West Control Solutions N6600 - Manual (Page 94)

3.3.4 Alarm 2 Type
When this item is selected, the displays will be of the form:
the upper display indicating the current Alarm 2 type. The alarm types available
are as for Alarm 1 (see Subsection 3.3.3). The setting can be changed and
confirmed as previously described. The default setting is Process Low alarm. The
operation of the alarm types is shown in Volume 1, Figure 3-2.
3.3.5 Alarm Inhibit
When this item is selected, the displays will be of the form:
where the upper display can be one of:
On power-up, an “alarm” condition may occur, based on the alarm value, the
process variable value and, if appropriate to the alarm type, the (active) setpoint
value. This would normally activate an alarm; however, if the pertinent alarm is
inhibited, the alarm indication is suppressed and the alarm will remain inactive.
This will prevail until the “alarm” condition returns to the “inactive” state, whereafter
the alarm will operate normally.
Also, during dual setpoint operation, whenever there is switching from Setpoint 1 to
Setpoint 2 (or vice versa), similar alarm suppression will occur, if the pertinent
alarm is inhibited.
NOTE: The Alarm Inhibit function is not applied to any of the Heater Break
Alarms.
3-7 S075-3
PM-0075