Tag: Controllers

The PNOZsigma relays are compact safety relays in widths 22.5mm and 45mm. They are used for monitoring E-STOP, safety gates, light barriers, two-hand controls or ESPEs with safe PNP transistor outputs and contact EDM. The relays are jumper link programmable for either PNP or NPN signals. http://www.pilz.com

They must be connected to a remote RESET device such as a pushbutton station to initiate the reset enabling function. The remote reset can reset the contacts if the pushbutton is held closed for more than 0.5s and can reset both the contacts and the internal relays if the pushbutton is held closed for more than 3s.

The chapter “Technical Description” is the first of several chapters that provide technical details of the PNOZsigma relays. The chapter is an introduction to the PNOZsigma relay range and offers an overview of the product range and the functions that are common to all relays in the range, before giving the variable features of the individual relays in later chapters. Safety solution provider since 2011, We offer pilz safety relays pnozsigma http://www.pilz.com

Safety relays monitor the faults in the interlock devices. The basic logic used is based on the conditions of the input and output wiring. Input wiring is the voltage that the safety relay will accept to energize the relay to switch the output contact. The output contact will turn the machine off using the interlock devices. Internal logic is represented in the truth table, which shows the relationship between the input and the output wiring. From the truth table, the next step is developing the functions and faults equations. These equations are very important to find the minimal sum of products, which later develop the ladder logic. The final considerations are to implement the functions equation into the ladder logic. The safety relay also must be user friendly to someone troubleshooting the system. A fault in the system can be determined through testing the machine and forcing the input wiring to simulate a fault condition. LED indicators are useful to show the system is functioning, off, and a fault in the system. The last consideration is the modification of the function block. If a function’s equation is changed, the ladder logic can also be changed using software and just download it to the safety relay. http://www.felcro.co.id

Safety relays are the logical development of electromechanical relays, during those applications where safety, availability, and their costs are the major concern. These relays have enabling contacts and mirror contacts in one or more linked pairs which change over when the relay is actuated. Safety relays are used for monitoring the dangerous outputs and provide superior failure mode analysis such as a light curtain to assure that it does not decrease harm. http://www.felcro.co.id

Operator devices PMI (Pilz Human Machine Interface) are used to operate, monitor and control your technical processes. We can offer you a wide range – from a simple diagnostic unit to an operator terminal for challenging applications. Our compact operator devices offer maximum functionality. They are easy to integrate into your production and automation system. Good visualisation and diagnostics also mean shorter downtimes and therefore increased efficiency. When an error occurs, machine diagnostics have a special role to play. Used in conjunction with Pilz controllers, you have a system that enables rapid troubleshooting when production errors occur. http://www.pilz.com