Safety switch provides IO-Link connectivity for remote activation08 February 2022

The CTM transponder-coded safety switch from Euchner (UK) features evaluation electronics, a bistable locking function and is capable of the control of guard locking via IO-Link communication, future-proofing the device for Industry 4.0 and meaning no separate wiring is needed for the control of guard locking, because the existing communication connection is used, according to the supplier.

Euchner’s UK&I country manager David Dearden says: “As a safety device, the CTM is smart, compact, safe and features everything you need from a guard locking safety switch. However, the IO-Link version brings further benefits to the CTM range by adding the ability to lock and unlock the device over IO-Link communications, coupled with the comprehensive diagnostic data provided by the IO-Link protocol.”

The evaluation electronics integrated within the CTM is described as allowing simpler wiring and a greater level of detection for connection faults, short-circuits and errors. Additionally, it allows the guard locking safety switch to be wired separately or in series whilst maintaining high levels of performance, up to and including Category 4/PLe according to BS EN ISO 13849-1 and BS EN ISO 14119, ensuring the highest safety level category despite the CTM’s compact size.

The bistable locking function can prevent the deactivation of the activated guard locking in case of a power failure, ensuring that guard locking remains in its current state if the power fails or the installation is switched off. It can also prevent personnel from unintentionally locking themselves inside a potentially unsafe area if the safety door is open in the case of power failure or if the machine is switched off. That means that no additional escape release is required.

A hygienic version consistsing exclusively of food-safe materials is available for the packaging and food sectors. Featuring a locking force of 1,000N (and integral adhesive force of 25/50N) and a safety ball actuator, the CTM is ideal for discreet installation on small, lightweight doors and flaps with a pivoting radius from 150mm.

Operations Engineer

Related Companies
Euchner (UK) Ltd

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