Global Machine Guarding Standards - Squarespace
Global Machine GuardingStandardsEric Cummings – ROSS CONTROLSGlobal Industry Manager - SafetyEric.cummings@rosscontrols.com803-622-1161
Agenda Ross Controls Introduction Global Machine Safety Standards Trends
The ROSS Controls Story Founded in 1921 by Charlie Ross Design, manufacture and sale or pneumatic valves and systems forindustrial equipment 1954 – First double valve ever developed by ROSS 1962 – Developed first pneumatic energy isolation device 2005 – DM2
Global FacilitiesROSS Controls - Madison HeightsROSS Asia - JapanROSS Controls - Troy, MIROSS UK Ltd.ROSS Europa GmbH - GermanyROSS Controls - Lavonia, GAROSS South AmericaROSS ChinaROSS India
Safety IndustryCurrent Committees with ROSSRepresentationANSI B11.19 Performance Criteria for SafeguardingPublished 2003. Updated 2010ANSI B11.0 General Safety Requirements & Risk AssessmentReleased 2008, updated 2010ANSI Z244 Control of Hazardous Energy - Lockout TagoutPublished 2003, Re-affirmed 2008ANSI TR6 Safety Control Systems for Machine ToolsPublished 2010ANSI B155.1 Packaging and Packaging Related Converting MachineryPublished 2011ANSI B11.151 Plastics MachineryUnder revisionANSI B11.1 Mechanical Power PressPublished 2009ANSI B11.2 Hydraulic and Pneumatic PressesUnder revision, should release in 2012CSA Z432 Guarding of MachineryPublished 2004. Updated 2009CSA Z460 Control of Hazardous Energy - Lockout - TagoutPublished 2005. Updated 2010
New! Machinery Directive 2006/42/EC(December 29, 2009)MIOSHAPart 24Mechanical Power Presses
Global StandardsMachine Guarding TrendsHarmonization of Standards Standards are beginning to speak a similar languageand have a similar structure Being copied with modificationso CSA Energy Isolation ANSI Energy Isolation Robotics ISO 10218 will be the first global standard
Global StandardsMachine Guarding Trends“The New Directive” Does not apply to US Machines but . Global users and OEMs Like to standardize Different machines can affect liability Driving the current global manufacturing market
Global StandardsMachine Guarding TrendsEuropean Certification and DocumentationEQUALS“YOUR PASSPORT TO EUROPE”
Global StandardsMachine Guarding TrendsThe Machinery Directive 98/37/EC was replacedwith 2006/42/EC on December 29, 2009 “The New Directive” Requires CE mark on machinery & safety components Compiling the technical construction file (Mtce. Manual,spare parts, risk assessment etc.) Meet the EHSR’s Includes safety valves with diagnostics
Global StandardsMachine Guarding TrendsThe CE Mark denotes thatthe manufacturer hasdeclared his product incompliance with all thepertinent Directives.
Global StandardsMachine Guarding TrendsInternational Electrotechnical Commission (IEC)International Organization for Standardization (ISO)Member Countries of WTO
Global StandardsMachine Guarding Trends Type A Type B Type C Basic safety standards and terminology B1 – Standards on safety aspects B2 – Standards on safety components Specific machine requirements
Global StandardsMachine Guarding TrendsSTANDARDElectrically Operated ValvesUSACanadaEuropeCSA 22.2 No 139UL 429Control Of Hazardous Energy (Lockout) ANSI Z244CSA Z460ISO 14118Safeguarding of MachineryANSI B11.19CSA Z432ISO 13849Safety Reqs and Risk AssessmentANSI B11.0Power Press Safety RegulationANSI B11.1CSA Z142Cylinder Press RegulationANSI B11.2RobotsPackaging MachineryPlastics MachineryHollow glassANSI 15.06ANSI B155.1ANSI B151.1CSA Z142CSA Z434Safety Control SystemsPneumatic SystemsTwo Hand ControlPneumatic Fluid Power TestingANSI B11.TR6ISO 4414BrazilAustraliaNR 12AS 4024ChinaIndiaGB 17957 JIS B9700ISO 12100EN 692Article 18 IS 11016No 116EN 13736ISO 10218EN 415 1‐9EN 422EN 13042BGISO 4414ISO 13851ISO 19973JapanISO 4414
Global StandardsMachine Guarding TrendsEmergency Stop: ANSI B11.19 ANSI/NFPA 79 ISO 13850
Global StandardsMachine Guarding TrendsRisk Assessment Required: ANSI B11.0 ANSI B155.1 ANSI Z244 ISO 12100 ISO 13849 ISO 10218 RIA 15.06 CSA 432 CSA 434 CSA 460
Global StandardsMachine Guarding TrendsRisk Assessment Requirements:Performed by: OEM Integrator End UserMust consider: Foreseeable misuse Failure Modes
Risk Assessment Risk Assessment Task based process Consider severity, frequency, & probability Consider foreseeable misuse & failure modes
