ABB GPS4827, User Manual

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Page 14
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LEDs
Two rows of LEDs show the source and severity of various alarms. An alarm lights one status LED and
one or more alarm LEDs. If more than one alarm LED lights, the status LED that lights will indicate the
most severe active alarm.
• The first row includes four LEDs, labeled Alarm Status. They indicate the severity of the reported alarm:
•
Critical
•
Major
•
Minor
•
Normal
The Battery on Discharge LED is also in this row.
• The second row has seven LEDs, labeled Equipment Status. They indicate the source
of the alarm:
•
AC System
•
Battery
•
Controller
•
Distribution
•
Rectifier
•
Remote Modules
The Modem LED illuminates when the internal modem is in use.
Test Jacks
A pair of test jacks allows direct measurement of the dc bus sense voltage being monitored by the
controller.
Pushbutton Keys
A group of pushbutton keys below 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 a general description of the pushbutton keys:
• ESCAPE: Return to the immediate higher level menu.
• HELP: Displays limited on - line help information.
• MENU: View the MAIN menu.
•
ENTER: Select a menu item.
• Up arrow: Moves the cursor up one line.
• Down arrow: Moves the cursor down one line.
• Left arrow: Moves the cursor left one field.
• Right arrow: Moves the cursor right one field.
• + and - : Increase or decrease parameter values.
• Lamp test: Tests the controller ’ s circuit board LEDs and front panel LEDs. It will also test the Indicators of serially
connected rectifiers.