Eaton 93PM Series - Page 99

Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07 87
Table 20. Status Indicators
Indicator Status
Description
Green
On The UPS is in Double Conversion mode. 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 normal 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, touch any control panel button. The Alarm
indicator may be illuminated along with other indicators.
Flashing
There is a new UPS alarm condition. The indicator flashes until
acknowledged by touching any control panel button once.
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When the UPS system is running in Double Conversion 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 Double Conversion mode. System events on the UPS can be indicated by horns,
lights, messages, or all three.
Select the LOGS tab from the navigation bar on main menu screen to display 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 Display Menu Operation.
• 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. To silence the horn, touch any control panel button.
• 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 double conversion. Only the normal
mode indicator is illuminated 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 Status Indicators.
• 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 Events Log and may be added to the History Log. The
messages are divided into four categories: alarms, notices, status, and commands.
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The LCD touch screen on the control panel provides an operator interface with the UPS system. Figure 49
identifies the display areas discussed in the following sections.
All functions and commands are accessed by touching or tapping the screen tabs or buttons. When text input
is required, either a Qwerty keyboard or numeric keypad will be displayed.
UPS Operating Instructions