PD IEC/TR 61496-4:2007

PD IEC/TR 61496-4:2007

Safety of machinery. Electro-sensitive protective equipment. Particular requirements for equipment using vision based protective devices (VBPD)

Status : Current   Published : November 2007



PD IEC/TR 61496-4 specifies requirements for the design, construction and testing of
electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety-related system, employing vision-based protective devices (VBPDs) 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 Annex A of IEC 61496-1 and this technical report.

PD IEC/TR 61496-4 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.

• It is limited to automatic vision-based ESPEs that do not require human intervention for detection
• It is limited to automatic vision-based ESPEs that detect objects entering into, or present in, a detection zone(s)
• Excluded from this part are VBPD employing radiation at wavelengths outside the range 400 nm to 1 500 nm
• This technical report does not address those aspects required for complex classification or differentiation of the object detected

PD IEC/TR 61496-4 may be relevant to applications other than those for the protection of persons, for example the protection of machinery or products from mechanical damage. In those applications, additional requirements may be necessary, for example when the materials that are to be recognized by the sensing function have different properties from those of persons.

PD IEC/TR 61496-4 does not deal with EMC emission requirements.

Standard NumberPD IEC/TR 61496-4:2007
TitleSafety of machinery. Electro-sensitive protective equipment. Particular requirements for equipment using vision based protective devices (VBPD)
Publication Date30 November 2007
Normative References(Required to achieve compliance to this standard)IEC 60825-1:2007, ISO 13855:2002
Informative References(Provided for Information)No other standards are informatively referenced
International RelationshipsIEC TR 61496-4:2007
Draft Superseded By05/30130195 DC
DescriptorsImage processing (computer), Control equipment, Optoelectronic devices, Control devices, Control systems, Equipment safety, Electrical protection equipment, Safety devices, Probes, Electrical equipment, Performance testing, Human body, Safety measures, Occupational safety
Title in FrenchSécurité des machines. Equipements de protection électro-sensibles. Exigences particulières pour les équipements utilisant des dispositifs protecteurs par vision (VBPD)
Title in GermanSicherheit von Maschinen. Berührungslos wirkende Schutzeinrichtungen. Besondere Anforderungen an bildverarbeitende Schutzeinrichtungen (VBPD)
ISBN978 0 580 55143 7
File Size567 KB

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