ABB C310 Programming Manual page 41

...4 CONFIGURATION
...4.11 Set Up Alarms Page
High Deviation
Positive Trip
Value
Process
Variable
High Deviation
(Positive Trip)
Control
Set Point
Process
Variable
High Deviation
(Negative Trip)
Process
Variable
Control
Set Point
Low Deviation
(Positive Trip)
Process
Variable
Low
Deviation
Negative
Trip Value
Low Deviation
(Negative Trip)
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A – High Deviation (Positive Trip) with Hysteresis
B – High Deviation (Negative Trip) with Hysteresis
C – Low Deviation (Positive Trip) with Hysteresis
D – Low Deviation (Negative Trip) with Hysteresis
Fig. 4.11 High and Low Deviation with Hysteresis
Hysteresis Value
Control
Set Point
Alarm On
Alarm Off
High Deviation
Negative Trip Value
Hysteresis Value
Alarm On
Alarm Off
Hysteresis Value
Low Deviation
Positive Trip Value
Alarm On
Alarm Off
Control
Set Point
Hysteresis Value
Alarm On
Alarm Off