Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-2 September 2014
Page 206
Alarm Operation
The process and control deviation alarm types are illustrated, together with the action of any
associated outputs.
Also refer to: Alarm Hysteresis; Alarm Inhibit; Alarm Types; Band Alarm Value; Deviation
Alarm; Latching Relay; Logical Alarm Combinations; Loop Alarm; Process High Alarm and
Process Low Alarm.
Figure 64.
Alarm Operation
Process High Alarm
Direct Acting
Process High Alarm
Reverse Acting
Process Low Alarm
Direct Acting
Process Low Alarm
Reverse Acting
Band Alarm
Direct Acting
Band Alarm
Reverse Acting
Deviation High
Alarm (+ve values)
Direct Acting
Deviation High
Alarm (+ve values)
Reverse Acting
Deviation Low
Alarm (+ve values)
Direct Acting
Deviation Low
Alarm (+ve values)
Reverse Acting
Output Off
Alarm Off
Output Om
Alarm Off
Output On
Alarm On
Alarm Value
Om
Alarm On
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Alarm Value
Om
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Process Variable
Output On
Output On
Output On
Output On
Output On
Output On
Output On
Output On
Output On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Alarm On
Output Off
Alarm Off
Output Off
Output Off
Alarm Off
Output Off
Alarm Off
Alarm Off
Output Off
Output Off
Output Off
Alarm Off
Output Off
Alarm Off
Output Off
Alarm Off
Output Off
Alarm Off
Setpoint
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