Lenze Global Drive PLC Developer Studio Manual de usuario descargar pdf (Pagina 72)

7.3 DFIN_IO_DigitalFrequency (node number 21)

Drive PLC

System blocks − Extension Board 3

7−4

DrivePLC DE 6.0

7.3 DFIN_IO_DigitalFrequency (node number 21)

7.3.1 Inputs_DFIN (encoder input of extension board 3)

This SB can convert and normalise a pulse current at the encoder input X3 of the extension board

3 into a speed value.

 The transmission is very precise without offset and gain errors.

 In addition, this SB provides the angle correction value DFIN_dnIncLastScan_p which is

required within the calling task for the angle processing in touch probe processes.

(^ 7−8)

DFIN_IO_DigitalFrequency

C0426

C0425

TP/MP

-Ctrl

C0428 C0429

DFIN_nIn_v

DFIN_bTPReceived_b

DFIN_dnIncLastScan_p

C0431

Fig. 7−3 DFIN_IO_DigitalFrequency

System variables

Variable Data type Signal type Address Display

Code

Display

Format

Notes

DFIN_nIn_v Integer velocity %IW21.0 C0426 dec [rpm]

DFIN_bTPReceived_b Bool binary %IX21.4.0 − −

DFIN_dnIncLastScan_p Double integer position %ID21.1 − −

Tip!

The process image is newly created for every task the SB is used in.

 If DFIN_nIn_v, DFIN_dnIncLastScan_p and DFIN_bTPReceived_b are used in several tasks,

every task gets its own SB process image.

 This process is different from the previous process image principle!

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Lenze Global Drive PLC Developer Studio Manual de usuario Pagina 72