Product category:
Safety relays, interlocks, control systems, electrical components
News Release from: Schmersal UK | Subject: BZ16 non-contacting safety switches
Edited by the Manufacturingtalk Editorial
Team on 11 October 2002
Safety switches use non-contacting
functionality
A new generation of non-contacting safety switches are said to be the first application of non-contacting functionality in safety switch design.
Schmersal (UK), specialist in man-machine safety systems, has launched the BZ16, a new generation of non-contacting safety switches said to be the first application of non-contacting functionality in safety switch design Whilst conventional safety switches are operated by a separate key-shaped actuator being inserted into an actuator opening, the actuating components of the BZ16 have even and closed surfaces
This article was originally published on Manufacturingtalk on 19 Apr 2002 at 8.00am (UK)
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The new switch uses two signals - an inductive signal that is changed and transmitted back by the actuator, and a magnetic signal.
Both are received and controlled by a switching element that will only open or close the contacts of the switch if the electronic control signals are verified.
The combination of two different operating principles in a single switch guarantees high levels of safety whilst providing engineers with a number of design and operational advantages.
The even contact surfaces of the switch and actuator mean that once fitted, adjustment of the switch is unnecessary.
They also eliminate misalignment between the safety guard and doorframe, which can be a problem with conventional switches where a mechanical actuator must be inserted exactly into the switch.
The unit can be fully embedded to simplify integration into the machine and guarantee accessibility.
The non-contacting design also makes the BZ16 switch ideal for applications where hygiene is important, or where dust and dirt could enter a conventional actuator opening.
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