SYSTEMS AND METHODS FOR SAFETY INPUT DEVICES

A system includes a safety controller that, in operation, interrupts power to industrial automation devices or puts the system into a safe state upon command of a human operator. The system also includes an emergency stop switch circuit actuatable by a human operator and a human machine interface in...

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Bibliographische Detailangaben
1. Verfasser:	Dotson, Gary D
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING RELAYS SELECTORS SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Beschreibung
Zusammenfassung:	A system includes a safety controller that, in operation, interrupts power to industrial automation devices or puts the system into a safe state upon command of a human operator. The system also includes an emergency stop switch circuit actuatable by a human operator and a human machine interface in data communication with the safety controller and the emergency stop switch circuit. The human machine interface includes integrated safety circuitry that, in operation, detects a change of state of the emergency stop switch circuit and provides a signal to the safety controller to interrupt power to the industrial automation devices or put the system into a safe state.