A two-hand control
safeguarding system is comprised of two basic elements: the hand controls and the control module which provides the logic.
(also called start buttons or actuators) are mechanical push/palm buttons, capacitive touch switches, RF touch switches, or touch-activated photoelectric
devices. In this tutorial, we will limit our discussion to photoelectric devices.
(also called signal processor or control logic) provides the logic. The module monitors the start buttons and signals the machine control when the preconditions have been met.
Two-hand Control Device: (Machine Safety) A control device that requires concurrent use of both of the machine operatorís hands to initiate and continue a machine cycle. [ MORE »