Pilz safety relay is the best solution for monitoring and immediately switching off safety E-STOP pushbuttons, according to the guide in EN 60204-1. Pushbuttons should drop the power to the machine and prevent hazardous movement. Since there is no direct solution for using a safety PLC to monitor the state of an E-STOP pushbutton, we can return the pushbutton to a safe state. These relays are also used to monitor start/restart circuits, the application with regard to stopping any movement using monitored movement detection function with immediate output cut, i.e. turning off the machine. Report a problem. This type of circuit monitoring generally solves the requirements of control reliable stopping. Safety relays generally provide the expediency of monitoring many conventional safety circuits, termed logic level devices, such as emergency stop buttons, safety gates, light curtains, two hand controls, etc., all with considerably less wiring than hardwired solutions and provide an output to a controlled stop for a machine. http://www.pilz.com
Safety relays are generally recognized as electromechanical relays which were developed with the primary objective of monitoring the conditions of the relaying contacts. If an unsafe condition occurs, the relay will ‘trip’ and remove power from the load. The relay may also include logic to determine the type of fault and to prevent re-energizing the load if the fault is considered minor. Safety relay has become the best and efficient preventing measures for accidents occur in machine. Safety relay has been designed to be durable, ensuring machine safety circuit is easy to test, maintenance is easy, and replacement of safety relay is available and enables the user to determine immediate safety relay failure. Due to the increase in demand in the industrial sector for safety relay, some safety relay manufacturers have been developing relay safety products by adding more features to it. One of the renowned companies in this matter is PILZ. Pilz is a company which was founded in the year 1948 by Hermann Pilz in a town called Ostfildern, Germany. Pilz initially operated as a glass bending plant and manufacturer of glass products. Since then, Pilz has been expanding their business and has become a well-established electronics, manufacturing, and consulting firm with its headquarters located in Ostfildern, Germany. Pilz has been putting relentless effort into improving industrial safety and health for the worldwide industry. To accomplish their aim, Pilz has been actively involving themselves in research and development to produce some of the best products for industrial safety, one of which is the safety relay. http://www.pilz.com