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Festo — CPX-F8DE-P — 2022-10d
System overview CPX-F8DE-P
Example B
OSSD sensor
Fig. 11: Function mode 5 – 1oo2 (example B)
NOTICE
Malfunction during use of OSSD sensors on the manifold block CPX-M-AB-4-M12X2-5POL-T.
The connection of an FE contact to pin 5 on an M12 socket causes a short circuit. This causes
malfunctioning signals T1, T3, T5 and T7.
The input module reports module error 2: “short circuit”.
• Connect the FE contact of a sensor only to the M12 plug screw connection of the module.
Functional safety
–
up to PL d, Cat. 2/SIL 2
with certified switch/sensor of an appropriate safety classification
and with automatic testing of the safety function by the machine within 24 hours
–
up to PL d, Cat. 2/SIL 3
with certified switch/sensor of an appropriate safety classification
and with wiring protection of the customer application according to EN 13849-2, Table D.4,
and with automatic testing of the safety function by the machine within 24 hours
–
up to PL e, Cat. 4/SIL 3
with certified sensor (OSSD) of an appropriate safety classification
and with wiring monitoring by the connected sensor (example B).
2.3.3.7
Function mode 6 – 1oo2 T (equivalent, with clock signal monitoring)
Signal evaluation of a dual-channel switch/sensor (internally equivalent) per channel pair with individ-
ually clocked power supply.
