GE L60, Instruction Manual, Page: 121 / 498

GE Multilin L60 Line Phase Comparison Relay 5-29
5 SETTINGS 5.2 PRODUCT SETUP
5
APPLICATION EXAMPLE 1:
Assume one needs to check if any of the LEDs is “burned” through User-Programmable Pushbutton 1. The following set-
tings should be applied. Configure User-Programmable Pushbutton 1 by making the following entries in the
SETTINGS
PRODUCT SETUP USER-PROGRAMMABLE PUSHBUTTONS USER PUSHBUTTON 1
menu:
PUSHBUTTON 1 FUNCTION:
“Self-reset”
PUSHBTN 1 DROP-OUT TIME:
“0.10 s”
Configure the LED test to recognize User-Programmable Pushbutton 1 by making the following entries in the
SETTINGS
PRODUCT SETUP USER-PROGRAMMABLE LEDS LED TEST
menu:
LED TEST FUNCTION:
“Enabled”
LED TEST CONTROL:
“
PUSHBUTTON 1 ON
”
The test will be initiated when the User-Programmable Pushbutton 1 is pressed. The pushbutton should remain pressed for
as long as the LEDs are being visually inspected. When finished, the pushbutton should be released. The relay will then
automatically start Stage 2. At this point forward, test may be aborted by pressing the pushbutton.
APPLICATION EXAMPLE 2:
Assume one needs to check if any LEDs are “burned” as well as exercise one LED at a time to check for other failures. This
is to be performed via User-Programmable Pushbutton 1.
After applying the settings in Application Example 1, hold down the pushbutton as long as necessary to test all LEDs. Next,
release the pushbutton to automatically start Stage 2. Once Stage 2 has started, the pushbutton can be released. When
Stage 2 is completed, Stage 3 will automatically start. The test may be aborted at any time by pressing the pushbutton.
c) TRIP AND ALARM LEDS
PATH: SETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDS TRIP & ALARM LEDS
The Trip and Alarm LEDs are on LED Panel 1. Each indicator can be programmed to become illuminated when the
selected FlexLogic™ operand is in the Logic 1 state.
d) USER-PROGRAMMABLE LED 1(48)
PATH: SETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDS USER-PROGRAMMABLE LED 1(48)
There are 48 amber LEDs across the relay faceplate LED panels. Each of these indicators can be programmed to illumi-
nate when the selected FlexLogic™ operand is in the Logic 1 state.
• LEDs 1 through 24 inclusive are on LED Panel 2; LEDs 25 through 48 inclusive are on LED Panel 3.
Refer to the LED Indicators section in Chapter 4 for the locations of these indexed LEDs. This menu selects the operands
to control these LEDs. Support for applying user-customized labels to these LEDs is provided. If the
LED X TYPE
setting is
“Self-Reset” (default setting), the LED illumination will track the state of the selected LED operand. If the
LED X TYPE
setting
is ‘Latched’, the LED, once lit, remains so until reset by the faceplate RESET button, from a remote device via a communi-
cations channel, or from any programmed operand, even if the LED operand state de-asserts.
TRIP & ALARM LEDS TRIP LED INPUT:
Off
Range: FlexLogic™ operand
MESSAGE
ALARM LED INPUT:
Off
Range: FlexLogic™ operand
USER-PROGRAMMABLE
LED 1
LED 1 OPERAND:
Off
Range: FlexLogic™ operand
MESSAGE
LED 1 TYPE:
Self-Reset
Range: Self-Reset, Latched