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2.3 Purpose
This non-contact, electronic safety sensor is designed for application in safety circuits and is used for monitoring the
position of movable safety guards. In this application, the safety sensor monitors the position of hinged, sliding or
removable safety guards by means of the coded electronic actuator.
The safety function consists of safely switching off the safety outputs when the safety guard is opened and maintaining
the safe switched off condition of the safety outputs for as long as the safety guard is open.
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The safety switchgears are classified according to ISO 14119 as type 4 interlocking devices. Designs with individual coding are classified as
highly coded.
Safety sensors and actuators with latching (ordering suffix 'R') always must be used in pairs. The latching force (approx.
18 N) exercised by the permanent magnet keeps hatches and small guards closed, also in a de-energised condition.
The system can be used as a door end stop up to 5 kg at 0.25 m/s.
The diagnostic output of the safety sensor alternatively can be used as a conventional output or as a "serial output"
with input and output channel.
Series-wiring
Series-wiring can be set up. In the case of a series connection, the risk time remains unchanged and the reaction time
increases by the sum of the reaction time of the inputs per additional unit specified in the technical data. The quantity
of devices is only limited by the cable drops and the external cable fuse protection, according to the technical data. Up
to 31 device variants with serial diagnostics can be wired in series.
The user must evaluate and design the safety chain in accordance with the relevant standards and the required safety level. If
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multiple safety sensors are involved in the same safety function, the PFH values of the individual components must be added.
The entire concept of the control system, in which the safety component is integrated, must be validated to the relevant
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standards.
2.4 Warning about misuse
In case of improper use or manipulation of the safety switchgear, personal hazards or damages to machinery or plant
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components cannot be excluded. There are no residual risks, provided that the safety instructions as well as the instructions
regarding mounting, commissioning, operation and maintenance are observed.
2.5 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from defective mounting or failure to comply with
the operating instructions manual. The manufacturer shall accept no liability for damages resulting from the use of
unauthorised spare parts or accessories.
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