Application; Theory Of Operation - ABB REC 561 User Manual

ABB Network Partner AB
Version 1.0-00
October 1996
Function:

1 Application

2 Theory of operation

3 Setting
Event recorder - Station
Monitoring System
Basic
When using a front-connected PC or Station Monitoring System (SMS),
an event list can be available for each of the recorded disturbances in the
disturbance report. Each list can contain up to 150 time-tagged events.
These events are logged during the total recording time, which depends on
the set recording times (pre-fault, post-fault and limit time) and the actual
fault time. During this time, the first 150 events for all the 48 selected
binary signals are logged and time tagged. This list is a useful instrument
for evaluating a fault and is a complement to the disturbance recorder.
To obtain this event list, the Event recorder function (basic in some termi-
nals and optional in others) must be installed.
When one of the trig conditions for the Disturbance report is activated, the
events are collected by the main processing unit, from the 48 selected
binary signals. The events can come from both internal logical signals and
binary input channels. The internal signals are time tagged in the main
processing module, while the binary input channels are time tagged
directly on each I/O module. The events are collected during the total
recording time, tRecording, and they are stored in the Disturbance report
memory at the end of each recording.
The name of the binary input signal that appears in the event list is the
user-defined name that can be programmed in the terminal.
The time tagging of events emerging from internal logical signals and
binary input channels have a resolution of 1 ms.
The settings of the Event recorder consist of the signal selection and the
recording times. It is possible to select up to 48 binary signals, either
internal signals or signals coming from binary input channels. These sig-
nals coincide with the binary signals recorded by the disturbance
recorder. The disturbance summary indications that are to scroll automat-
ically on the built-in, man-machine interface (MMI), can only be selected
from these 48 event channels.
The signal selection is found at:
Settings
DisturbReport
Each of the up to 48 event channels can be selected from the signal list,
consisting of all available internal logical signals and all binary input
channels.
BinarySignals
Input n (1 - 48)
1MRK 580 139-XEN
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