Fail-safe sensor

The GG851S fail-safe inductive
sensor from ifm electronic simplifies
safety-related applications simply by
operating normally closed. The safestate,
with the outputs high, is given
when the target is not present, i.e.

outside the 10mm enable zone, in
the area known as the safe switch-off
zone. If a metal object is in the
enable zone, the outputs are switched
on. It also has a wider operating
voltage than earlier versions,
allowing operation down to 12V DC.

The GG851S sensor has two
OSSD outputs for connection to a
safety relay or PLC. The diagnosis of
the different operating states is made
via LEDs. No special target is
required and the GG851S is fully
flush mountable. The fail-safe sensor
is certified to ISO 13849-1 PL d, IEC
61508 SIL 2 and IEC 62061 SIL cl2.