ISO 13849-1 Machine Guarding adoption, part 2

The scope statement in the machine guarding standard reads, “This part of ISO 13849 provides safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software. For these parts of SRP/CS, it specifies characteristics that include the performance level required for carrying out safety functions. It applies to SRP/CS, regardless of the type of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.), for all kinds of machinery.” Good stuff, right? At the end of December 2011 EN 954-1; 1996 can no longer be used to demonstrate conformity.

08/24/2011


April 2011 Control Engineering cover story on machine safety show results of a Control Engineering-VDC Research survey showed that well over half the respondents will or may need help to comply with the year-end 2011 machine guarding directive.The scope statement in this standard reads, “This part of ISO 13849 provides safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software. For these parts of SRP/CS, it specifies characteristics that include the performance level required for carrying out safety functions. It applies to SRP/CS, regardless of the type of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.), for all kinds of machinery.” Good stuff, right?

   And, according to the European Machinery Directive, at the end of December 2011 EN 954-1; 1996 will be withdrawn and can no longer be used to demonstrate conformity.

 JB Titus, CFSE  Over the last 15 years EN 954-1 did a great job of helping OEMs, systems integrators, and end users understand categories of hazards and the importance of mitigating those hazards to acceptable levels and improve overall safety. Also, over the last fifteen years automation suppliers have stepped to the plate bringing a lot of new products to market designed, tested and certified for safety applications. Many of these new products are hardware and software based offering complicated new sources of possible failures and potential hazards. In my opinion, this transition in innovation for safety technology to a large part has driven the need for a quantitative approach to evaluate the performance level of safety circuits and to include the evaluation of software. Specifically, the level of diagnostics included in the software.

   The system designers from the OEM’s and systems integrators will use EN ISO 13849-1 and the quantitative analysis of the safety circuits to determine the performance levels to achieve required safety functions during the design phase. This gives the designers the flexibility to modify the design in order to meet the acceptable hazard levels determined in the risk assessment. So, life is good – right?

   Well, in my mind the transition for the end user is a little bit different. Under the qualitative approach of EN 954-1 the OEM, systems integrator, and end user all likely had the competencies to demonstrate conformance. Under EN ISO 13849-1 do all of the end users have the competencies to demonstrate conformance when compared to the system designers of the OEM’s and systems integrators? Only you can answer this question. According to a Control Engineering survey via Webex in April of this year respondents were asked if they needed outside help or tools in order to meet the compliance requirements. A full 38% indicated they needed help and 42% indicated maybe or unsure!(See pie graph, above.)

   I’m not sure how many of these respondents were end users, but we’d sure like to know your opinions, questions, or experiences and what you can add to this discussion?

   Your comments or suggestion are always welcome so please let us know your thoughts. Submit your ideas, experiences, and challenges on this subject in the comments section below. Click on the following text if you don't see a comments box, then scroll down: ISO 13849-1 Machine Guarding Adoption, Part 2.

   Did you see the Safety Integration Webcast?

   Related articles:

ISO 13849-1 Machine Guarding adoption, Part 1

EN ISO 13849-1; 2008 – Are We Ready By December 2011?

Cover story: Machine Safety Integration

Trouble Implementing ISO 13849-1; 2006 per the European Machinery Directive

   Contact: www.jbtitus.com for “Solutions for Machine Safety”.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
2016 Product of the Year; Diagnose bearing failures; Asset performance management; Testing dust collector performance measures
Safety for 18 years, warehouse maintenance tips, Ethernet and the IIoT, GAMS 2016 recap
2016 Engineering Leaders Under 40; Future vision: Where is manufacturing headed?; Electrical distribution, redefined
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Safety at every angle, Big Data's impact on operations, bridging the skills gap
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Driving motor efficiency; Preventing arc flash in mission critical facilities; Integrating alternative power and existing electrical systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role of plant safety and offers advice on best practices.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me