Future Design MCT-CM, User Manual

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MCT-CM
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9.3 Alarms
The Alarm screen provides access to the MCT alarm module which contains up to 30 user configurable alarms.
These alarms can be assigned to any loop or monitor input in the system.
NOTE: After any and all changes made to any of
the following alarm settings, you MUST press the ‘Save’
button at the lower right of the screen in order to save the changes to the alarm. If you do not press
‘Save’ prior to leaving the screen or going to the next alarm, all changes will be lost and the alarm will
maintain its previous configuration.
The alarm number, AL# , in the upper left of the display, shows the current alarm being configured. The left and
right scroll buttons at the upper right of the screen allow the user access each alarm in the system, by pressing
left or right to go to the previous or next alarm.
The
Input selection is used to select the loop or monitor input that will be monitored by the alarm. The same
loop or monitor input can be used more than once, for any alarm.
The alarm
Type
selection is used to set the type of alarm. When set to ‘Off’, the alarm is disabled. Available
alarm type selections are as follows:
Absolute: An absolute alarm uses one or two set points to define a specific alarm value. An absolute alarm
can be set for high only, low only or both high and low.
%Out:
A percent output alarm uses one or two set points to define a specific alarm value. The alarm
can be set for high only, low only or both high and low.
NOTE: The percent output alarm type is not available for the monitor inputs. Monitor inputs do
not have control outputs.
Deviation: A deviation alarm uses one or two set points that are defined relative to the control set point.
High and low alarm set points are calculated by adding and/or subtracting offset values from the
control set point. If the set point changes, the window defined by the alarm set points
automatically changes with it. A deviation alarm can be set for high only, low only or both high
and low.
NOTE: The deviation alarm type is not available for the monitor inputs. The monitor inputs are
not associated with a control set point.
The alarm mode selections are used to select the alarm action. Available selections are as follows: