8/17/2019 QZ 2009 11 Brochur

1/24

8/17/2019 QZ 2009 11 Brochur

2/24

8/17/2019 QZ 2009 11 Brochur

3/24

 

8/17/2019 QZ 2009 11 Brochur

4/24

8/17/2019 QZ 2009 11 Brochur

5/24

Rexroth supports machine and

production system manufacturers

with know-how and individual

consulting. The guideline

“10 Steps to Performance Level”

supports you by the evaluation of

risks systematically and accordingto standards, by designing and

implementing the corresponding

safety measures.

We gladly support you personally –

please contact us.

                              

          

               

         

             

                        

                    

8/17/2019 QZ 2009 11 Brochur

6/24

         

   

8/17/2019 QZ 2009 11 Brochur

7/24

The ISO 13849 shows the way to

fulfill the safety requirements of

the European Machinery Directive

for control systems. This standard

considers the design and integra-

tion of safety-related parts of a

control system (SRP/CS), regard-less of the applied technology, such

as electrical, hydraulic, mechanical

or pneumatic. Furthermore, IEC

62061 regulates the specifications

specifically for electronic control

systems.

The focus is on the parts of the

control system which are relevant

to the safety of the machine.

As soon as the safety of a machine

depends on a correct function of

the control system, it is therefore

Additional information can be found under:

called “Functional Safety” with

special requirements on the avail-

ability of the Safety Function.

8/17/2019 QZ 2009 11 Brochur

8/24

The new design criteria and

probabilistic calculations cover

safety engineering classifications

of components and systems for

nearly all stationary and mo-

bile machines. For this purpose,

suppliers must provide informa-tion about the reliability of all

involved electrical, hydraulic,

mechanical and pneumatic

components.

Rexroth provides these data with

all necessary additional infor-

mation.

Because of our product know-how

and worldwide application experi-

ence, we know the interactionsand interdependency between the

different technologies applied for

mechatronic systems. Take advan-

tage from our knowledge.

8/17/2019 QZ 2009 11 Brochur

9/24

8/17/2019 QZ 2009 11 Brochur

10/24

Dividing the complex regulations

into clearly defined working packages:

This guideline shows the way from

the risk assessment up to finally

implementation and evaluation of the

reached safety level.

This systematics supports you in

implementing the current state of the

art of safety engineering for personnel

protection in an economical and well

documented way.

8/17/2019 QZ 2009 11 Brochur

11/24

 

8/17/2019 QZ 2009 11 Brochur

12/24

 

                             

                                            

                  

8/17/2019 QZ 2009 11 Brochur

13/24

 

8/17/2019 QZ 2009 11 Brochur

14/24

 

 

 

 

 

 

 

8/17/2019 QZ 2009 11 Brochur

15/24

    

      

     

    

    

   

   

   

8/17/2019 QZ 2009 11 Brochur

16/24

 

 

 

 

8/17/2019 QZ 2009 11 Brochur

17/24

 

 

 

 

8/17/2019 QZ 2009 11 Brochur

18/24

 

     

   

8/17/2019 QZ 2009 11 Brochur

19/24

 

 

   

 

   

   

 

 

                

                        

8/17/2019 QZ 2009 11 Brochur

20/24

 

 

 

 

 

 

 

   

8/17/2019 QZ 2009 11 Brochur

21/24

 

 

 

 

  ■ 

  ■ 

  ■ 

  ■ 

  ■ 

  ■    ■ 

  ■ 

 

■ 

■ 

■ 

■ 

■ 

■ 

 

8/17/2019 QZ 2009 11 Brochur

22/24

 

 

 

 

 

 

 

 

8/17/2019 QZ 2009 11 Brochur

23/24

 Discrete level used to specify the

ability of safety-related parts of control systems to

perform a safety function under foreseeable conditions

Required Performance Level

 Safety Integrity Level

(appropriated only for electronic control systems,

see PL and IEC 62061)

Statistic expected value

of the mean time to failure

  Statistic

expected value of the mean time to dangerous failure

Unit used to measure the failure rateof electronic components (1 FIT=1x10-9/h)

 

Probability of dangerous failure per hour (reference

value for PL and SIL)

Statistic expected value of the number of cycles until

10% of the components have exceeded specified limits

(response time, leakage, switching pressure, …) under

defined conditions

Expected number of cycles until 10% of the compo-

nents fail dangerously 

Expected value of the mean time until 10% of the

components fail dangerously (maximal service time

of a component).

   Service life

Diagnostic Coverage

Common Cause Failure Safety-Related Parts of a Control System

 Failure which has the potential to

put the SRP/CS in a hazardous or fail-to-function

state

8/17/2019 QZ 2009 11 Brochur

24/24