ISO 10218-2, Robotics - Safety requirements – Part 2: Industrial robot systems, robot applications and robot cells (revision of ISO 10218-2:2011)

 Since 2011, industrial robot systems, robot applications and robot cells have undergone many enhancements and improvements due to market demand and a broadening of uses.  In particular, there are increasingly many more safety functions than even mentioned in the 2011 edition.  These enhancements and improvements provide improved ease of use – particularly for small and medium enterprises that might have no previous robotic experience.  Another aspect of the enhancements are capabilities for enabling collaborative robot applications which has greater content than in the 2011 edition..

This standard provides requirements for industrial robot systems, robot applications and robot cells.  This document is used by integrators and suppliers of industrial robot systems, robot applications and robot cells – although it could be of interest to others. The revision of ISO 10218-2:2011 started in 2017 with the new edition expected to be completed at the end of 2022.

Changes between the 2011 edition and the ongoing revision (as of the FDIS) are:

  • Retain harmonization status with participating member countries, including the Machinery Directive in Europe.
  • Move contents between the Part 1 and the Part 2 to make sure content is in the correct Part of the standard.
  • Updated definitions, most notably “safeguarded space” and “industrial environment”.
  • Added requirements about
    •  risk assessment to include the characteristics of collaborative and non-collaborative robot application,
    • mechanical strength,
    • stability,
    • materials,
    • packaging, lifting, transport and handling,
    • hazardous substances,
    • temperatures and risks of fires,
    • special equipment,
    • position holding, 
    • braking systems,
    • additional axes,
    • power loss or change,
    • cybersecurity,
    • robot cell integration,
    • speed limit monitoring,
    • start interlock, restart interlock and reset,
    • monitored standstill,
    • communications,
    • normal stop,
    • operational modes,
    • unexpected start,
    • status indication and warning devices,
    • single point of control,
    • local and remote control,
    • unexpected start,
    • portable control stations capable of initiating motion or other hazardous situations,
    • end-effectors (from ISO/TR 20218-1),
    • vertical transfer components
    • lasers and laser equipment
    • materials handling,
    • manual load/unload stations (from ISO/TR 20218-2),
    • material flow,
    • adjacent robot cells,
    • assembly, installation and commissioning,
    • information for use.
  • Incorporate the contents contained in the following documents:
    • ISO/TS 15066:2016 Robots and robotic devices — Collaborative robots (no technical changes)
      • ISO/TS 15066 will remain as a separate document.
    • ISO/TR 20218-1 and ISO TR 20218-2.
      • Possibly retain these technical reports as separate documents.
  • Collaborative:
    • Removed the following terms:
      • “collaborative robot”,
      • “collaborative operation”,
      • “safety-rated monitored stop” (this concept is now a safety function called “monitored standstill” which happens after a Stop Category 2 (IEC 60204-1 happens).
    • Collaborative describes a robot application, collaborative is not a mode.
    • Collaborative applications have more detailed requirements.
    • Degree of collaboration or cooperation is not relevant.
  • Functional safety changes include
    • PLd Category 3 or SIL2 HFT=1 or PFHD less than 4.43 x 10-7.
    • Requiring compliance with Annex C for safety functions.
      • Approximately 36 safety functions are listed.
      • Not all safety functions are required to meet PLd or SIL2 requirements
      • Not all safety functions are mandatory.
    • Clarity about safety functions and the safety functions characteristics
    • Information for use requires providing extensive functional safety information.
  • Informative annexes have be expanded.

 

 

 

(Pictures by permission from ABB, Universal Robots)