63073 Offenbach am Main
The safety of the personnel plays an important part in any situation where heavy loads are being moved or lifted. The machinery directive is clear about the requirements that must be fulfilled by the control technology as overload protection in cranes or other applications. Germany's first certified system solution for overload protection in crane systems is now being introduced by tecsis GmbH at the Bauma exhibition. The "DGUV Testing and Certification Body for Lifting Gears, Safety Components and Machinery" has awarded PLd/SIL2 certification to the so-called ELMS1 overload protection, which consists of a central controller, up to four redundant force transducers and the relevant software in accordance with DIN EN ISO 13849 and DIN EN 62061. The main advantage for the user is that complicated individual certification of the overload shut-off of the crane system is not required if the ELMS1 overload protection is used.
The main ELMS1 safety controller has safe analogue and digital inputs and outputs, relay outputs and semiconductor outputs to which force transducers and other sensors can be connected. To monitor loads in all relevant measuring ranges, for example, the load pins F53S8 can be used. The load pins have two channels per sensor and therefore allow redundant measurement. The load pins have an integrated amplifier. This means that they can also be integrated in the crane if the amount of available space is restricted. Typical examples of installation locations are the cable reels in the crane system. tecsis adapts the load pins individually to the respective customer application. This applies to the measuring range and the geometry alike. The system makes it possible for the force transducers to be calibrated automatically during the commissioning of the crane system. Because of this and the certification that is already available, the user saves a great deal of time and therefore money during crane construction.