[92] Circuit diagram: 2/2-way valve as final control element
In its initial position,
the cylinder is advanced. If the 2/2- way valve 0V1 is actuated,
the entire volumetric flow passes to the tank and piston rod of
the cylinder is reset by the external load m. If 0V1 is not
actuated, the system pressure set on the pressure limiter 0V2
builds up and the piston rod advances.
In the initial position, the pump operates against the preset system pressure, which has an unfavorable effect on the power balance of the circuit shown.