intermediate relay

The Electrician’s Handbook: A Comprehensive Guide to PLCs, Sensors, Encoders, Inverters, and Relay Wiring

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The Electrician's Handbook: A Comprehensive Guide to PLCs, Sensors, Encoders, Inverters, and Relay Wiring

On the grand stage of modern industrial production, various automation devices resemble precision instruments, collectively playing a symphony of efficiency, accuracy, and safety. Core devices such as PLCs, sensors, encoders, inverters, and relays not only perform unique roles but also collaborate closely to ensure the smooth operation of the entire production process. Next, let us … Read more

Can a PLC Bypass Relays to Directly Control Contactors?

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Can a PLC Bypass Relays to Directly Control Contactors?

This depends on the specific model of the PLC. PLCs can be categorized into relay output, transistor output, and thyristor output. Relay-type PLCs can directly control contactors, while transistor and thyristor-type PLCs cannot directly control contactors. The maximum output current of relay-type PLCs is 2A, which can drive AC and DC loads. The allowable load … Read more

Easily Control Lights with Raspberry Pi DIY

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Easily Control Lights with Raspberry Pi DIY

Recently, I have been researching microcontrollers and the security of IoT-based devices. Therefore, I started considering building a small home automation system. Although it is not yet complete, I would like to share how I use Raspberry Pi 2 and some other electronic components to control the lights in a room. Of course, I will … Read more

Why Must PLC Output Terminals Use Intermediate Relays? Two Indispensable Reasons!

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Why Must PLC Output Terminals Use Intermediate Relays? Two Indispensable Reasons!

Abstract: In automation control systems, PLCs are responsible for processing and executing various logical operations and control tasks. However, in practical applications, we often add an intermediate relay to the output terminals of the PLC for two main reasons.First Reason: It is impossible to use without an intermediate relay First, let’s explore the first reason: … Read more