Back

 

Troubleshooting Electrical Controls

 

Learn To Quickly And Effectively Troubleshoot Electrical Control Circuits

 

Class Length 1-Day

Includes Eight "Hands-On" Labs

 

Course Outline 

 

 

Labs Using

        Control Relays

        Plug-In Relays

        Time-Delay Relays

        Solid-State Relays

        Motor Starters

        Pushbuttons

        Selector Switches

 

Reading Ladder Diagrams

        Tracing Through The Drawings

         Wire Numbers

        Cross Referencing

 

Switches

        Contacts

        Manually Operated Switches

        Automatic Switches

        Schematic Symbols

 

Relays

        Coils, Contacts

        Control, Plug-In

        Time Delay, Solid-State

           

Motor Starters

        Coils, High Voltage Contacts

        Auxiliary Contacts, Overloads

 

Solenoids

        Coils, Operation

 

Control Circuits Discussed

        Permissive

        Interlocking

        Holding/Seal-In

        Master Control

        Time Sequencing

        Event Sequencing

        Start/Stop

        Jog/Off/Run

        Hand/Off/Auto

        Forward/Reversing

 

Troubleshooting Shorts

        Dead Shorts, Stuck Contacts

        Indications, Causes, Finding Shorts

 

Troubleshooting Opens

        Indications, Causes

        Finding Opens With A Voltmeter

 

Troubleshooting Techniques

        A Logical Approach

        Effectively Using The Prints

        Tracing Through Circuits

        Time Saving Tips For Locating Opens

        Eliminating Shorts Quickly

        Correctly Using A Voltmeter

           

 Back