Lenze EVS9332xK Bedienungsanleitung PDF herunterladen (Seite 287)

Function library

Function blocks

3.2.81 Delay element (PT1−2)

3−259

EDSVS9332K−EXT EN 4.0

Setting the filter time constant

C0643 serves to set the filter time constant T (delay time). The proportional coefficient is predefined

as K = 1.

Setting information

l The higher the value set, the greater the filter effect.

l The higher the value set, the greater the phase displacement between input and output signal.

K=1

Fig. 3−210 Delay T of the first order delay element

Switching off filter and compensating phase displacement

The filter is switched on and off via the input PT1−2−DISABLEFILTER.

l PT1−2−DISABLEFILTER = LOW

– The filter is switched on.

l PT1−2−DISABLEFILTER = HIGH

– The filter is switched off. All increments in the filter and overflow buffer are still output.

– The input signal is directly output at the output.

) Note!

Always set the input PT1−2−DISABLEFILTER = HIGH

l when the controller is inhibited,

l during acceleration phases.

Compensation of the phase displacement when filter is on

C0646/1 serves to set the compensation of the phase displacement (compensating speed).

l Setting information

– The higher the value set, the greater the dynamics.

– The higher the value set, the worse the filter effect.

– If C0646/1 = 0, the position will be lost.

Compensation of the phase displacement when filter is off

C0646/2 serves to set a compensating speed to compensate the phase displacement between input

and output signal. The output phase displacement at PT1−2−DIFF is compensated "smoothly".

l Setting information

– The smaller the value set, the slower the compensation of the phase displacement.

– If C0646/2 = 0, the position will be lost.

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Lenze EVS9332xK Bedienungsanleitung Seite 287