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Parameter
Function
Determination time
Output level band
Alarm delay
Controller differential band
Description of the function
Once the output level monitoring has been activated, determination of the mean output level starts as soon as the
actual value is within the controller differential band. When the mean output level has been determined, the current
output level must be within the monitored output level band. If it is not, an alarm is triggered.
In the event of a setpoint value change, output level monitoring is temporarily deactivated until the actual value returns
to the control differential band. The mean output level is then determined again.
x
y
x
Actual value
y
Output level
T
Alarm delay
D
Application examples:
•
Monitoring of signs of aging and faults on heating elements
•
Reporting of faults during operation
Product:
Temperature controller XT-T1
Selection/text/value
Off
On
0 to 9999 (350)
0 to 100 (10)
0 to 9999
0 to 9999 (1)
Revision 2.0 – Issue September 2018
Description
Output level monitoring is not active.
Output level monitoring is active.
Calculation time (in seconds) for the mean output level
Monitored output level band (admissible range around
the mean output level)
Delay time (in seconds) for alarm triggering
Controller differential band (admissible range around the
actual value in corrected state)
T
A
T
D
Controller differential band
Dx
Monitored output level band
Dy
Alarm period
T
A
Dx
t
Dy
t
129 /166
E
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