Powerware 5075 kVA - Manual (Page 62)

54 Powerware BPIII Harsh Environment UPS 50--75 kV Installation and Operation
164291261 Rev. F 111503
Reading the Status Indicators
The six lights on the left side of the monitor panel are status indicators. They are
backlit by colored light emitting diode (LED) lamps, and work in conjunction with
the alarm horn to let you know the operating status of the UPS.
Normal This green indicator is lit when the UPS is operating in Normal mode.
The power processing unit (PPU) is supplying power to the critical load.
Battery This yellow indicator is lit when the UPS is operating in Battery mode.
Because Battery mode is a normal condition of the UPS, the Normal
indicator also remains lit.
Bypass This yellow indicator is lit when the UPS is operating in Bypass mode.
The critical load is supported by the bypass source. The Normal indicator
is not lit when the system is in Bypass mode.
Notice This yellow indicator is lit when the system needs attention. The LCD
screen shows all active notices. Some notices may be accompanied by
an audible horn. To silence the horn, press the
and pushbuttons
simultaneously. The Notice indicator may be lit along with other indicators.
Alarm This red indicator is lit when a situation requires immediate attention. The
LCD screen shows the highest priority active alarms. All alarms are
accompanied by an audible horn. To silence the horn, press the
and pushbuttons simultaneously. The Alarm indicator may be lit
along with other indicators.
Standby This yellow indicator is lit when electricity is present in the PPU of the UPS
and the Normal indicator is not lit. During normal startup, this indicator
illuminates until the UPS transfers to Normal mode, at which point the
Normal indicator is lit. During normal shutdown, the Standby indicator is lit
until all energy in the UPS is dissipated and shutdown is complete.
For more information about audible horns, refer to the System Event Horns section of
Chapter 12.
To test the LED lamp status indicators, press the
and pushbuttons
simultaneously for 3 seconds. All the indicators should light while you hold down
these pushbuttons. If any indicator does not light, its LED may need to be
replaced. Contact Customer Service if you have a problem with the indicator
lamps.