Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37 Manual de usuario Pagina 130

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9400 HighLine | Parameter setting & configuration
I/O terminals
Touch probe detection
130 Firmware 1.37 - 09/2006 L
7.7.1 Actual value interpolation (principle)
If a touch probe is detected, the (residual) time to the following task cycle is determined
and a time stamp is created from it. Based on this time stamp the FB
L_SdTouchProbe can
execute a linear interpolation between both actual position points. The result is the exact
actual position at the time of the physical touch probe event.
[7-3] Actual value determination through linear interpolation (principle)
n Actual position point 1
o Actual position point 2
Residual time (dnTouchProbeTimeLag)
Data
processing
Application
Data
processing
Application
Data
processing
Application
Task cycle
Task cycle Task cycle
t
Position
t
0

t
1
p
1
p
2
Touch probe received
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