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Examples – Pilz PSS SB HYD, Basic license User Manual

Page 264

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Examples

Modular Block System: Hydraulic Presses

Safety gate monitoring with automatic start and manual restart,
category 4

Block used: SB066/ST_K4

Cyclical function test on the gate:
The following application does not require a cyclical function test on the
gate.
However, should you wish to use this function you should assign the
“Machine running” signal to the input parameter

MEin.

Set operating mode:
The following operating mode is set for this application:

ARSt = 0: Reset lock activated (manual restart)

The operator must reset each time the safety gate opens
(input parameter

Strt).

NFkT = 1

No function test on safety gate when PSS starts up/resets

AuSt = 1

Automatic start

WARNING!

When a safety-related device provides a start or restart signal, the start or
restart shall take place automatically only if a hazardous situation cannot
exist (EN 954, 03/97).