GE L60, Instruction Manual, Page: 101 / 498

GE Multilin L60 Line Phase Comparison Relay 5-9
5 SETTINGS 5.2 PRODUCT SETUP
5
The
UNAUTHORIZED ACCESS
operand is reset with the
COMMANDS CLEAR RECORDS RESET UNAUTHORIZED
ALARMS
command. Therefore, to apply this feature with security, the command level should be password-protected. The
operand does not generate events or targets. If these are required, the operand can be assigned to a digital element pro-
grammed with event logs and/or targets enabled.
If the Setting and Command passwords are identical, this one password allows access to both commands
and settings.
When EnerVista UR Setup is used to access a particular level, the user will continue to have access to that
level as long as there are open windows in the EnerVista UR Setup software. To re-establish the password
security feature, all windows must be closed for at least 30 minutes.
5.2.2 DISPLAY PROPERTIES
PATH: SETTINGS PRODUCT SETUP DISPLAY PROPERTIES
Some relay messaging characteristics can be modified to suit different situations using the display properties settings.
• LANGUAGE : This setting selects the language used to display settings, actual values, and targets. The range is
dependent on the order code of the relay.
• FLASH MESSAGE TIME : Flash messages are status, warning, error, or information messages displayed for several
seconds in response to certain key presses during setting programming. These messages override any normal mes-
sages. The duration of a flash message on the display can be changed to accommodate different reading rates.
• DEFAULT MESSAGE TIMEOUT : If the keypad is inactive for a period of time, the relay automatically reverts to a
default message. The inactivity time is modified via this setting to ensure messages remain on the screen long enough
during programming or reading of actual values.
• DEFAULT MESSAGE INTENSITY : To extend phosphor life in the vacuum fluorescent display, the brightness can be
attenuated during default message display. During keypad interrogation, the display always operates at full brightness.
• SCREEN SAVER FEATURE and SCREEN SAVER WAIT TIME : These settings are only visible if the L60 has a liquid
crystal display (LCD) and control its backlighting. When the
SCREEN SAVER FEATURE
is “Enabled”, the LCD backlighting
is turned off after the
DEFAULT MESSAGE TIMEOUT
followed by the
SCREEN SAVER WAIT TIME
, providing that no keys
have been pressed and no target messages are active. When a keypress occurs or a target becomes active, the LCD
backlighting is turned on.
• CURRENT CUT-OFF LEVEL : This setting modifies the current cut-off threshold. Very low currents (1 to 2% of the
rated value) are very susceptible to noise. Some customers prefer very low currents to display as zero, while others
prefer the current be displayed even when the value reflects noise rather than the actual signal. The L60 applies a cut-
off value to the magnitudes and angles of the measured currents. If the magnitude is below the cut-off level, it is substi-
DISPLAY
PROPERTIES
LANGUAGE:
English
Range: English; English, French; English, Russian;
English, Chinese
(range dependent on order code)
MESSAGE
FLASH MESSAGE
TIME: 1.0 s
Range: 0.5 to 10.0 s in steps of 0.1
MESSAGE
DEFAULT MESSAGE
TIMEOUT: 300 s
Range: 10 to 900 s in steps of 1
MESSAGE
DEFAULT MESSAGE
INTENSITY: 25 %
Range: 25%, 50%, 75%, 100%
Visible only if a VFD is installed
MESSAGE
SCREEN SAVER
FEATURE: Disabled
Range: Disabled, Enabled
Visible only if an LCD is installed
MESSAGE
SCREEN SAVER WAIT
TIME: 30 min
Range: 1 to 65535 min. in steps of 1
Visible only if an LCD is installed
MESSAGE
CURRENT CUT-OFF
LEVEL: 0.020 pu
Range: 0.002 to 0.020 pu in steps of 0.001
MESSAGE
VOLTAGE CUT-OFF
LEVEL: 1.0 V
Range: 0.1 to 1.0 V secondary in steps of 0.1
NOTE
NOTE