GE Industrial Solutions GPS 4848_100 Users Guide (dual rectifier shelf) - Manual (Page 33)

Galaxy Power System 4848/100 with Dual Rectifier Shelf
Issue 5 September 2011 Galaxy Millennium Controller 3 - 3
User Interface and Display, continued
LEDs Two columns of LEDs show the severity and source of active alarms.
An alarm event may activate two LEDs: one Alarm Status LED and one
Equipment Status LED. More than one of the Equipment Status LEDs
may be active simultaneously. In that case, the Alarm Status LED that
is active will be that of the most severe active alarm.
The first column has five LEDs. The first four indicate the severity of
the reported alarms: Critical, Major, Minor, and Normal. The fifth LED,
labeled Battery on Discharge, illuminates when the plant voltage is
below the threshold set for this alarm condition in the plant
configuration.
The second column includes seven LEDs, six of which indicate the
source of the alarm: AC System, Battery, Controller, Distribution,
Rectifier, or Remote Module. The final Modem LED will be active
whenever the controller modem port is in use.
The pushbutton identified with an illuminated lamp icon can be used to
test the controller’s circuit pack and front panel LEDs. It will also test
the indicators of all serially connected devices.
Pushbutton
Controls
A group of pushbutton keys beneath the backlit LCD display provides
the primary user interface with the controller. These keys are used singly
or in combination to navigate through the controller’s menus. The
following is the general description of these keys.
• Up arrow key: Use to navigate the menu; press the key to move the
cursor up one line.
• Down arrow key: Use to navigate the menu; press the key to move
the cursor down one line.
• Left arrow key: Use to navigate the menu; press the key to move
the cursor left one field.
• Right arrow key: Use to navigate the menu; press the key to move
the cursor right one field.
• MENU key: Press this key any time to view the MAIN menu.
• HELP key: Press this key to display limited on-line help
information.
• ENTER key: Use this key to select a menu item.
• ESCAPE key: Use this key to return to the immediately higher
level menu.