| Specifications | Terminology in Machinery Safety Reference Manual, April 2007 E86060-T1813-A101-A1-7600,04/2007 RENAMEDBYADMWHILEHIDDENTOALLOWDUPLICATEACCELERATORS |
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| Specifications | Terminology in Machinery Safety Reference Manual, April 2007 E86060-T1813-A101-A1-7600,04/2007 RENAMEDBYADMWHILEHIDDENTOALLOWDUPLICATEACCELERATORS |
| Business section |
| Specifications | Terminology in Machinery Safety Reference Manual, April 2007 E86060-T1813-A101-A1-7600,04/2007 RENAMEDBYADMWHILEHIDDENTOALLOWDUPLICATEACCELERATORS |
| Outline | Saftey Integrated - Terms and Standards, Terminology in Machinery Safety Table of contents Introduction Important notes General information regarding the Standards An explanation of how to use this brochure |
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| Content | Term Terminology in Machinery Safety 32 Reference Manual, 04/2007, E86060-T1813-A101-A1-7600 Term Reference Relevant Standard Safety-related component Machinery Directive MD Attachment IV These are listed in Attachment IV of the Machinery Directive, e.g.: • Sensor-controlled protective devices for personnel (light curtains, pressure-sensitive mats, electro- magnetic detectors) • Automatically moving protective devices and equipment at machines according to the letter A, numbers 9, 10 and 11 • Two-hand control devices • Rollover protection structure • Protection against falling objects Note: In the Machinery Directive Article 1, Paragraph (2) safety components means a component, provided that it is not interchangeable equipment, which the manufacturer or his authorized representative established in the Community places on the market to fulfill a safety function when in use and the failure or malfunctioning of which endangers the safety or health of exposed persons. Safety-related routing Protective separation (of circuits) EN 61140 (IEC 61140) (protection against electric shock) Cables with basic isolation may not be routed along sharp edges or should be routed in steel pipes and ducts (protection Class 2): Is used to exclude faults (highest insulation). Safety relay Evaluation unit, SRECS, SRP/CS This is another term for a safety combination or evaluation unit. A safety-related evaluation unit generates, dependent on the state of the connected signal transmitter, a safety-related output signal either according to a fixed assignment or according to instructions that have been programmed/parameterized. Self-monitoring Diagnostic test interval, T2 EN 62061 The correct functioning of a component is automatically and cyclically monitored using a test routine. Sensitive protection equipment (SPE) ISO 12100-1 (EN 292-1) Sensitive protection equipment: Equipment operating on a mechanical principle (neither contactless nor electro-sensitive). Separate actuator Position switch, tumbler mechanism Coded, mechanical actuating element that opens positively-opening contacts when it is withdrawn from the position switch (head). Series circuit Categories EN 954-1 (EN ISO 13849-1:2006) Sensors, e.g. EMERGENCY STOP command devices are connected in series and evaluated using a safety relay (refer to the achievable Category, Page 1 to 6). SFF DC, PFHD EN 62061 Component of safe failures Component of the total failure rate of a subsystem that does not result in a dangerous failure Note: The component of safe failures (SFF) can be calculated using the following equation: (ΣλS + ΣλDD)/(ΣλS + ΣλD), whereby λS is the rate of non-dangerous failures, λDD the rate of dangerous failures that are detected by the diagnostic functions and λD the rate of dangerous failures. Short-circuit Cross-circuit, testing A conductive connection - without almost any resistance - between two electrical conductors at a specific voltage. © Siemens AG 2007 |
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