Rugged And Membrane Front Panel Leds - GE 889 Instruction Manual

FRONT CONTROL PANEL INTERFACE

Rugged and Membrane Front Panel LEDs

3–8
Front panel LED details:
• Number of LEDs: 17
• Programmability: Any FlexLogic operand
• Reset mode: self-reset or latched
The 889 front panel provides two columns of 7 LED indicators each, and 3 LED pushbutton
indicators. The "IN-SERVICE" (LED 1) and the "PICKUP" (LED 4) indicators from the first LED
column are non-programmable LEDs. The bottom 3 LED indicators from the first column,
and the 7 LED indicators from the second LED column are fully programmable. The
indicators "TRIP" (LED 2), and "ALARM" (LED 3), are also programmable, and can be
triggered by either a selection of FlexLogic operand assigned in their own menu, or by the
operation of any protection, control or monitoring element with function selected as Trip,
Alarm, or Latched Alarm.
The RESET key is used to reset any latched LED indicator or Target Message once the
condition has been cleared (latched conditions can also be reset via the RESETTING menu).
Figure 3-9: LED numbering
Figure 3-10: Typical LED Indicator Panel
LED 1
LED 8
LED 2
LED 9
LED 3
LED 10
LED 4
LED 11
LED 5
LED 12
LED 6
LED 13
LED 7
LED 14
LED 15
LED 16 LED 17
889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 3: INTERFACES