Page 283 - Electronic Mechanic - TP - Volume - 2
P. 283

ELECTRONICS MECHANIC - CITS



           EXERCISE 197: Throttle a cylinder to adjust forward and

                                      return strokes


            Objectives


           At the end of this exercise you shall be able to
           •  select the components to construct the throttling of a double acting cylinder
           •  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 single solenoid valve    - 1 No.
           •   Digital multimeter with probes   - 1 No.        •  Push button switch              - 1 No.
           •  Regulated DC power                               •  Relay                           - 1 No.
              supply 24V/2A                 - 1 No.            •  Throttle Valve                  - as reqd.
           •   Pneumatic Source             - 1 No.            •  PU Tube                         - as reqd.
           •  FRL                           - 1 No.            •  Connecting cables
           •   Double Acting Cylinder               - 1 No.
           Procedure

           TASK 1:  Select the components to construct and control the speed 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 speed 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.

           5  Connect Output port (Port No.2) of the 5/2 Single Solenoid valve to the Input port of the Throttle Valve.
           6  Connect Output port of the Throttle valve to the Input (Piston Rod end side) port of the Double Acting Cylinder
           7  Connect another Output port (Port No.4) of the 5/2 Single Solenoid valve to the Input (Piston head end side)
              port of the Double Acting Cylinder


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