A quickSTEP Online Course

Basics of Control Components

A quickSTEP Online Course

? Siemens Industry, Inc.

usa.step

Trademarks

Siemens is a trademark of Siemens AG. Product names mentioned may be trademarks or registered trademarks of their respective companies. National Electrical Code? and NEC? and NFPA 70? are registered trademarks of the National Fire Protection Association. NEMA? is a registered trademark and service mark of the National Electrical Manufacturers Association. UL? is a registered trademark of UL, LLC. Other trademarks are the property of their respective owners.

? Siemens Industry, Inc. 2017

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Course Topics

? Siemens Industry, Inc. 2017

Welcome to Basics of Control Components. This course covers the following topics:

Chapter 1 - Introduction ? Symbols and Diagrams ? Overcurrent

Chapter 2 ? Starter Basics ? Manual Control ? Starter Components

Chapter 3 ? Motor Starters ? NEMA Starters ? IEC Starters

Chapter 4 ? Other Devices ? Lighting Contactors ? Pilot Devices-Limit Switches ? Other Components ? Safety Products

If you do not have an understanding of basic electrical concepts, you should complete Basics of Electricity before attempting this course.

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Course Objectives

Upon completion of this course you will be able to... ? State the purpose and general principles of control components and circuits ? State the difference between manual and automatic control operation ? Identify various symbols which represent control components ? Read a basic line diagram ? Describe the construction and operating principles of manual starters, electromagnetic contactors,

and electromagnetic motor starters ? Explain the need for motor overload protection ? Briefly describe the operation of thermal and electronic overload relays ? Describe the advantages of reduced-voltage motor starting ? Describe the types and operating principles of lighting contactors ? Describe the operating principles of control relays ? Summarize the types of NEMA control products offered by Siemens ? Summarize the types of products included in the SIRIUS family of IEC control products ? Briefly describe uses for IO-Link, AS-Interface, and ASIsafe ? List examples Siemens Safety Integrated for Factory Automation products

? Siemens Industry, Inc. 2017

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SIRIUS Modular System

Siemens SIRIUS product range comprises devices for use in switching, starting, protecting, and monitoring, as well as combinations such as load feeders. Because all devices are matched to one another both electrically and mechanically, they can be easily combined to create load feeders. Siemens also offers a full range of NEMA control components and enclosed controls.

? Siemens Industry, Inc. 2017

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SITRAIN? Training for Industry

Online Self-paced Learning ? Programs with maximum flexibility so students can easily fit courses into their busy schedules

Virtual Instructor-led Learning - Classroom lectures delivered in the convenience of your home or office

Classroom Learning - Expert and professional instructors, proven courseware, and quality workstations combine for the most effective classroom experience possible at your facility or ours

How-to Video Library - Quick, affordable, task-based learning options for a broad range of automation topics for training or purchase

Simulators - World-class simulation systems available for training or purchase

This course also describes learning options available from the Siemens SITRAIN USA organization and our global SITRAIN partners. For additional information: usa.sitrain

? Siemens Industry, Inc. 2017

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Chapter 1 - Introduction

This chapter covers the following topics:

? Symbols and Diagrams

? Overcurrent

? Siemens Industry, Inc. 2017

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Control

? Siemens Industry, Inc. 2017

Control, as it relates to machines and processes, is a broad term that means anything from basic manual control to automated control of a complex system. Control is considered to be manually operated when someone must initiate an action for the circuit to operate. For example, someone might have to flip the switch of a manual starter to start or stop a motor.

Although manual operation of machines is still common, many machines are controlled automatically. Frequently there is a combination of manual and automated control. For example, a machine that is started manually may stop automatically when certain conditions are met.

While many control applications involve motors, control components are also used with other equipment. Various types of control components are used for switching, starting, protecting, detecting, monitoring, communicating, and other functions.

Before discussing specific control devices; however, it is important to understand some basic symbols and diagrams. The symbols and diagrams described in this course are commonly used in North America.

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