ABB SM3000 User Manual page 91

...4.6.4 Alarm Configuration
N
ote. The Alarm Configuration tabs are displayed only if 'Source ID' for the Recording Channel is set to an analog signal
source – see Section 4.6.1.
Set the alarm type:
High/Low process
High/Low latch
High/Low annunciate
Fast/Slow rate
Delayed high/low process
Enter an Alarm Tag to identify the alarm when it is displayed
in the Chart, Process and Alarm Event views (20 characters
max.).
Set the value, in engineering units, at which the alarm is to
activate.
Note. Process, Delayed process, Latch and Annunciate
alarms only.
Set the hysteresis value, in engineering units.
Note. Process, Delayed process, Latch and Annunciate
alarms only.
Process Variable
High Trip
Low Trip
Set the time hysteresis value, in seconds. When an alarm trip
value is exceeded, the alarm does not become active until
the time hysteresis value has expired. If the signal goes out of
the alarm condition before the time hysteresis has expired,
the hysteresis value is reset.
Note. Process, Latch and Annunciate alarms only.
Output
0 40
Time in seconds (s)
Timer Timer Timer
Started Reset Started
Set the period of time for which to delay alarm activation after
the enable signal is switched on. Once the delay time has
expired, the alarm operates in the same way as a standard
process alarm.
Note. Delayed process alarms only.
4 CONFIGURATION...
– see Fig. 4.14
– see Fig. 4.15
– see Fig. 4.16
– see Fig. 4.17
– see Fig. 4.18
Hysteresis
Trip Point
Hysteresis
Alarm On
Alarm Off
Alarm On
Alarm Off
Alarm
Trip Point
70 130
Alarm On
0
Alarm Off
Hysteresis Timer
Time Reset
Elapsed
89