Pixsys ATR620 - ATR620 Alarm Operating Modes; Band Alarm (Setpoint-Process); Deviation Alarm (Setpoint-Process); General Alarm (Process)

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