Pilz PDP67 F 8DI ION HP - Manual (Page 26)

7.3 Wiring examples
7 Wiring
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7-6
7.3.2 Example: Dual-channel input devices, without test pulses
Example: Dual-channel input devices, without test pulses 7- Bsp 2: zweikan Sensor ungetaktet
Features:
 This type of connection is mainly used for signal inputs with frequent
operation.
 Depending on the application area and its respective regulations, this
connection diagram is suitable for input devices with frequent ope-
ration and diverse channels in accordance with EN ISO 13849-1 up
to PL e and EN IEC 62061 up to SIL CL 3, provided the functionality
of both input device channels is monitored in the user program via a
feasibility check.
 The input device must be approved for failsafe applications.
 If you are using input devices with different (diverse) channels, adja-
cent inputs may be used. The user program will detect short circuits
via the feasibility check.
Bsp: WARNUNG Kurzschluss Bsp. 2
Bsp 2: zweikan Sensor ungetaktet_Zeichnung HP
WARNING!
On input devices with identical channels, short circuits between
the cable to the input device and the 24 V line or between cables
to both input devices will not be detected. Depending on the
application, serious injury or death may result.
Avoid short circuits by
 Appropriate wiring
 Wiring in accordance with the requirements of IEC 61076-2-
101 and IEC 60204-1, clause 14.1.1 and 14.1.2