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Verfügbare Sprachen
Verfügbare Sprachen
9.9.4 Control loop monitoring (setup only)
Control loop monitoring monitors the control response during startup of a plant and in the event of a set point step by
analyzing the change of the actual value during an output level change. An alarm is issued if the actual value does not
E
respond according to the specifications.
Parameter
Function
Response time
Monitoring band
Description of the function
Monitoring starts as soon as the maximum output level is produced in heating mode (see example) or as soon as the
minimum output level is produced in cooling mode. Starting from this point, the actual value must leave the monitoring
band – the range around the current value at the start of monitoring – within the response time. If it is not, an alarm is
triggered.
On leaving the monitoring band, the actual value at the time is used as a reference value for a new mon itoring band.
The response time starts over.
Monitoring ends as soon as the maximum or minimum output level is no longer produced.
Selection/text/value
Off
On
0 to 9999
0 to 9999
Product:
Temperature controller XT-T1
Description
Control loop monitoring is not active.
Control loop monitoring is active.
Time period (in seconds) in which the actual value must
leave the monitoring band.
„0" setting means:
Response time = reset time Tn
Range that the actual value must leave within the res-
ponse time.
„0" setting means:
Monitoring band = 0.5 × proportional band (Xp)
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