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Parker Fluid Control
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| | | Catalog PCC-4/USA Flow Charts | | |
| | | Logic Selection of a Control Technology | | |
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| | | Machine or Sub-Machine with Majority of Pneumatic Actuators Produced on a unit or semi-unit basis and working in a non-explosive environment, with separate control signals and logic processing only. | | |
| | | Selection Criteria | | |
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| | | A | | |
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| | | Volume of Processing Required E + S = N° Inputs / Outputs Tc = Degree of Complexity = N° of Steps + N° of Sequences I + O | | |
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| | | | | | | | | | | "Sequential" | | Electrical | | | | Programmable | | Control with | | | | Controller | | Contacts | | | | • Electro-Pneumatic | | | | | Structure | | | | | • Electrical and Electronic Sensors | | | | | | | | | | |
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| | | Component Symbols | | |
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| | | THRESHOLD NOT Function | | |
| | | TIME Function | | |
| | | OR Function | | |
| | | is=a+b | | |
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| | | Back-Pressure Sensor (Booster Relay) | | |
| | | Air/Electric Interface (Pressure Switch: Non Adjustable) | | |
| | | S = a (Regenerated) | | |
| | | t-| J | | |
| | | YES Function | | |
| | | HIE | | |
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| | | i—«_ | | |
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| | | Not Function (Inhibitor) | | AND Function | | ;i[&pnd b | | INVERTED TIME Function | | |
| | | a7j & h" | | |
| | | a | | |
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| | | b | | |
| | | \i' 0 | | |
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| | | Electric/Air Interface (Pressure Switch: A Non Adjustable) | | |
| | | S-,S = a amplified | | |
| | | MEMORY Function | | |
| | | Amplifier Function | | |
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| | | |Si ^S2 |S3 |S4 |S5 |SH | | |
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| | | Modular Sequencer | | |
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| | | iRi 1R2 1R3 1R4 iR^lRs | | |
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| | | Parker Hannifin Corporation Pneumatic Division Richland, Michigan www.parker.com/pneumatics | | |
| | | A3 | | |
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