Pilz PSS SB HYD, Basic license - Manual (Page 237)

8-1 Modular Block System: Hydraulic Presses
Applications and parameters of individual blocks
The following examples are designed to show the application and
parameters of individual standard function blocks.
The voltage supply to the PSS and the reset input E 0.31 are not shown in
the wiring diagrams for the sake of clarity.
Many of the following diagrams state the category for which the circuitry is
designed, in accordance with EN 954-1, 03/97. For details of how this
relates to the corresponding AK requirement class (DIN V 19 250, 05/94),
please refer to the table in the Appendix.
NOTICE
It is important to note that the categories stated refer exclusively to the
PSS circuitry and the parameters set on the SBs.
To achieve the corresponding category throughout the whole system, all
safety-related components/devices (e.g. E-STOP button, safety limit
switch etc.), plus the whole of the application program must be considered
in the assessment (approved SBs do not need to be tested).
Pilz cannot accept responsibility for classifying installations into particular
categories.
Examples