Led Indicators - GE UR Series Instruction Manual

4 HUMAN INTERFACES
a) LED PANEL 1
This panel provides several LED indicators, several keys, and a communications port. The RESET key is used to reset any
latched LED indicator or target message, once the condition has been cleared (these latched conditions can also be reset
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via the
SETTINGS INPUT/OUTPUTS
RS232 port is intended for connection to a portable PC.
STATUS INDICATORS:
• IN SERVICE: Indicates that control power is applied; all monitored I/O and internal systems are OK; the relay has been
programmed.
• TROUBLE: Indicates that the relay has detected an internal problem.
• TEST MODE: Indicates that the relay is in test mode.
• 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.
• NEUTRAL/GROUND: Indicates neutral or ground was involved.
GE Power Management
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menu). The USER keys are used by the Breaker Control feature. The
RESETTING
Figure 4–4: LED PANEL 1
L90 Line Differential Relay
4.2 FACEPLATE INTERFACE

4.2.2 LED INDICATORS

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