Applications Of The Safety Switches - SICK IN4000 Standard Manual Del Operador

Operating Instructions
IN4000 Standard
© SICK AG • Industrial Safety Systems • Germany • Subject to change without notice 8010934/WQ88/2013-01-15
On safety
2.2

Applications of the safety switches

The IN4000 Standard series safety switches are
inductive safety proximity switches that are actuated
by metal. The safe state is the isolated state.
Using the IN4000 Standard series safety switches and
the related machine or plant controller, e.g., movable
physical guards can be protected such that
the dangerous state of the machine or system can
only be switched on when the guards are closed.
a stop command is triggered if a guard 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 assess-
ment must be performed on the machine as per:
EN ISO 13849-1, Safety of machinery, Safety-
related parts of control systems,
EN 62061, Safety of machinery. Functional safety
of safety-related electrical, electronic and
programmable electronic control systems,
EN ISO 14121-1, Safety of machinery, principles of
risk assessment
EN 12100, Safety of machinery, basic concepts
Correct use includes observance of the applicable
requirements on installation and operation, in
particular
EN 1088, Safety of Machinery. Interlocking devices
associated with guards. Principle for design and
selection
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