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12 Configuration
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 control 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 deter-
mined again.
Application examples:
• Monitoring of signs of aging and faults on heating elements
• Reporting of faults during operation
Functional limitations
Output level monitoring is not active in the following cases:
• Proportional band Xp = 0
• Autotuning active
• Manual mode
• Ramp function active
• Controller operating as program controller
• Three-step controller without output level feedback (or output level feedback in "out of
range" status)
• Position controller with output level feedback in "out of range" status
x Actual value Δx Control differential band
y Output level Δy Monitored output level band
T
D
Alarm delay T
A
Alarm period
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