Lenze EVS9332xK - Manual (Page 286)

Function library
Function blocks
3.2.81 Delay element (PT1−2)
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EDSVS9332K−EXT EN 4.0
3.2.81 Delay element (PT1−2)
Purpose
The function block filters and smoothes speed signals. This serves to e.g. filter the digital frequency.
PT1-2-DFIN
PT1-2-DFOUT
PT1-2-LIM
PT1-2-MEM
PT1-2-DIFF
PT1-2-DISABLEFILTER
PT1-2-RESET
C0644/1
C0647/1
C0647/2
C0645/1
C0648/1
C0648/2
C0646/1
C0646/2
C0643 PT1-2
fb_pt1−2
Fig. 3−209 Delay element (PT1−2)
Signal Source Note
Name Type DIS DIS format CFG List Lenze
PT1−2−DFIN phd C0645/1 dec [rpm] C0644/1 4 1000 −
PT1−2−DISABLEFILTER d C0648/1 bin C0647/1 2 1000 LOW = filter is on
HIGH = filter is off
PT1−2−RESET d C0648/2 bin C0647/2 2 1000 HIGH = overflow buffer is cleared. PT1−2−DFOUT is
immediately set to 0. The position gets lost.
(Function is available as of software version 3.4)
PT1−2−DFOUT phd − − − − − Signal is limited to ±29999 rpm
PT1−2−DIFF ph − − − − − Outputs the phase displacement between input and
output signal.
PT1−2−LIM d − − − − − HIGH = signal at PT1−2−DFOUT is limited
(Function is available as of software version 3.4)
PT1−2−MEM d − − − − − HIGH = overflow buffer still contains values.
A query is sensible if
PT1−2−DISABLEFILTER = HIGH.
(Function is available as of software version 3.4)
Function
Jumps and variations of the input signal are smoothed via the PT1 behaviour without pulse/position
losses. An overflow buffer ensures that all increments of the input signal are output again at the
output.
)
Note!
The overflow buffer behaves according to the cycle of numbers (32 bits).