Introduction to IEC 61800-5-2, Adjustable Speed Power Drive Systems

Part 5-2: Safety Requirements - Functional

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This workshop is ideal for product design, safety, or management personnel involved in the development of electronic or programmable systems that may have safety implications. It is also applicable to a company’s product engineering processes as they relate to safety requirements and standards.

 Prerequisites for the course:

  • An understanding of the following Functional Safety Concepts (in accordance with IEC 61508)
  • o Functional safety management

    § In particular, the safety development lifecycle (V-model)

    § Specific aspects and activities: safety requirements specification, FMEDA, Markov, software criticality analysis, traceability, verification and validation plans, safety case construction

    o Fail-safe, fail operational

    o Random failures, systematic failures

    o Safety Integrity Level

    § Determination

    § Requirements and verification

    -  Probability of Failure per Hour (PFH), Probability of Failure on Demand (PFD)

    -  Hardware fault tolerance

    -  Diagnostic capabilities

    -  Common cause failures

    -  Systematic safety integrity

    o Environmental impacts (electromagnetic immunity, temperature, humidity, mechanical shock and vibration)

  • General understanding of electrical motor drives
  • o Application, functionality

    o Technology

     

     The learning outcomes for those attending the workshop include:

  • An understanding of why safety functions are integrated in electrical motor drives
  • Knowledge of how to implement safety functions in a motor drive
  • An understanding of functional safety, from both a systems and component perspective
  • An understanding of the need for functional safety management; differences from IEC 61508
  • Clear grasp of typical safety functions (e.g., when a fail-safe state exists for machinery, elevators/lifts, processes)
  • An overview of design requirements: where IEC 61800-5-2 is more explicit or precise than IEC 61508
  • Requirements related to usage instructions; in particular, related to commissioning from “non-safe” platforms

  • Workshops may be attended at UL facilities. However, if your organization plans on sending five or more individuals to a workshop, it may be cost effective to have UL present the course as a private workshop at your facility. For more information, please visit us on the web at http://www.uluniversity.us/catalog/display.resource.aspx?resourceid=300825.

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