Rockwell Automation 1440-DYN02-01RJ XM Dynamic Measurement Module - Manuel (Page 80)

80 Publication ICM-UM002F-EN-E - March 2013
Chapter 3 Configure XM Module in RSLogix 5000 Software
Deadband Enter the amount that the measured value must fall
(below the limit) before the alarm condition is cleared.
For example, Alert High Limit is 120 and the deadband
is 2. The alarm (alert) activates when the measured
value is 120 and will not clear until the measured
value is 118 or less. Set the value between 0...9999.
Note: For the Outside Range condition, the
deadband value must be less than the Alert
High Limit - Alert Low Limit.
Danger High Limit Enter the High Limit value for the danger (shutdown)
condition. This parameter is the greater value when
Condition is set to Inside Range or Outside Range, or
the measurement is a phase measurement. Phase measurement requirements:
• The Alert Low, Danger Low, Alert High, and
Danger High must define contiguous
sections within the set of possible phase
values (0...360 degrees).
• If you were to plot the thresholds on a
clock face (illustration below) with phase
increasing in the clockwise direction, then:
• Alert Low must be clockwise from or
equal to Danger Low.
• Alert High must be clockwise from
Alert Low.
• Danger High must be clockwise from or
equal to Alert High.
Alert High Limit Enter the High Limit value for the alert (alarm)
condition. This parameter is the greater value when
Condition is set to Inside Range or Outside Range, or
the measurement is a phase measurement.
Alert Low Limit Enter the lesser limit value for the alert (alarm)
condition. This parameter is not used when Condition
is set to Greater Than or Less Than.
Danger Low Limit Enter the lesser limit value for the danger (shutdown)
condition. This parameter is not used when Condition
is set to Greater Than or Less Than.
Limit Multiplier Enter a value to be applied when the
AlarmLimitMultiply bit in Output tag is set to 1.
The module applies the multiplier to the alarm limits
during this time to avoid false alarms at resonance
frequencies.
Set the value between 0...10.
Note: Enter 0 (zero) to disable the alarm
during the startup period.
Limit Multiplier Period Enter the length of time that the Limit Multiplier is
applied to the threshold. Set the value between 0...65535.
Enable Speed Range Check to enable the speed range alarm.
Clear to disable the speed range alarm.
Controls whether the selected alarm is
enabled only when the measured speed is
within a machine speed range.
Note: You cannot enable the Speed Range
alarm when the Measurement ID is set to
Speed.
Speed Range High Enter the greater threshold of the machine speed
range. These parameters are dimmed when Enable
Speed Range is disabled.
Speed Range Low Enter the lesser threshold of the machine speed range.
In this field Values are Comments