Rockwell Automation 1440-VSE02-01RA XM-122 gSE Vibration Module - Manual (Page 97)

Publication GMSI10-UM013D-EN-P - May 2010
Configuration Parameters 87
Maximum Trend Span The maximum change in speed 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.
RPM
Minimum Speed The lesser limit of the speed range in which records
are collected in the startup/coast-down trend. This
value must be less than the Maximum Speed
value. RPM
Startup/Coast-down Trend
Considerations:
•
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
the machine is increasing. It does
not collect data if the machine
speed is constant or decreasing.
•
The XM module collects a
coast-down trend when the machine
speed falls through the Maximum
Speed - 8 RPM, and stops when the
machine speed crosses either the
Minimum Speed or the Maximum
Speed. The module collects data
when the machine speed is
decreasing or increasing during a
coast-down trend (for example, a
coast-down restart).
Maximum Speed The greater limit of the speed range in which records
are collected in the startup/coast-down trend. This
value must be greater than the Minimum Speed
value.
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 is being collected.
•
Collected - A trend has been saved
to the buffer and is available to view
or 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 machine speed crosses into the speed
range.
SU/CD Trend Parameters
Parameter Name Description Values/Comments