Programmable Leds - GE 845 Instruction Manual

CHAPTER 4: SETPOINTS

Programmable LEDs

845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Path:
Setpoints > Device > Programmable LEDs
LED "TRIP"
Range: Off, Any FlexLogic operand
Default: Any Trip
The setpoint requires assigning a FlexLogic operand to turn on the LED "TRIP", when
triggered. This indicator always latches, and a reset command must be initiated to allow
the latch to be reset.
The LED can be also triggered by the operation of a protection, control, or monitoring
element with its function selected as "Trip".
LED "ALARM"
Range: Off, Any FlexLogic operand
Default: Any Alarm
The setpoint requires assigning a FlexLogic operand to turn on the LED "ALARM", when
triggered. The indicator is a self-reset indicator, unless it is initiated from a protection,
control, or monitoring element whose function is selected as "Latched Alarm". Resetting
the Latched Alarm LED is performed by initiating a Reset command.
LED 5 (17) NAME
Range: Up to 13 alphanumeric characters
Default: LED 5
The setpoint is used to select the LED name by choosing up to 13 alphanumeric
characters.
LED 5 (17) COLOR
Range: Off, Red, Green, Orange
Default: Orange
The setpoint selects the color of the LED. Three colors are available for selection
depending on the user's preference: Red, Green, and Orange.
LED 5 (17) TRIGGER
Range: Off, Any FlexLogic operands
Default: Testing On
This setpoint requires the assigning of a FlexLogic operand to trigger the selected LED
upon operation.
LED 5 (17) TYPE
Range: Self-reset, Latched
Default: Testing On
The setpoint defines the type of LED indication as either Self-Reset (the LED resets after
the FlexLogic operand drops out), or Latched (the LED stays latched upon dropping out
of the FlexLogic operand).
Note 1:
• LED 1: IN-SERVICE – non-programmable. The LED is hardcoded to show a green light
when the relay is fully functional and an orange light when the relay is not
programmed, or experiences a self-test error.
• LED 2: TRIP - see the default setpoint above and the description
• LED 3: ALARM - see the default setpoint above and the description
• LED 4: PICKUP – non-programmable. The LED is hardcoded to show a green light
when at least one element has picked up.
DEVICE
4–55