5
UK
► Adhere to the principle of normally closed operation for all external safety
circuits connected to the system�
► In case of faults within the fail-safe sensor which result in the defined safe
state: take measures to maintain the safe state when the complete control
system continues to be operated�
► Replace damaged units�
3 Items supplied
1 fail-safe sensor GG712S with 2 mounting nuts M18,
1 operating instructions GG712S, ident no� 704229�
If one of the above-mentioned components is missing or damaged, please contact
one of the ifm branch offices�
4 Functions and features
The fail-safe inductive sensor GG712S detects metal without contact�
Safety function SF: The safe state (output stage switched off; logic "0") is achieved
when undamping greater than or equal to the safe switch-off distance s
ar
(→ 10
Technical data)�
Also observe the notes on installation of the sensor (→ 6 Installation)�
The fail-safe sensor conforms to Performance Level d to EN ISO 13849-1 as well
as the requirements SIL 2 to IEC 61508 and fulfils 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�
