Leuze Electronic launched its Rotoscan RS4-4M Safety Laser Scanner at the Hanover Trade Fair 2008. Intelligent sensors are able to perform several tasks at one time.

A task can therefore generally be completed quicker and easier - and the user saves money. The new Rotoscan RS4-4M Safety Laser Scanner is a good example of this type of function integration. The 'M' in the product name stands for motion; it indicates that, on the basis of the sound measurement of speeds and distances, this new scanner is best suited to mobile applications.

A Motionmonitoring function allows up to six speed values to be monitored and detection zones to be adjusted as required. No additional encoders are required - the entire functionality is performed by the scanner and the PLC. A safety PLC is therefore no longer necessary in most cases. The detection zone, determined by the travelling direction and travelling speed of the vehicle, is adjusted on the basis of the detection zones and their situation-conditional activation. This, in turn, enables a more efficient operation of transfer trolleys (also known as AGVs - automated guided vehicles).

The Rotoscan RS4-4M also benefits from a new measuring procedure that enables it to measure distances to and from defined reference planes. This procedure makes it possible to precisely determine positions. A transfer trolley can therefore stop exactly where it is supposed to in front of a conveyor belt to transfer the transported material.

In addition to the classic areas of application with danger area guarding on mobile systems, the Rotoscan RS4-4M extended version also has the necessary approvals for vertical access and danger point guarding. The laser scanner's resolution can be varied from 30-150 mm.

RS4-4M Safety Laser Scanner