39
…4.11
Set Up Alarms Page
Fig. 4.13 Fast Rate Alarms with Hysteresis
Fig. 4.12 Slow Rate Alarms with Hysteresis
4
CONFIGURATION…
10.1
Examples shown are for a trip value of 10%/hour on a PV engineering range of 0.0 to 100.0
Alarm On
Alarm Off
Falling Slow Rate
Rising Slow Rate
1 hour
9.5
T
Alarm On
Alarm Off
1 hour
10.1
1 hour
9.5
1 hour
T
T
T
T = 10.81 + x 2
1800
10
T = 382 seconds
The maximum time it takes to detect an alarm
condition is present (T), in seconds, is
calculated as follows:
T = 10.81 +
x 2
The time it takes for the alarm state to be
cleared once the alarm condition has been
removed is also equal to T.
1800
Trip Value
Alarm On
Alarm Off
Falling Fast Rate
Alarm On
Alarm Off
Rising Fast Rate
10.1
1 hour
1 hour
9.5
1 hour
9.5
T
T
1 hour
10.1
T
T
Examples shown are for a trip value of 10%/hour on a PV engineering range of 0.0 to 100.0
T = 10.81 + x 2
1800
10
T = 382 seconds
The maximum time it takes to detect an alarm
condition is present (T), in seconds, is
calculated as follows:
T = 10.81 +
x 2
The time it takes for the alarm state to be
cleared once the alarm condition has been
removed is also equal to T.
1800
Trip Value
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