Operating Instructions
Non-Contact Safety Switch CES-AP-C01-…
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(translation of the original operating instructions) 112663-05-03/15
9. Electrical connection
WARNING
In case of an error, loss of the safety function through incorrect connection.
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To ensure safety, both safety outputs must always be evaluated.
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Monitoring outputs must not be used as safety outputs.
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Lay the connection cables with protection to prevent the risk of short circuits.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
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The device generates its own clock signal on the output lines OA/OB. A downstream control sys-
tem must tolerate these pulses, which may have a length of up to 0.4 ms.
No clock pulses are output when the safety outputs are switched off.
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The inputs on an evaluation unit connected must be positive-switching, as the two outputs on the
safety switch deliver a level of +24 V in the switched-on state.
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All the electrical connections must either be isolated from the mains supply by a safety transform-
er according to IEC 61558-2-6 with limited output voltage in the event of a fault, or by other equiv-
alent isolation measures (PELV).
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All electrical outputs must have an adequate protective circuit for inductive loads. The outputs
must be protected with a free-wheeling diode for this purpose. RC interference suppression units
must not be used.
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Power devices which are a powerful source of interference must be installed in a separate location
away from the input and output circuits for signal processing. The cable routing for safety circuits
should be as far away as possible from the cables of the power circuits.
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In order to avoid EMC interference, the physical environmental and operating conditions at the
installation site of the device must comply with the requirements according to the standard
EN 60204-1:2006, section 4.4.2 (EMC).
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Please pay attention to any interference fields in case of devices such as frequency converters or
induction heating systems. Observe the EMC instructions in the manuals from the respective man-
ufacturer.
Important!
If the device does not appear to function when operating voltage is applied (e.g. green STATE LED
does not flash), the safety switch must be returned unopened to the manufacturer.