Machine Guarding Hierarchy
Risk Assessment – EN 954S - Severity of InjuryS1Slight (reversible)S2Serious (non-reversible)Take the worst case injury into account. If this is no more than aslight cut or bruise, then select S1. If the consequences are moresevere, up to and including death, then select S2.F - Frequency & Duration of ExposureF1SeldomF2Frequent to continuousand/or long exposureSelect F2 if a person is exposed to the hazard frequently. It isirrelevant whether it is the same person or a different person.Select F1 if access is only required from time to time and theexposure time is short.P – Possibility of Avoiding the HazardP1Possible under specific conditionsP2Less possibleDetermine the possibility of avoiding the hazard if the monitoring& control devices used (such as light curtains) failed. This isgenerally related to the speed at which the hazard moves,proximity to the hazard, level of training, and expertise ofoperators. If, in your opinion, the operator could recognize thehazard and avoid injury, select P1. Otherwise, select P2
Risk Assessment – ANSI B11.0Severity of harmCatastrophicSeriousModerateMinorVery leNegligibleProbability ofoccurrence of harm
Risk Assessment – ISO 13849
Machine Guarding Hierarchy
Control IntegrityMay 9, 2012
Global StandardsMachine Guarding Trends Global users choose the “highest” standardo Tend to be ISO due to legal requirementso Desire one machine globallyo Should not have lesser safety requirementsdepending upon countryo Allows for global design standards OEMs design to customer specs
Global StandardsMachine Guarding TrendsUser Customer DemandOEM SpecialStandard requirementsOEM Standard Design
Lockout TagoutOSHA 1910.147 The control of Hazardous energyANSI Z244 Lockout/Tagout Lockout whenever a body part is put into a point ofoperation Production related issues may be performed using“alternative measures which provide effective protection”.
Alternative MeasuresMay only be used for tasks that are part ofthe normal production and operation Routine Repetitive Integral to the manufacturing processExamples: jam clearing, tool changes,lubrication, roll polishing
Alternative Measures Allows for rapid access Maintains safety of employees ANSI Z244 provides specific process
Alternative Measures Process Requirements(3 steps) Risk assessment Hierarchy of control defined Control circuit integrity defined
Alternative MeasuresOSHA Instruction CPL 02-00-147 (Highlights) Directive to inspectors to address ANSI Z244.1 Machine guarding becomes an importanteconomical alternative to LOTO Hazardous energy that is present must be released Apply this safeguard through a risk assessmentprocess Control reliability would providealternative safeguarding measures
Risk ReductionANSI B11.19 HierarchyOnly methodsrecognized by OSHAb) Safeguarding devicesa) Guardsc) Awareness devicesd) Safeguarding (work) methodse) Safe work procedures
Risk ReductionControl circuit integrity (Z244)a) Negligible Risk Potential - Infrequent exposure, low injury severity– Single channel hardwired circuitb) Low Risk Potential – Frequent exposure and low injury severity– Dual channel hardwired circuitc) Medium Risk Potential – ANY exposure to serious injury– Dual channel hardwired circuits that are redundant and monitoredd) High risk potential – ANY exposure to catastrophic injury– Requires control reliable components”
Alternative Measures Must use traditional lockout for maintenanceAlternative lockout for production (routine,repetitive, & integral) Requires risk assessment Concerned with hazardous energy Control reliable systems can be aneffective means Exclusive control by the employee
Alternative MeasuresLockout costs (time related): Initial problem occurs Troubleshooting the true problem Locating repair parts Lockout all energy sources Repair installation Restart
Alternative MeasuresAlternative lockout reduces the risk of anoperator missing a LOTO for one energy sourcewhen he is rushed.Alternative lockout reduces the time required toput the machine into a safe mode.TIME MONEYSAFETY PRODUCTIVITY
Which Standard Applies?Complex equipment must comply with IEC61508, regardless of which standardabove is used. This falls under the responsibility of the component manufacturer,not the system designer.
