EUCHNER – More than safety.
EUCHNER – More than safety.

Safety switch CES-AP

Benefits for you

  • High level of protection against tampering
  • Category 4 / PL e according to EN ISO 13849-1
  • Integrated short circuit monitoring
  • Large actuating range
  • Connection via plug connectors
  • Diagnostics using LED
The CES-AP makes transponder technology available to protect even very small guards and doors. The typical CES features such as large read distance and center offset are naturally also offered by the CES-AP. What is more, mounting on profile rails couldn't be easier.

Design and functionality

  • The safety switch CES-AP… has two safety outputs.
  • These outputs are connected directly to drives, downstream safety relays or safe control systems.
  • The switch monitors itself for short circuits using pulsed signals.
  • External clock signals are therefore not required.
Safety switch CES-AP

Indication for actuator in the limit range

If the safety door with the actuator should settle over time, the actuator can drift out of the read head actuating range. The device recognizes this situation and indicates that the actuator is in the limit range. This allows the safety door to be readjusted in time.

Connection to safe control systems or safety relays

Do not use a control system or safety relay with pulsing for monitoring short circuits or switch off the pulsing function in these devices. The switch generates its own clock signals on the output lines OA/OB. A downstream device must tolerate these test pulses, which may have a length of up to 0.4 ms.
The inputs on the downstream device must be suitable for positive-switching devices (pnp outputs), as the two outputs on the safety switch deliver a level of +24 V in the switched-on state.

OUT output

(depending on version)

The semiconductor output OUT is switched if the guard is closed (actuator in the actuating range). It is not allowed to be used for safety functions.

DIA output

(depending on version)

The semiconductor output DIA is switched in the fault state. It is not allowed to be used for safety functions.

Reset input

(depending on version)

The switch in a fault state can be reset via the RST input. To do this, a voltage of 24 V is applied to the RST input for at least 3 seconds. It is not necessary to disconnect the power supply to reset a fault.

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Do you have technical questions about our products, their possible use or applications? Our experts will be happy to help.

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