Annunciator Panel; Annunciator Operation - GE D90 Plus Instruction Manual

ANNUNCIATOR PANEL

Annunciator panel

Annunciator operation

582
The annunciator indicates the status of system alarm points and actual values. It displays
self-test messages and product information for the unit.
The annunciator supports three types of alarms: self-reset, latched, and acknowledgeable.
Each location in an annunciator display page can be configured to be one of the three
alarm types and can also display an optional metered value. The value of each self-reset
alarm is refreshed approximately every half second.
Alarms are organized in a table and numbered increasing from left to right horizontally and
then top to bottom. The first alarm in the top left corner of the first page is denoted as
indicator 1 by the EnerVista UR
the bottom right alarm number on the previous page plus one. Up to 288 individual alarms
or metered values can be configured.
Each location in the alarm table can be configured as an alarm only, metering only, or
mixed content. With the exception of metering only table entries, a FlexLogic alarm input
operand is required for each alarm table location. Selecting an operand of "None" hides
the entry from view.
Alarms can display up to three lines of text using specified foreground and background
colors. A configured metering value replaces the specified line of text. The figure shows a
typical annunciator display.
Figure 508: Typical annunciator display
There are three control buttons at the bottom of the display.
• The Next Page button navigates through the configured alarm, self-test, and product
information pages. Pages that contain no configured alarms are not displayed.
• The Next Alarm button navigates horizontally through the current alarms that are
active, from left-to-right, starting with the first row of alarms. A border is drawn
around the current alarm.
• The Ack/Reset button is used to acknowledge alarms or reset latched and
acknowledgeable alarms that are in the ringback state.
The annunciator alarm sequence conforms to ISA 18.1-1979 (R1992) standard, type R.
Plus
Setup software. The top left location of the next page is
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 12: LOCAL INTERFACE