Pilz PNOZms2p HTL Manual de usuario descargar pdf (Pagina 16)

4.2 Input device types

4 Function description

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]

4-2

4.2Input device types4200Input device types4-

4.2.1 Proximity switch

Proximity s witch4-

4.2.1.1 Requirements of the proximity switches

Requiremen ts of the proxim ity switches4-Drehzahlwaechter_Naeherungsschalter_Anford

 Only "pnp" type proximity switches may be used (N/O contact,

switching to positive).

 The proximity switches require a 24 VDC supply.

 The proximity switches must be fitted so that at least one is always

activated (carries a high signal).

 The proximity switches must be fitted so that the recorded signals

overlap.

Fig. 4-1: Example proximity switch signal behaviour

 Please note the values stated in the technical details

CAUTION!

Appropriate installation measures should be taken to prevent a

foreign body coming between the signal input device and the

proximity switch. The foreign body could cause one of the prox-

imity switches to be constantly energised (constant high signal).

Proximity switch 1

Proximity switch 2

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Pilz PNOZms2p HTL Manual de usuario Pagina 16