Page 270 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

3 Connect the output of the FRL to the input of the manifold. This manifold distributes the compressed air to
various components in your pneumatic system.
4 Connect the input port (P) of the 3/2 Solenoid valve to the manifold. This valve controls the flow of compressed
air to the next stage.

5 Connect the output port of the 3/2 Solenoid valve to the Single Acting Cylinder. This will control the air supply
to the cylinder and determine its movement.
6 Instructor should check the connections properly

B Electric Connection
1 Connect one terminal of normally open (NO) contact (contact no.3) of the push button switch to the positive
side (24V) of the power supply.
2 Connect the other terminal of NO contact (contact no.4) of the push button switch to the A1 terminal of the
relay coil. This is typically the first coil input..
3 Connect the A2 terminal of the relay coil to the 0V (ground) of the power supply.
4 Connect one terminal of NO contact (contact no.3) of the relay to the positive side (24V) of the power supply.

5 Connect the other terminal of NO contact (contact no.4) of the relay to the solenoid coil. This is typically one
of the terminals of the solenoid valve that controls the pneumatic actuator.
6 Connect the other terminal of the solenoid coil to the 0V (ground) of the power supply.
7 Ensure that all connections are secure and correct before proceeding.

8 Press and release the push button switch to serve as a manual control mechanism for the single- acting
cylinder actuator

When the push button switch is pressed, it completes the circuit, energizing the relay coil,
which in turn activates the solenoid valve connected to the single-acting cylinder. This allows
compressed air to flow into the cylinder, causing it to extend or retract, depending on its
design. Releasing the push button switch interrupts the circuit, de-energizing the relay coil
and stopping the flow of compressed air to the cylinder, thus halting its movement.

9 Confirm with the instructor that the system is operating as expected and all connections are correct.

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CITS : E & H - Electronics Mechanic - Exercise 189