c. Operation of 3 Position Actuator
In order to operate the 3 position actuator, can be benefited from the 3/2 solenoid valve. (Figure 10)
a) Mounting: Fortriple 3/2 solenoid valve; the valve with number 1 should be connected to A port, the valve with number 2 to B port
and the valve with number 3 to C port.
b) Operating:
1) Pressure air is given to air input port.
2) The coil with number 1 is powered. In this way, the actuator turns 90° and switches to fully open position.
3) The coil with number 3 is powered and the power of coil with number 1 is shut off. In this way actuator is half closed. Half closed
position can be regulated between 30-60°.
4) The coil with number 2 is powered and the power of coil with number 3 is shut off. In this way actuator is fully closed.
Air Input
Setting Mechanism
2
B
3
C
1
A
Fig 10. 3 position actuator
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