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The electrical positioner SIPART PS2 and the actuator together form the control system. The servo potentiometer records the current position of the actuator and feeds back the actual value x. The set value and actual value are also displayed on the screen. The specific functions are as follows: · By default, the basic unit comes with a binary input (BIN). These binary inputs can be configured and used independently, for example to limit the control level. ·The positioner SIPART PS2 is equipped with a friction clutch and switchable gears, allowing it to be used in conjunction with various mechanical angular and linear actuators. ·For positioners with a \"fail-safe\" function, they maintain the current position of the actuator in the event of a failure in the auxiliary power supply and/or compressed air supply. It will not operate in SIL mode. ·When using the \"Fault Hold\" function, to maintain the current position after the auxiliary power supply fails and is reactivated, the parameter \"51. FSTY\" must be set to \"FSSP\". ·The control system provides the set value w to the actuator in digital form via a bus. ·The locator acts as a predictive five-point locator; via its output value ±Δy, the integrated valve can be controlled through pulse length modulation. ·These input signals change the pressure in the actuator chamber, and the actuator returns to its original position only when the control error is 0. ·After removing the protective cover, the three buttons and display can be used to perform operations (manual mode) and configurations (structuring, initialization, and parameter assignment). The electrical positioner SIPART PS2, when combined with a pneumatic actuator, is generally used for the continuous control of process valves in the following industries. ·Pulp and paper · Water/wastewater · Pharmaceutical industry · Offshore power plants · Chemical industry · Oil and gas · Energy production · Food and beverages