Machine Building Features

Verifying and validating the safety system design

Verifying and validating the safety system design

Designing safety control systems in accordance with global standards helps machine builders and manufacturers to drive up productivity; more importantly, standards compliance makes a huge contribution to the safety and wellbeing of workers as well as the protection of capital assets. Wayne Solberg reports.

A unified, sub-systematic approach to safe machine control

A unified, sub-systematic approach to safe machine control

At some point in the future the functional safety standards EN ISO 13849 (with its Performance Levels, PL) and EN 62061 (with its Safety Integrity Levels, SIL) will merge; a joint technical committee ISO/TC 199 - IEC/TC 44 is currently working on this merger. 

Electromagnetic compatibility: the safety issues

Electromagnetic compatibility: the safety issues

While electromagnetic compatibility (EMC) is a machinery safety issue that many machine builders find complex, there can be no doubt about the need for it. For example, if the control system of a machine experiences electromagnetic interference it may malfunction and create a dangerous situation. Conversely, if the electrical and electronic systems fitted to a machine generate a high level of interference, they may also cause other equipment nearby to malfunction.

Test system gets straight to the point

Test system gets straight to the point

Actuators that switch railway points are clearly mechanisms that are highly safety-critical. Proof that these actuators meet the requirements of exacting railway standards is one of the main functions of a new test system designed by QM Systems with some motion technology help from Lenze.

Achieving a smoother transfer around curves

Achieving a smoother transfer around curves

Munich-based chain manufacturer, iwis has developed magnetic curves for flat top chains that achieve almost pulsation free running. This is the result of maintaining uniformly aligned magnetic fluxes throughout all tracks, allowing products to be conveyed with exceptionally low tensions and reduced noise.

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