Front Panel; Display Properties - GE 845 Instruction Manual

DEVICE

Front Panel

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Display Properties

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The 845 relay provides an easy-to-use faceplate for menu navigation using 5 navigation
pushbuttons and a high quality graphical display. Conveniently located on the panel is a
group of 7 pushbuttons for Up/Down value selection, and the "Enter," "Home," "Escape,"
"Help," and "Reset" functions. The faceplate includes 3 programmable function
pushbuttons and 15 programmable LEDs.
Please refer to Front Control Panel Interface on page 5-1.
The USB port on the Front Panel, is intended for connection to a portable PC.
Some relay messaging characteristics can be modified to suit different situations using the
Front Panel Display Properties setting.
Path:
Setpoints > Device > Front Panel > Display Properties
FLASH MESSAGE TIME:
Range: 1 to 10 s in steps of 1 s
Default: 5 s
Flash messages are status, warning, error, or information messages displayed for
several seconds in response to certain key presses during programming. These
messages override any normal messages. The duration of a flash message on the
display can be changed to accommodate different reading rates.
MESSAGE TIMEOUT:
Range: 10 to 900 s in steps of 1 s
Default: 30 s
If no pushbutton has been pressed for certain period of time, the relay automatically
reverts to its default message (screen). The inactivity time is modified via this setting to
ensure messages remain on the screen long enough during programming.
SCREEN SAVER:
Range: Off, On
Default: Off
When the screen saver is set to ON, the LCD backlighting is turned off after the Message
Timeout followed by a time of 5 min, providing that no PB has been pressed and no
target messages are active. When a PB press occurs, or a target becomes active, the
LCD backlighting is turned on.
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS