator is illuminated when the UPS is
operating in Battery mode. Because Battery mode is
a normal condition of the UPS, the Normal indicator
also remains illuminated.
Bypass This yellow indicator is illuminated when the UPS is
operating 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.
Alarm This red indicator is illuminated when a situation
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. The indicator flashes until acknowledged
by pressing any control panel pushbutton once.
For more information about audible horns, see “System Event Horns” on page 11-1.