GE Industrial Solutions GPS 4848_100 Users Guide (single rectifier shelf) - Manual (Page 29)

Galaxy Power System 4848/100 with 595 Series Rectifiers S1:3 and later
Issue 10 February 2008 Galaxy Millennium Controller 3 - 3
User Interface and Display, continued
LEDs Two rows of LEDs show the source and severity of various alarms. An
alarm may light two LEDs: one alarm LED and one status LED. More
than one alarm LED may be on at the same time. In this case, the status
LED will be that of the most severe active alarm.
The first row of seven LEDs indicates the source of the alarm: BD,
battery on discharge; BATT, battery; DIST, distribution; RECT,
rectifier; AC, ac power supply; RM, remote monitoring; and CTRL,
controller.
The second row includes five LEDs. The first four LEDs indicate the
severity of the reported alarms: CRIT, critical; MAJ, major; MIN,
minor; and NORM, normal. Another LED, labeled COM, will be
illuminated when the internal modem is in use.
A pushbutton labeled LAMP TEST tests the controller’s circuit pack
LEDs and front panel LEDs. It will also test the indicators of serially
connected rectifiers.
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.
Test Jacks A pair of test jacks allows direct measurement of the dc bus sense
voltage being monitored.