Pilz PSS67 F 16DI SB-T - Manual (Page 14)

Safety
3 - 2 Operating Manual: PSS67 F 16DI SB-T
Categories in accordance with EN 954-1
WARNING!
Please note: To achieve the corresponding category or requirement class,
the whole system including all safety-related components (parts, devices,
user program etc.) must be included in the assessment. For this reason,
Pilz cannot accept liability for the correct classification into a category or
requirement class.
Digital inputs
Depending on the application area and its respective regulations, the
inputs may be used without test pulses for applications up to Category 3,
in accordance with EN 954-1. The possibility of a short circuit occurring in
the external wiring between different inputs or against the supply must be
eliminated through appropriate wiring.
For Category 4 applications, shorts between the input contacts must be
detected. This can be achieved through the use of the module’s test pulses
or, depending on the type of input device, through a feasibility test or
through detection of shorts across the contacts on the input device (e.g.
light grid) (for connection examples please see “Wiring the Inputs and
Outputs”).
System requirements
CPU versions
The PSS67 F 16DI SB-T is supported by the following SafetyBUS p-
compatible programmable safety and control systems:
• PSS SB CPU from Version 1.3
• PSS1 SB CPU from Version 1.3
• PSS SB 3006 IBS-S PCP from Version 1.2
• PSS SB 3056 from Version 1.2
• PSS(1) SB CPU3 from Version 1.4
• all Compact 3rd Generation PSS, e.g. PSS SB 3047-3 ETH-2