Pilz PNOZ ms4p speedcontrol User Manual download pdf (Page 30)

9.2 Example with position control

9 Application examples

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9-2

9.2Example with position cont rol 9200Example with position cont rol 9-

Evaluation of bit: "Unfeasible or single-channel signal from the

incremental encoder", with position control

Diagnostic bit 10: "Unfeasible or single-channel signal from the incre-

mental encoder" may be set during position control as a result of jitter

on the encoder.

The set bit can be tolerated, i.e. evaluated in the user program in such a

way that a shutdown will not occur if the following conditions are met:

` An additional position control signal must be provided from an exter-

nal control system (e.g. PLC) and

` The signal must have the following status conditions:

– Position control: Signal status = 1

– Operation: Signal status = 0

During operation, diagnostic bit 10 must be evaluated in the user pro-

gram in such a way that a set bit leads to a safety-related error reaction

(shutdown).

Application example:

PNOZmulti Base Unit

PNOZ

ms3p

ms4p

PLC

Drive Control

Enable

Position Control

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Pilz PNOZ ms4p speedcontrol User Manual Page 30