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PD IEC/TS 61496-4-3:2015

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Safety of machinery. Electro-sensitive protective equipment Particular requirements for equipment using vision based protective devices (VBPD). Additional requirements when using stereo vision techniques (VBPDST)
Available format(s)

Hardcopy , PDF

Superseded date

04-28-2023

Language(s)

English

Published date

05-31-2015

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Functional, design and environmental
  requirements
5 Testing
6 Marking for identification and for safe use
7 Accompanying documents
Annex A (normative) - Optional functions
         of the ESPE
Annex B (normative) - Catalogue of single
         faults affecting the electrical equipment
         of the ESPE, to be applied as specified in
Annex AA (informative) - The positioning of
         VBPDST employing a volume as a detection
         zone in respect of parts of the human body
Annex BB (informative) - Relationship between
         position accuracy and tolerance zones for
         VBPDST
Annex CC (informative) - Basic principles of physics
         for contrast of convex homogeneous bodies
         Bibliography

Defines requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons or parts of persons as part of a safety-related system, employing vision-based protective devices (VBPDs) using stereo vision techniques (VBPDST) for the sensing function.

Replacement: This part of IEC61496 specifies requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons or parts of persons as part of a safety-related system, employing vision-based protective devices (VBPDs) using stereo vision techniques (VBPDST) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related performance is achieved. An ESPE may include optional safety-related functions, the requirements for which are given in AnnexA of IEC61496‑1:2012 and this Technical Specification. This part of IEC61496 does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. The detection principle is based on the evaluation of images from different viewing points (stereoscopic view) for the determination of distance information. This distance information is used to determine the location of an object(s). This part of IEC61496 is limited to vision based ESPEs with distances (stereo base) and directions between the different imaging devices fixed during manufacture. It is limited to vision based ESPEs, with a minimum distance from the sensing device to the detection zone of 4 times of the stereo base. It is limited to vision based ESPEs that can detect objects with at least 5 pixel diameter in the image plane. It is limited to vision based ESPEs that do not require human intervention for detection. It is limited to vision based ESPEs that detect objects entering into or being present in a detection zone(s). It is limited to VBPDSTs employing radiation at wavelengths within the range 400nm to 1500nm. This part of IEC61496 does not address those aspects required for complex classification or differentiation of the object detected. This part of IEC61496 does not consider the aspects of a moving ESPE installation. Additional requirements and tests can apply in the following cases: Use of multi-spectral (colour) techniques; Setups other than as shown in Figures of 4.1.2 (e.g. changing backgrounds, horizontal orientation of the optical axis with respect to the floor); Intended for outdoor applications. This technical specification is relevant for VBPDSTs having a stated detection capability up to 200mm. This technical specification may be relevant to applications other than those for the protection of persons or parts of persons like arm or fingers (in the range 14mm to 200mm), for example the protection of machinery or products from mechanical damage. In those applications, additional requirements can be necessary, for example when the materials that are to be recognized by the sensing function have different properties from those of persons. This technical specification does not deal with EMC emission requirements.

Committee
MCE/3
DocumentType
Standard
Pages
68
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
IEC TS 61496-4-3:2015 Identical

ISO 13855:2010 Safety of machinery Positioning of safeguards with respect to the approach speeds of parts of the human body
EN 12464-1:2011 Light and lighting - Lighting of work places - Part 1: Indoor work places
IEC 60825-1:2014 Safety of laser products - Part 1: Equipment classification and requirements
ISO 15534-3:2000 Ergonomic design for the safety of machinery — Part 3: Anthropometric data
EN 547-3:1996+A1:2008 Safety of machinery - Human body measurements - Part 3: Anthropometric data
ISO 20471:2013 High visibility clothing — Test methods and requirements
IEC 61496-1:2012 Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests
IEC 62471:2006 Photobiological safety of lamps and lamp systems
ISO 15534-1:2000 Ergonomic design for the safety of machinery — Part 1: Principles for determining the dimensions required for openings for whole-body access into machinery
IEC TS 62046:2008 Safety of machinery - Application of protective equipment to detect the presence of persons
ISO 15534-2:2000 Ergonomic design for the safety of machinery — Part 2: Principles for determining the dimensions required for access openings

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