86
30 Alarms operating
Three alarms can be programmed and be connected to outputs
OUT, A1, A2 ( if they are not used for control). The following
graphs describe the programmable operatings.
Band alarm (setpoint-process)
Comparison value
Hysteresis
Hysteresis
Time
OUT/A1/A2
P-14/P-16
Alarm can be :
•
active outside band
•
active inside band
Example: outside
Deviation alarm (setpoint-process)
Time
Comparison value
Hysteresis
OUT/A1/A2
P-14/P-16
Alarm can be :
•
active above comparison value
•
active below comparison value
Example: upper deviation
General alarm (process)
Comparison value
Hysteresis
Time
P-14/P-16
OUT/A1/A2
Alarm can be :
•
active over process value
•
active below process value
Example: above process value