Control SystemThe Control systemdoes NOT END with the wire!It includes all components involved in performing the safety function;sensors, manual input, and mode selection elements, interlocking anddecision-making circuitry, and output elements that control machineoperating devices or mechanisms.Mechanical ControlDevicesInput devicesLight curtainsPalm buttonsEtc.ControlSystemLogicAir & HydraulicValvesMechanical latchesEtc.
Machine GuardingB11.19 HighlightsSection 6 General Safeguarding Requirements:Requires monitoring of all safety circuit applicationsinvolving stopping distances where the stopping timemight change based on the systems components(sticky valve, worn spring on a switch, etc.)
Safety ValvesANSI B155.1 Packaging Machinery Standard7.2.9.2 Stop functions When pneumatic or hydraulic elements are incorporated intoa safety stopping function, the circuit design and componentselection shall be appropriate for the required level of safetyperformance. Devices that produce a hazard shall havepower removed during a stop function, provided a greaterhazard is not created in the process.
Global StandardsMachine Guarding Trends Introduction of Functional Safety TR6 Revision Export OEMs Harmonizing IEC 62061 & ISO 13849 Equate SIL & PL ANSI harmonization
Global Machine GuardingStandardsEric Cummings – ROSS CONTROLSGlobal Industry Manager - SafetyEric.cummings@rosscontrols.com803-622-1161
Machine Guarding Trends. Global Standards Machine Guarding Trends The CE Mark denotes that the manufacturer has declared his product in compliance with all the . Microsoft PowerPoint - Region IV VPPPA - 2012 Conference - Global
Point-of-contact guarding Location guarding Area guarding. There are three types of strategies for guarding moving machine parts: guarding at the point of contact, guarding by locating \൭oving machine parts out of normal reach, and enclosing multiple moving parts in a single guard or preventing access to moving p對arts in a specific .
Procter machine guarding Procter machine guarding is part of Procter bros., a family owned business established in 1740. Across our business and in all our divisions, we put great emphasis on both high product quality and outstanding customer service. Procter machine guarding manufactures and supplies a very wide range of high quality products .
machine guarding system with new mesh panels, doors and locks. ISO 12100 ISO 14120 ISO 14119 ISO 10218-2 ISO 13857 ISO 14121-1 Better Safe Guarding. WHEN TESTING OUR PRODUCTS, WE USE A METHOD THAT ITSELF IS CERTIFIED BY TÜV. 08 MACHINE GUARDING TROAX SLIDING DOOR ON W HEELS
Source: OSHA PPT 10-hr. General Industry -Machine Guarding v.03.01.17 32 Created by OTIEC Outreach Resources Workgroup Types of Machine Safe Guards Adjustable guards: Shuts off or disengages power Stops moving parts Prevents starting of machine when guard is open Source: OSHA PPT 10-hr. General Industry -Machine Guarding v.03.01 .
minimum requirements for machine guarding at Western Carolina University (WCU). The purpose of machine guarding is to protect the machine operator and other employees in the work area from hazards created by in-running nip point, rotating parts, flying chips, and sparks. Safeguards are
ILO regulatory approach to the guarding of machinery The Guarding of Machinery Convention, 1963 (No. 119) and the Guarding of Machinery Recommendation, 1963 (No. 118) aim to protect workers from hazards related to machinery. These instruments deal with a single specific hazard, within the category of instruments dealing with specific risks.
Review Machine Guarding –When is Machine Guarding sufficient Related Standards E-Stops Performance and Control Reliability –Safeguards –Circuit Integration (relays contactors) Examples of machine guarding in Minor Servicing Region V Top 10 Most Frequently Cited (Manufa
analytical thermal model. 2. System Dynamics The dynamic representation of the drivetrain system is achieved through a multi-degree of freedom system model. The torsional model comprises 9 degrees of freedom (9-DOF) including a dry friction clutch disc as shown schematically in Figure1. Each inertial element represents a component of the .
