Lenze EVS9332xK Manual de usuario descargar pdf (Pagina 153)

100

101

Function library

Function blocks

3.2.34 Conversion (CONVPHPHD2)

3−125

EDSVS9332K−EXT EN 4.0

( STOP!

The function block can evaluate signal jumps at the input CONVPHPHD2−IN up to

max. 2147483647 inc (2

−1). At higher signal jumps the sign of the output signal

changes.

A position loss occurs which cannot be compensated anymore. You must carry out

a reset (CONVPHPHD2−RESET = HIGH).

1-1

2 147 483 647 (2 -1)

-2 147 483 648 (-2 )

-2 147 483 647 (-2 +1)

1073741824 (2 /2)

-1073741824 (-2 /2)

Fig. 3−94 32−bit data representation in the cycle of numbers

Example 1 1. The input signal at CONVPHPHD2−IN is 65536 inc.

2. Now it jumps to −65536 inc.

3. The output CONVPHPHD2−OUT outputs, as expected, negative values

Example 2 1. The input signal at CONVPHPHD2−IN is 65536 inc.

2. Now it jumps to −2

−1 inc.

3. The output CONVPHPHD2−OUT, however, outputs positive values

1 2 ... 148 149 150 151 152 153 154 155 156 157 158 ... 385 386

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Lenze EVS9332xK Manual de usuario Pagina 153

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