Power And Control Functional Safety

Date: 1/20/2014

Functional Safety of Control Systems

HMI Hardware, Software, Environmental Factors, and Safety Lifecycle Management Processes

Functional Safety Standards

IEC 61508 Functional Safety Of Electrical, Electronic, Programmable Electronic SafetyAs systems rely more and more on sophisticated hardware and software, safety is increasingly dependent on the relationship between products and their responses to inputs. Functional safety depends on equipment or a system operating correctly in response to its inputs. Neither overall product safety nor functional safety can be determined without carefully evaluating a product's systems as a whole and assessing the environment with which they interact.

Increasingly, certification to IEC 61508, IEC 61511 and other related standards such as IEC 62061 or ISO 13849 is being encouraged by regulatory authorities and specified by end-users as a way of to help minimize risk and demonstrate best practices.

A Functional Safety Includes:

  • Hardware
  • Software
  • Environmental Factors
  • Safety Lifecycle Management Processes

The Parts of IEC 61508:

  • Functional Safety Standards For Road Vehicle, Railway Applications, Tractors And Machinery, Earth-Moving MachineryIEC 61508-1: Functional safety of electrical/electronic/programmable electronic safety-related systems - General requirements
  • IEC 61508-2: Functional safety of electrical/electronic/programmable electronic safety-related systems - Requirements for electrical/electronic/programmable electronic safety-related systems
  • IEC 61508-3: Functional safety of electrical/electronic/programmable electronic safety-related systems - Software requirements
  • IEC 61508-4: Functional safety of electrical/electronic/programmable electronic safety-related systems - Definitions and abbreviations
  • IEC 61508-5: Functional safety of electrical/electronic/programmable electronic safety related systems - Examples of methods for the determination of safety integrity levels
  • IEC 61508-6: Functional safety of electrical/electronic/programmable electronic safety-related systems - Guidelines on the application of IEC 61508-2 and IEC 61508-3
  • IEC 61508-7: Functional safety of electrical/electronic/programmable electronic safety-related systems - Overview of techniques and measures

Product Development, Launch, Lifecycle Management, and Minimize Risks:

  • Hardware and Software Validation Plans
  • Safety Requirements Specification (SRS)
  • Failure Modes and Effects Analysis (FMEA)
  • Failure Modes, Effects, and Diagnostic Analysis (FMEDA)
  • Software Development for FMEA and HAZOP Analysis
  • Integrated Test Plans
  • Safety Enclosures
  • Safety Integrity Level (SIL), Performance Level (PL), and Class Calculation, Verification, etc.

CONTINUATION:

HMI Safety Products Meet Standards and Performance

Intelligent Embedded Video and Vision Systems Engineering and ServicesAIS promotes standardization of material, facilities, and engineering practices for the purpose of improving Marine, Military, Oil and Gas, Railway, Machinery, Heavy-Duty and Specialty Vehicles safety standards, regulations, operational readiness, reduce total cost of ownership and acquisition cycle time. Industry standards state requirements in performance terms in order to make maximum use of technologies, products, and practices. AIS engineers manage design tools and methods; deliver intelligence, techniques and data; to drive innovation, collaboration and efficiency in product design. Learn More >

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