Pilz PSS SB HYD, Basic license - Manual (Page 272)

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Examples
Modular Block System: Hydraulic Presses
Safety sensors PSEN 2.1p-10 and PSEN 2.1p-11 with block SB066 (ST_K4)
This example explains some of the special features when incorporating
the safety sensor PSEN 2.1p into the application program. In this case the
safety sensor is assigned to the failsafe standard function block SB066.
Please note the following safety guidelines:
CAUTION!
• The safety sensor should only be operated in conjunction with an
approved evaluation device (in this case the PSS with SB066)!
• The safety sensor should always be used dual-channel, irrespective of
the required category!
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, if you need this requirement, the “Machine running” signal
should be assigned to the input parameter
MEin.
Set operating mode:
The following operating mode is set in this application:
ARSt = 0: Reset lock activated (manual restart)
The operator must acknowledge each opening of the safety
gate (input parameter
Strt).
NFkT = 1 No function test of the safety gate on PSS cold start/warm
start
AuSt = 0 Start-up disabler activated (manual reset)
The operator must acknowledge each PSS cold start/warm
start (input parameter
Strt).