Applications Of The Safety Switches - SICK IN3000 Direct Instrucciones De Operación

Chapter 2
152
© SICK AG • Industrial Safety Systems • Germany • Subject to change without notice 8014173/XT35/2013-10-28
On safety
2.2

Applications of the safety switches

The IN3000 Direct series safety switches are inductive
safety proximity switches that are actuated electro-
sensitively by metal. The safe state is the electrically
isolated state.
Using the IN3000 Direct series safety switches and
the related machine or plant controller, e.g., movable
guards can be protected such that
 the dangerous state of the machine or system can
only be switched on when the protective devices are
closed,
 a stop command is triggered if a protective device is
opened with the machine running.
For the control this means that
 switch on commands that produce dangerous
states are only allowed to become effective when
the protective devices are in the protective position,
and
 dangerous states must be terminated before the
protective position is left.
Prior to the use of the safety switches, a risk
assessment must be performed on the machine in
accordance with:
 EN 12100, Safety of machinery, basic concepts.
To determine the necessary reliability (Performance
Level PL, SIL) for the safety function the related
standards should be used.
 EN ISO 13849, Safety of machinery, Safety-related
parts of control systems,
 IEC 62061, Safety of machinery, Functional safety
of safety-related electrical, electronic and
programmable electronic control systems.
Operating instructions
IN3000 Direct