Pilz PNOZ ms2p HTL - Input Device Types

Function description
Operating Manual PNOZ ms2p HTL
1001401-EN-04
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4.4 Input device types
4.4.1 Proximity switch
4.4.1.1 Requirements of the proximity switches
} 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.
} When monitoring with proximity switches we recommend you use proximity switches
with hysteresis in order to prevent bounce and therefore incorrect measurements.
Proximity switch 1
Proximity switch 2
Fig.: Example proximity switch signal behaviour
CAUTION!
Appropriate installation measures should be taken to prevent a foreign body
coming between the signal encoder and the proximity switch. The foreign
body could cause one of the proximity switches to be constantly energised
(constant high signal).
} Please note the values stated in the technical details
4.4.2 Incremental encoders
4.4.2.1 Requirements of the incremental encoders
} Only incremental encoders with a differential output of the following type are permitted
– HTL (12 V – 30 V)
} Please note the values stated in the technical details