Ladder Diagram Symbols. Study the various symbols identified in this presentation. Once you have memorized the different symbols and can name them, take.

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Presentation transcript:

Ladder Diagram Symbols

Study the various symbols identified in this presentation. Once you have memorized the different symbols and can name them, take the flashcard quiz, separate from this program

N.O. Push Button N.C. Push Button N.O. & N.C. Push Button Knife Switch / Toggle Switch N.O. Limit Switch N.O. Limit Switch Held Closed N.C. Limit Switch N.C. Limit Switch Held Open Input Symbols

LR N.O. Pressure Switch N.C. Pressure Switch N.O. Float Switch N.C. Float Switch N.O. Temperature Switch N.C. Temperature Switch Three Way Selector Switch

N.O. On Delay Contact N.C. On Delay Contact N.O. Off Delay Contact N.C. Off Delay Contact N.O. Contact N.C. Contact Normally Open Proximity Switch Normally Closed Proximity Switch

R F Indicator Light Motor Coil, Forward Solenoid R Motor Coil, Reverse CR Control Relay Coil TR Timer Relay Coil Output Symbols

Other Symbols Fuse Transformer Ground Overload Buzzer Horn/Alarm Bell EXIT