GE N60 Instruction Manual page 125

Network stability and synchrophasor measurement system
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CHAPTER 4: INTERFACES
PHASE A — This LED indicates phase A was involved
PHASE B — This LED indicates phase B was involved
PHASE C — This LED indicates phase C was involved
NEUTRAL/GROUND — This LED indicates that neutral or ground was involved
The user-programmable LEDs consist of 48 amber LED indicators in four columns. The operation of these LEDs is user-
defined. Support for applying a customized label beside every LED is provided. Default labels are shipped in the label
package of every N60, together with custom templates. The default labels can be replaced by user-printed labels.
User customization of LED operation is of maximum benefit in installations where languages other than English are used
to communicate with operators. See the User-Programmable LEDs section in chapter 5 for the settings used to program
the operation of the LEDs on these panels.
4.2.7.2 Standard faceplate
The standard faceplate consists of three panels with LED indicators, keys, and a communications port. The
used to reset any latched LED indicator or target message, once the condition has been cleared (these latched conditions
can also be reset via the
SETTINGS  INPUT/OUTPUTS  RESETTING
computer.
The
keys are used by the breaker control feature.
USER
Status indicators
IN SERVICE — Indicates that control power is applied, all monitored inputs/outputs and internal systems are fine, 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. For more information, see the Test Mode section in the Settings
chapter.
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.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
menu). The RS232 port is for connection to a
Figure 4-23: LED panel 1
FRONT PANEL INTERFACE
key is
RESET
4-21
4

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