Limit Switches

In Maintenance

About this class



Learn how to recognize, operate and troubleshoot limit switches as well as keeping up to date with maintenance.





Prerequisites


This lesson is designed for participants familiar with AC and DC theory, electrical safety, electrical schematics, and the proper use of test instruments.

Description


This lesson describes limit switches, how they work, how to recognize them, and typical applications they are used in. This lesson discusses maintenance, troubleshooting, and adjustment requirements for the various limit switches.

Objectives


Use limit switches, including defining the purpose, function, and types of limit switches. Explain and visually identify each of the limit switches. Describe safety consideration and know how to ensure that a replacement switch will work correctly describe the internal function of a lever-actuated limit switch and its function in a control circuit. Maintain, troubleshoot, repair, and adjust a lever-actuated limit switch. Describe the internal functions of a photoelectric switch and a proximity switch, and explain how these switches are used in a control circuit. Describe the possible malfunctions of these switches. Troubleshoot, maintain and repair these switches. Explain the internal function of a geared limit switch and torque switch in a control circuit. Troubleshoot, maintain and repair these switches.

Contents

This is the first lesson in the iKNOWâ„¢ Limit Switches Library. This
lesson describes limit switches, how they work, how to recognize them,
and typical applications in which they are used.

  • iKNOW Limit Switches Overview

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