CHAPTER 4: INTERFACES
FRONT PANEL OVERVIEW
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
73
Figure 51: Example disturbance record
Equipment manager menu
This menu provides access to the equipment manager battery monitor function. There are
three status indicators, colored red, yellow, and green.
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A green indication denotes no alarms for the device.
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A yellow indication denotes at least one non-critical alarm and no critical alarms.
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A red indication denotes at least one critical alarm.
The battery monitor page displays the state of all battery monitor alarms for a particular
device. Alarms can also be reset from this page.
Figure 52: Equipment manager battery monitor alarms example
Annunciator
The annunciator is a color TFT panel located that emulates the functionality found in a
conventional annunciator unit.
Annunciator operation
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 once every half second.