3-Position Valve Actuator

This example shows a use of a double-acting valve actuator. All three actuators are driven by a pulse signal in such a way that the signal is first applied to ports A and then, after 1.5 s delay, to ports B. Actuator A is set to start from the "Extended positive" position, while actuator C starts from the "Extended negative" position. Therefore, actuators A and C statrt moving toward neutral position at the beginning of simulation and reach this position before the signal is applied. Actuator B remains still all this time, since it is set to start from neutral position. For simplicity sake, the actuators strokes, switch-on, and switch-off times are set to different values.

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