ansi/ria r15.06-2012 industrial robots and robot systems safety requirements mike marr safety...
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ANSI/RIA R15.06-2012Industrial Robots and Robot Systems
Safety Requirements
Mike MarrSafety Consultant Specialist
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Standard History
• ANSI/RIA R15.06-2012Industrial Robots and Robot Systems-Safety Requirements
• RIA TR R15.106-2006Industrial Robots and Robot Systems-Safety Requirements –Teaching Multiple Robots
• ANSI/RIA/ISO 10218- Part 1 & 2-2011Robots for Industrial Environment-Safety Requirements
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What’s To Come
• Harmonized Vocabulary- Canada, Europe, Japan (World Wide)
• 10218 Part 2 – Came out in 2011Deals with the user
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OSHA’s Stand on ANSI/RIA R15.06-2012
• OSHA only sites under the General Duty 5(a)1 or the General Machine Guarding 1910.212
– But OSHA recognizes R15.06 in OSHA Technical Manual Section IV – Chapter 4, The R15.06-1992
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To Comply With the Standard• New Robots built after 2012 must be built to the
standard• Rebuilt robots – original configuration– Compliance with standard in effect on date
manufactured • Remanufactured – new configuration– Compliance with 2012 Standard
• Moving existing cell– Cell must comply with 2012 standard– Robot deficiencies require compensation
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What is a Robot?Definitions
• Industrial robot– Automatically controlled– Reprogrammable multipurpose manipulator– Programmable in three or more axis– Which may be either fixed in place or mobile– For use in industrial automation applications
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Definition – IndustrialRobot System
• Equipment that includes the robot(s) (hardware and software) consisting of the manipulator power supply and control system; the end-effector(s); and any other associated machinery and equipment within the safeguarded space.
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Definitions - Space
• The three dimensional volume encompassing the movement of all robot parts through their axis.
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Definition – Maximum Space
• The volume of space encompassing the maximum designed movements of all robot parts including the end-effector, work piece and attachments.
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Definitions – Restricted Space
• That portion of the maximum space to which a robot is restricted by limiting devices. The maximum distance that the robot, end-effector, and work piece can travel after limiting device actuation defines the boundary of the robot’s restricted space.
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Definitions – Operating Space
• That portion of the restricted space that is actually used by the robot while performing its task program.
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Definitions – Safeguarded Space
• The space defined by the perimeter safe guarding devices.
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Safeguarded
Restricted
Space
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Operating Space
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Safeguarding Personnel from Hazards
• Moving Components• Trapping or crushing• Power sources• Stored Energy• Hazardous Materials• Loose objects• Vibration, shock
• Ergonomics• Slips, trips and falls• Moving, handling• Protective failures• Noise• Inadvertent operation• Human errors
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Purpose of Safeguarding Devices
• Prevent access to the hazard• Cause the hazard to cease before access• Prevent unintended operation• Contain parts and tooling– Loose objects, flying projectiles
• Control other process hazards– Noise, laser, radiation
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Safeguarding Methodology
• Either follow the prescribed safeguarding requirements in chapter (8) OR do a comprehensive risk assessment per chapter (9)
• Detailed user requirements in chapter (10) of safeguarding device installation and use regardless if you use chapter (8) or (9)
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Prescribed Method
• Passive safeguarding against hazards• Establish restricted space • Protection outside the safeguarded space• Protection inside the safeguarded space• Safeguard against point of operation hazards• Clearance protection• Control reliable circuitry required
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Establish Restricted Space
• That portion of the maximum space to which a robot is restricted by limiting devices
• The maximum distance that the robot, end-effector, and the work piece can travel after a limiting device actuates defines the boundary of the robot’s restricted space
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Limiting Devices
• A device that restricts the maximum space by stopping or causing to stop all robot motion and is independent of the control program and the task programs
• Integral to robot or external mounting• Mechanical or non-mechanical• Stop robot at full rated load and speed
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Barrier Guards
• Prevent access to a hazard• Constructed to withstand operational and
environmental forces• Free of sharp edges and projections• Not create a hazard in themselves• Comply with opening size and distance from
the hazard
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Barrier Guards Fixed
• Bottom no more than 6 inches from floor.• Top no lower than 1.5m above adjacent
walking surface • Require the use of tools to remove any fixed
portion• May not be positioned any closer than the
restricted space
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Barrier Guards Interlocked
• Open away from the hazard and not into the safeguard space
• Cannot close by itself and activate the interlocking circuitry
• Can not be easily defeated• Must be able to open from the inside of the
safe guarded space
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Robot Teach & Verification
• Teach and verification distinctly separate actions
• Teach– Program or teach the robot
• Verification– Confirm the program taught
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Robot Teach
• Specific safeguard guidelines to protect the teacher
• Reduce speed control at all times• Single point of control• Additional persons allowed• Clearance from operating space
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Program Verification
• High Speed Attended Program Verification (APV) allowed with specific enhanced safeguarding requirements
• Robot speeds selectable and controlled• Single point of control• One operator• Clearance from restricted space
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Clearance Requirements
• Teach (Manual reduced speed):– 18 inches minimum from operating space
• High Speed APV capability readily available:– 18 inches minimum from restricted space
• Prescribed safeguarding methodology used:– 18 inches minimum from restricted space
• If clearance is not provided– Additional safeguarding is required
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Questions?
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