Rockwell Automation 1440-SDM02-01RA XM-124 Standard Dynamic Measurement Module - Manuel (Page 82)

82 Rockwell Automation Publication 1440-UM001C-EN-P - May 2014
Chapter 2 Configure the XM-124 Standard Dynamic Measurement Module
Relay Parameters
The Relay parameters control the operation of the on-board relay, as well as the
relays on the Expansion Relay (XM-441) module. Use these parameters to
Threshold Multiplier The action to take when the setpoint multiplier switch is closed (push
button engaged or toggle switch flipped to on) and during the start-
up period once the switch is reopened. The module applies the
multiplier to the alarm thresholds during this time to avoid false
alarms at resonance frequencies.
Important: The multiplication may have the opposite of the intended
effect under certain circumstances. For example, if the Condition is set
to ‘Less Than’ and the thresholds are positive, then multiplication of
the threshold values increases the likelihood of the measured value
being within the alarm range. Therefore, you may want to set
Threshold Multiplier to zero to disable the alarm during the start-up
period. Enter a floating point value in the range of 0…10.
Enter 0 (zero) to disabled the alarm during the
start-up period.
Speed Range Enable Controls whether the selected alarm is enabled only when the
measured speed is within a machine speed range. Enter the machine
speed range in Speed Range High and Speed Range Low.
Important: The tachometer must be enabled
(Pulses Per Revolution set to 1 or more) and a
tachometer signal must be provided at the
tachometer input when Speed Range Enable is
enabled.
Important: You cannot enable the Speed Range
parameter when alarm Measurement is set to
‘Speed.’ See
page 71 .
Speed Range Low The lesser threshold of the machine speed range. This value must be
less than the Speed Range High value.
This parameter is not used when Speed Range Enabled is disabled. rpm
Speed Range High The greater threshold of the machine speed range. This value must be
greater than the Speed Range Low value.
This parameter is not used when Speed Range Enabled is disabled. rpm
Table 7 - Alarm Parameters
Parameter Name Description Values/Comments
XM Configuration
Utility EDS File
Check to Enable Enabled
Clear to Disable Disabled