Control Isolation Interlocking
As Trapped Key interlocking systems create a safe sequence of operation for plant operators to gain safe access into a machine, these sequences typically begin by breaking the machine's safety control circuits, electrically isolating the machine's power supply and creates a safety-related stop function which puts the machine into a safe state of operation in accordance with ISO13849.
This is typically achieved by turning and removing the key that remains trapped within the lock of the control isolation switch. This key can then be used to initiate the next step within the entry sequence.
The mGard range contains a variation of control isolation switches that all have been designed for use within a specific application scenario. These devices can either be directly mounted within a machine's control panel or can be housed in a variety of enclosure types so that they are suitable for use within a series of industries that are notorious for arduous environmental conditions.