86. Graphical symbols for sequence control
This is a list of the drawing symbols used in sequence diagrams. Please refer to this at the time of preparing sequence drawings.
(1) Contact function drawing symbols
Function | Symbol | Function | Symbol |
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Contact function |
Position switch function |
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Shutting off function |
Delay function |
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Circuit opening function |
Automatic recovery function |
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Function of switching ON and OFF the load |
Automatic recovery function |
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Automatic detaching function |
(2)Operation mechanism drawing symbols
Function | Symbol | Function | Symbol |
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Manual operation (general) |
Operation using a detachable handle |
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Pulling operation |
Operations using a key |
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Twisting operation |
Cranking operation |
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Pressing operation |
Cam operation |
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Proximity operation |
Motor operation |
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Emergency operation |
Compressed air operation or water pressure operation |
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Handle operation |
Operation using an electromagnetic effect |
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Foot pressing operation |
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Lever operation |
Operations using other methods |
(2)Operation mechanism drawing symbols
Contact type | Make contact symbol | Break contact symbol |
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Manual operation automatic recovery |
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Non-automatic recovery contact |
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Limit switch contacts |
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Solenoid relay contact |
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Electromagnetic contactor contact |
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Limit operation contact |
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Recovery contact during a limit |