Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module - Manual (Page 68)

Publication GMSI10-UM014D-EN-P - May 2010
60 Configuration Parameters
Controls whether the relay must be explicitly reset
after the alarm subsides.
Activation Delay Enter the length of time for which the Activation
Logic must be true before the relay is activated. This
reduces nuisance alarms caused by external noise
and/or transient vibration events.
Important: True Peak and True Peak-to-Peak signal
detection is more sensitive to transients and noise.
To avoid false relay trips, it is strongly recommended
that the Activation Delay value is greater than the
Overall Time Constant value when Signal
Detection is set to "True Peak" or "True
Peak-to-Peak." Refer to Overall Measurement
Parameters on page 48.
Enter a value from 0 to 25.5 seconds,
adjustable in increments of 0.1
seconds.
Default is 1 second
Sets the relay activation logic.
•
A or B - Relay is activated when either Alarm A or
Alarm B meets or exceeds the selected Alarm
Status condition(s).
•
A and B - Relay is activated when both Alarm A
and Alarm B meet or exceed the selected Alarm
Status condition(s).
•
A Only - Relay is activated when Alarm A meets
or exceeds the selected Alarm Status
condition(s).
Options: A only
A or B
A and B
Sets the alarm(s) that the relay will monitor. The
alarm must be from the same device as the relay.
When the Activation Logic is set to "A and B" or "A
or B," you can select an alarm in both Alarm A and
Alarm B. The system monitors both alarms. When
the Activation Logic is set to "A Only," you can
select only an alarm in Alarm A. Options: Ch 1 SR Overall
Ch 2 CA Overall
Ch 1 SR 1X Magnitude
Ch 2 CA 1X Magnitude
Shaft Absolute Overall
Shaft Absolute 1X Magnitude
Ch 1 DC Bias
Ch 2 DC Bias
Speed
Note: You can only select an alarm
that is enabled.
Relay Parameters
Parameter Name Description Options/Comments
XM Configuration
Utility EDS File
Latching Latching
Option
XM Configuration
Utility EDS File
Check means
latching (relay must
be explicitly reset) Latching
Clear means
non-latching (relay
is reset once the
alarm condition has
passed) Nonlatching
XM Configuration
Utility EDS File
Activation Logic Logic
XM Configuration
Utility EDS File
Alarm A/B Alarm
Identifier
A/B