Alarms And Events; Overview; Product Description; Event Log And Alarm/Warning - ABB TruFit User Manual

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4 Alarms and Events

All referenced voltages and currents are based on the standard 480 -208/120V units. See as built
documents and/or unit nameplate for unit specific voltages.
4.1

Overview

Alarms and events are conveyed to the user through the Display Module's graphical user interface and
audible alarm. Alarm and warning threshold levels are configured in the installed PowerView metering
module. PowerView will monitor various voltages & currents in a power distribution panel, will also
compute various other parameters such as power, energy, demand, frequency, power factor, etc. Finally,
PowerView provides the Modbus connection to interface with a building management system.
4.2

Product description

The PowerView metering module will acquire the voltage & current signals from an analog signal
conditioning board. It will calculate energy and power quality parameters. These parameters are passed
to the display board/PC for display and data logging. It will also receive control/command/system
parameter data from display board or a third-party display module.
4.3

Event Log and alarm/warning

4.3.1 Overview
System events are logged in the Event Log. Each event contains the following attributes:
1. Timestamp
2. Severity of event (
3. Active state (
4. Acknowledgement state (
5. Event description
Some events remain active in the Event Log if the event status is true. The event becomes
inactive only when the condition is cleared. For example, an event triggered by a metered value
that exceeds a high limit will remain active until that metered value falls back below the high limit.
Some alarm/warning events also require acknowledgement from the user after they become
inactive. This will be discussed below. Other types of alarm/warning events do not require
acknowledgement.

4.3.2 Viewing events

The events can be viewed in the Event Log by clicking the Event icon
The Event Log displays the number of active events.
28 94-1100-00002874 A0 EN│TruFit™ Power Distribution Unit
Information,
)
)
Warning, Alarm).
.