X.time; Limiting The Control Speed - Burkert 8791 Manuel D'utilisation

10.2.4 X.TIME -

limiting the control speed
Use this function to specify the opening and closing times for the entire stroke and thereby limit control speeds.
When the X.TUNE function is running, the minimum opening and closing time for the entire stroke is auto-
matically entered for Open and Close. Therefore, movement can be at maximum speed.
Factory setting: values determined at the factory by the X.TUNE function
If the control speed will be limited, values can be input for Open and Close which are between the minimum
values determined by the X.TUNE and 60 seconds.
Valve timeopen: Opening time for entire stroke (in seconds)
Adjustment range: 1 – 60 seconds
Valve timeclose: Closing time for entire stroke (in seconds)
Adjustment range: 1 – 60 seconds
effect of limiting the opening speed when there is a jump in the set-point value
Valve stroke [%]
Figure 19: X.TIME graph
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Set-point
value
Actual value
Open
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Type 8791
Functions
t