GE L90 Instruction Manual page 122
L90 line current differential system ur series
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- Instruction manual (900 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (470 pages)
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4.3 FACEPLATE INTERFACE
•
TRIP: Indicates that the selected FlexLogic™ operand serving as a Trip switch has operated. This indicator always
latches; the reset command must be initiated to allow the latch to be reset.
•
ALARM: Indicates that the selected FlexLogic™ operand serving as an Alarm switch has operated. This indicator is
never latched.
•
PICKUP: Indicates that an element is picked up. This indicator is never latched.
EVENT CAUSE INDICATORS:
These indicate the input type that was involved in a condition detected by an element that is operated or has a latched flag
waiting to be reset.
•
VOLTAGE: Indicates voltage was involved.
•
CURRENT: Indicates current was involved.
•
FREQUENCY: Indicates frequency was involved.
•
OTHER: Indicates a composite function was involved.
•
PHASE A: Indicates phase A was involved.
•
PHASE B: Indicates phase B was involved.
•
PHASE C: Indicates phase C was involved.
4
•
NEUTRAL/GROUND: Indicates that neutral or ground was involved.
USER-PROGRAMMABLE INDICATORS:
The second and third provide 48 amber LED indicators whose operation is controlled by the user. Support for applying a
customized label beside every LED is provided.
User customization of LED operation is of maximum benefit in installations where languages other than English are used to
communicate with operators. Refer to the User-programmable LEDs section in chapter 5 for the settings used to program
the operation of the LEDs on these panels.
USER-PROGRAMMABLE LEDS
DEFAULT LABELS FOR LED PANEL 2:
The default labels are intended to represent:
•
GROUP 1...6: The illuminated GROUP is the active settings group.
•
BREAKER 1(2) OPEN: The breaker is open.
•
BREAKER 1(2) CLOSED: The breaker is closed.
•
BREAKER 1(2) TROUBLE: A problem related to the breaker has been detected.
•
SYNCHROCHECK NO1(2) IN-SYNCH: Voltages have satisfied the synchrocheck element.
•
RECLOSE ENABLED: The recloser is operational.
•
RECLOSE DISABLED: The recloser is not operational.
•
RECLOSE IN PROGRESS: A reclose operation is in progress.
•
RECLOSE LOCKED OUT: The recloser is not operational and requires a reset.
4-16
Figure 4–20: LED PANELS 2 AND 3 (INDEX TEMPLATE)
L90 Line Current Differential System
4 HUMAN INTERFACES
USER-PROGRAMMABLE LEDS
842782A1.CDR
GE Multilin
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