Functions And Features; Function; 5�1 Enable Zone - Reer PI M18 F R Notice D'utilisation Originale

4 Functions and features

The fail-safe inductive sensor PI M18 F R detects metal without contact�
Safety function SF: the safe state (output stage switched off; logic "0") is achieved
when damping smaller than the safe switch-off distance (→ 9 Technical data).
Also observe the notes on installation of the sensor (→ 6 Installation).
The fail-safe inductive sensor is a proximity device with defined behaviour under
fault conditions (PDDB) to IEC 60947-5-3�
The fail-safe sensor conforms to Performance Level d according to
EN ISO 13849-1 as well as to the requirements SIL 2 to IEC 61508 and meets
SILCL 2 to IEC 62061�
The unit corresponds to the classification I1A18SP2 to IEC 60947-5-2 for flush
installation (→ 6 Installation).
The fail-safe inductive sensor has been certified by TÜVNord�

5 Function

1: dual LED: signal (yellow); power (green)
2: safe switch-off distance
3: inadmissible zone
4: enable zone
5: target
5.1 Enable zone
The outputs (OSSDs) are only enabled when undamping in the enable zone
> 10 mm� The change of switching states of the OSSDs is carried out in the inad-
missible zone (3)� Below the safe switch-off distance the sensor is damped and
the outputs (OSSDs) are switched off�
6
"0" "1"