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For more information on tec.nicum engineering services, please contact:

Devin Murray
Engineering Services Manager
Functional Safety Engineer  (TÜV Rheinland, #4274/11, Machinery)
914-419-3731
dmurray@schmersal.com

 

Content

Conception of safety solutions - tec.nicum Engineering

We can provide expertise for every life-cycle phase of machine and plant construction, involved in the design of new machinery and process, and the retrofitting of safety functions during the modernization of older machines. We also perform stop time measurements to calculate safety distances for various guarding systems and carry out the validation of safety functions and provide necessary documentation.

 

Services offered:

Pressure and Force Limit Analysis

Measurement tests according to ISO/TS 15066

Within collaborative robot applications where there exists direct interaction between a human operator and a robot, collisions between the two cannot be overlooked, but rather expected as a reasonable foreseeable event. ISO/TS 15066 specifies the safety requirements for collaborative robot systems and the work environment, and also provides further guidance on collaborative industrial robot requirements given in ISO 10218.  Among these specifications are the permissible limits for force and pressure deriving from the collaborate robot and are described as transient and quasi-static forces. Our Engineering Services group can perform the necessary pressure and force limit measurements on collaborative robots, and provide analysis of the results.
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Stop Time Analysis

Machines and applications which have non-separating primary safety devices (e.g., light curtains, laser scanners, safety mats, two-hand controls, etc.) must be evaluated to ensure the safety device is placed at the correct minimum safe distance according to ISO 13855. This is a crucial step in selecting and installing the safety device as it must be confirmed that the hazardous condition is abated by the time an operator triggers the safety function and reaches the guarded hazard. One parameter needed for this evaluation is the stopping time of the equipment which can be obtained by conducting a Stop Time Analysis.
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Technical project planning

One of the most important phases in the modification of a machine or production line is engineering prior to the conversion work. This lays the foundations for the quality of subsequent implementation. The aim is to develop technical safety solutions for machines and systems. 

tec.nicum defines the necessary safety elements and investigates the PL, SIL and PFHd values required. At the same time, the tec.nicum engineer can show you the best way to implement the modification.


Validation of safety functions to ISO 13849-2

Based on ISO 13849-2, tec.nicum produces all the documents (validation plan, error lists, calculations, etc.) and carries out the validation of safety functions by means of analysis and testing.

tec.nicum checks circuit diagrams for electrical, pneumatic and hydraulic systems and calculates the performance level (PL) and  PFHd for each safety function.


Measurements

tec.nicum engineers can perform stop time analysis to help ensure you are implementing your guarding devices appropriately and at the proper safety distance. Safety Calculations are based on ISO 13855/2010. A statistical way of covering 99.730% of all measured values in normally distributed measurement values is to calculate the mean value ±3 standard deviations. At least ten measurements are required to calculate minimum distance. The highest measured value or the mean plus three standard deviations, whichever is the greater, is used in calculation of the minimum distance.

tec.nicum engineers can also measure electromagnetic capability (EMC) in accordance with the EU EMC Directive.