Page 281 - Electronic Mechanic - TP - Volume - 2
P. 281

ELECTRONICS MECHANIC - CITS



           EXERCISE 193&196: Construct  and  control  Automatic

                                              return of a Double Acting Cylinder by
                                              Limit Switch


            Objectives

           At the end of this exercise you shall be able to
           •  select the components to construct and control automatic return of the double acting cylinder by Limit Switch
           •  construct the circuit on trainer board as per the diagram
           •  check the function of the circuit.
           Requirements

           Tools/ Materials

           •   Pneumatic trainer board       - 1 No.           •  5/2 DC double solenoid valve    - 12 No.
           •   Digital multimeter with probes   - 1 No.        •  FRL                             - 1 No.
           •  Regulated DC power                               •  Push button switch              - 1 No.
              supply 24V/2A                 - 1 No.            •  Relay                           - 2 Nos.
           •   Pneumatic Source             - 1 No.            •  Limit Switch                    - as reqd.
           •  FRL                           - 1 No.            •  PU Tube                         - as reqd.
           •   Double Acting Cylinder                  - 1 No.  •  Connecting cables
           Procedure


           TASK 1:  Select the components to construct and control the automatic return of a double acting
                   cylinder
           1   Select the components to construct the circuit using ISO 1219 symbol
           2  Check the DC supply by using multi meter


           TASK 2 & 3:  Construct the circuit and control the automatic return of a double acting cylinder























           A  Pneumatic Connection
           1  Connect the Compressor to the FRL
           2  Set the FRL for 6 bar
           3  Connect the FRL to the Manifold

           4  Connect input port (Port No.1 or P) of the 5/2 Solenoid valve to the Manifold.



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