Protection against overload
Certified safety controller for cranes
For cranes that are not at risk of tipping and for lifting systems, Wika offers ELMS1, a fully certified safety controller for overload protection. It combines safety electronics, software and safety force transducers.
ELMS1 is the world's first dual-hoist system approved by the German Social Accident Insurance (DGUV). The new solution eliminates the need for time-consuming individual certifications that are otherwise required for comparable systems. The ELMS1 safety controller is certified to DIN EN ISO 13849 with performance level "d". Its central module enables automatic adjustment of the total load of up to eight redundant force transducers. With the dual hoist system, up to four containers can be lifted simultaneously.ELMS1 warns of switching thresholds and switches off in the event of an overload.
The safety controller is equally suitable for installation in new and existing systems. ELMS1 has various analog and digital inputs and outputs. The system is also available with various communication protocols such as Canopen and Profibus. as








