4 Operating Mode
Digital Positioning System 2000 7
4 Operating Mode
The input signal, i.e. the position setpoint for the actuator output shaft is sent to an
actual/setpoint comparator receiving the actual value from the actuator feedback. Subsequent
signal processing for position control is performed by a microcontrol.
The position control circuit incorporates a 4-quadrant amplifier which allows to drive the
actuator electrically in either direction. This ensures optimum utilization of the actuator's
rotational force. Together with very low current consumption in steady state operation heat
build-up in the actuator also is reduced.
The feedback signal, i.e. the output shaft position signal, is available analogue as acurrent
signal, a voltage signal or as PWM-signal. It can be used as well for further processing as for
indicating actuator position.
Due to the programable microcontrol a lot of functions and capabilities of the Digital
Positioning System 2000 can be determined by parameterization. This offers various options
for the systems setting up and its configuration.
For instance linear output characteristic, range, type and sense of input and output etc. can be
adapted to users requirements.
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