Safety for doors locking device HST

To protect the operator, most often dangerous machines and systems are fitted with protective barriers and gates. Apart from using this kind of so-called separating protective devices, it is essential to prevent the triggering of a potentially dangerous machine function under specified conditions in order to ensure the safety of the operating personnel. Which means: the dangerous machine or system must be stopped if the safety door is not closed and locked. Any functioning of the dangerous machine must remain completely disabled or stopped for as long as the safety door is not closed and locked. Such safety critical tasks are performed by so-called key transfer systems. What is a trapped-key interlocking system? A trapped-key interlocking system, also known as key transfer system, consists of at least two components and is intended to prevent the execution of dangerous machine functions under predefined conditions. The core of the system is an individually coded key, which is automatically transferred between the components of a key transfer system. This key transfer typically takes place between the switch-off system of a machine and a so-called guard locking device which is used, for example, to open or lock the maintenance cover of that machine