Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module - Manual (Page 79)

Publication GMSI10-UM003D-EN-P - May 2010
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SU/CD Trend Parameters The XM-123 can collect startup or coast-down trend data when the machine
speed passes into a defined speed range. A tachometer input is required to
collect the startup/coast-down trend.
The XM module collects a startup trend when the machine speed rises
through the Minimum Speed + 8 RPM, and stops when the machine speed
crosses either the Minimum Speed or the Maximum Speed. The module
collects data only when machine speed is increasing. It does not collect data if
the machine speed is constant or decreasing.
Record Interval The amount of time between consecutive trend
records.
Note: If you enter a Record Interval, the Trend Span
is automatically updated.
1 to 3600 seconds
Trend Span The total amount of time that can be covered by the
trend data (Number of Records x Record
Interval).
Note: If you edit the Trend Span, the Record
Interval is automatically updated.
Seconds
Post Trigger The percentage of records to be collected once the
trigger occurs. For example, if you set Post Trigger to
20%, then 80% of the records in the trend are before
the trigger occurs, and 20% of the records in the
trend are after the trigger occurs.
This allows you to evaluate what happened after the
trigger occurred.
0 to 100 Percent
Status Shows the status of the trend data. Possible status values:
•
Not collected - No trend data is
currently collected.
•
Collecting - A trigger has occurred
and data (including post-trigger
data) is being collected.
•
Collected - A trend has been saved
to the buffer and is available to view
and upload.
View Trend Data Displays a plot of the collected trend data.
Reset Trigger Resets the trigger if Latch enabled is selected. This
allows the module to overwrite the previous trend
data when the next trigger occurs.
Manual Trigger Triggers the module to collect the trend data without
relay activation.
Triggered Trend Parameters
Parameter Name Description Values/Comments