
Applying Functional Safety to Rail Mounted Mobile Machines
Rail mounted mobile machines are prolific in the mining industry and are used in many applications such as stacking of material on stockpiles, reclaiming of material and the loading of large bulk carrier ships. In normal operation these machines are usually operated remotely (but not always e.g. ship loaders) but due to their size and capability there are many personnel, financial and environmental risk scenarios associated with their operation and maintenance, for example: Collision with other machines, maintenance equipment, tie-down cradle Collision with stockpile Operating beyond final limits Boom tip overspeed Depending on the machine type and installation the above scenarios can all lead to machine collapse and potential multiple fatalities. These machines are designed to meet the requirements /...