Figure 4.2
Typical alarm parameters in PICUS
#
Parameter
Range
Notes
1
Set point
Varies
The setting at which the alarm is triggered.
Must be considered with
Trigger level
setting.
2
Reset hysteresis
Varies
See
Reset hysteresis
for more information.
3
Delay
Varies
Delay before the alarm becomes active.
4
Trigger level (fixed)*
High, Low
Whether the alarm is triggered at a
High
or
Low
setting.
5
Auto acknowledge
Not enabled,
Enabled
If
Enabled
the alarm is automatically acknowledged when it occurs.
6
Alarm test
Start test, Stop
test
Selecting
Start test
starts an alarm test for the selected protection.
CAUTION
Starting an alarm test also activates the alarm action.
Selecting
Stop test
stops the alarm test for the selected protection.
7
Additional alarm
information
Varies
Shows additional information about the state of the alarm.
8
Suppress action
Not enabled,
Enabled
If
Enabled
the alarm action is suppressed. The alarm message will appear
in the alarm list.
9
Latch
Not enabled,
Enabled
If
Enabled
the alarm is latched when it occurs and requires both
acknowledgement and reset (unlatch) to clear.
10
Enable
Not enabled,
Enabled
If the alarm is enabled or not enabled in the controller.
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