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News

Non-Contact Safety Switch For Machinery Access Doors

Omron : 01 October, 2010  (New Product)
The D40Z offers high levels of safety for machine operators featuring serial interface, ease of installation and fail-safe architecture
Non-Contact Safety Switch For Machinery Access Doors
Omron has released the D40Z, a non-contact safety door switch that meets the very highest level of safety stipulated in safety standard ISO13849-1.

Non-contact safety door switches are an important tool used to ensure the safety of operators of hazardous machinery. They are used widely in a variety of applications due to their ease of installation and their resistance to particles present in working environments. A recent modification to the machinery safety standard ISO13849-1 saw the introduction of a new scale for determining safety levels called PL (Performance Level), and Omron's new non-contact safety door switch, the D40Z, complies with the highest safety level on this scale (called PLe). At the same time, the switch is exceedingly easy to install and allows serial connection even with large-sized machinery. Furthermore, features of D40Z such as a multi-colored indicator and auxiliary output are provided to help enhance the productivity of safety systems.

Two-way communication between switch and actuator via electromagnetic induction, and redundant structure in the control circuit allows the D40Z to comply with Category 4/PLe.

Up to 30 D40Z switches can be connected in series to a Safety Controller G9SP or G9SX-NS and still maintain a Category 4/PLe level of safety, and can thus be used with large-sized machinery with multiple doors or gates.

A multi-colored LED indicator on the switch locally indicates abnormalities in the condition of safety systems, providing crucial information to the operator who can then respond appropriately to any problems.

The auxiliary output on the D40Z switch can be connected to any PLC or machinery control system- either to a PNP or NPN interface, enabling operators to monitor safety using machinery control systems.
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