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Lecturer Ph.D Truong Dinh Chau, Department of Automatic Control, Faculty of Electrical – Electronics Engineering, HCM. City University of Technology tdchau@hcmut.edu.vn 091. 543-74-40 Industry Automation Outcome 4 Logical Actuators • Solenoids, valves and cylinders • Hydraulics and pneumatics • Other actuators Topics: • Be aware of various actuators available. Objectives: Logical Actuators Solenoids current off current on Actuators drive a system solenoid solenoid power inexhaust out power in exhaust out Solenoid Valves A Solenoid Controlled 5 Ported, 4 Way 2 Position Valve Two way, two position normally closed normally open normally closed normally open Three way, two position Four way, two position Flow control valve Shuttle valve Schematic Valve Symbols Hydraulic Cylinders Fluid pumped in at pressure ’P’ Fluid flows out at low pressure F Fluid pumped in at pressure ’P’ Fluid flows out at low pressure F advancing retracting single acting spring return cylinder double acting cylinder Flow control valve Shuttle valve Receiver tank Pump Dryer Filter Pressure regulator Hydraulics Other Types Heaters Lights Sirens/Horns Motors etc .