Monitoring system for controlling access to such as a machine uses a switch that is coupled to an actuator on the door

摘要

A machine system has a housing frame [2] with an access opening [5] that is controlled by a sliding door [6]. Attached to the door is an actuator bar [8] that engages the system safety switch [7]. When the door is closed the actuator engages a slot in a cab and is retained to click the door. This can only be released when an electromagnetic actuator is operated and this is linked to machine power supply.