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Modular safety switching device system with optical link

A technology of safety device and conversion device, applied in transmission system, support structure installation, general control system, etc., can solve the problems of electromagnetic interference effect of open cables, troublesome installation steps, etc.

Active Publication Date: 2012-01-18
ROCKWELL AUTOMATION GERMANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The drawbacks of this solution are first seen in the case where the flat-ribbon cables are accessible from the outside and therefore could be tampered with in an unauthorized manner
Also, open cables are susceptible to EMI
Finally, attaching the connecting cable means a cumbersome extra installation step

Method used

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  • Modular safety switching device system with optical link
  • Modular safety switching device system with optical link
  • Modular safety switching device system with optical link

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Embodiment Construction

[0024] The invention is now described with reference to the drawings, wherein like reference numerals are used to indicate like elements throughout. In the following description, for purposes of explanation, numerous specific details are given in order to provide a thorough understanding. It is evident, however, that the invention may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate descriptions thereof.

[0025] As used in this application, the terms "component," "system," "device," "interface," and / or "network," etc., are intended to denote a computer-related entity that is hardware, a combination of hardware and software, software or software in execution. For example, a component may be, but is not limited to being, a process running on a processor or a processor, a hard drive, various storage drives (of optical and / or magnetic storage media), an object, an executable...

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PUM

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Abstract

The present invention relates to a modular safety switching device system with an optical link for actuating actuators in a fail-safe manner. In particular, the present invention relates to a switching device system wherein a plurality of switching devices are connected in series and are communicated with each other for indicating the status of the safety switching devices of said system. According to the present invention, the system comprises at least one first safety device (102); at least one second safety device (104); wherein said first and second safety devices are connected to each other via the optical link (106, 108, 112). This optical link may be formed in way that the at least one first safety device (102) comprises an optical transmitter (106) arranged in a first opening of a housing, and the at least one second safety device (104) comprises an optical receiver (112) arranged in a second opening of the housing.

Description

technical field [0001] The present invention relates generally to a modular safety shifter system for actuating a transmission in a fail-safe manner. In particular, the present invention relates to a switching device system in which a plurality of switching devices are connected in series and communicate with each other to indicate the status of the safety switching devices of the system. Background technique [0002] Generally, a safety relay is a device intended to guarantee the safety of persons working in an industrial process environment. Safety relays are used, for example, to detect the opening of an emergency stop switch or other machine locking switch, such as an interlock switch for a guard door, or a limit switch, for example in the form of an optical curtain wall The form detects the presence of a person in a predefined danger zone. Safety relays and safety devices such as the switches described above must be designed to meet stringent requirements defined in s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/048H04B10/12
CPCH05K7/1471G05B2219/15133H05K7/1484G05B2219/21015G05B2219/25458H05K7/1472G05B19/0421
Inventor 迪尔克·洛伦茨诺贝特·马初莱茨托马斯·黑尔彭施泰因鲁道夫·帕彭布雷尔
Owner ROCKWELL AUTOMATION GERMANY