AC Position Control System

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AC Position Control System

Order Code: 52031

Introduction 2-phase ac servomotors have been traditionally used for position/ speed control applications especially in light weight, precision instrumentation area in airborne systems. The present unit is designed around a 12V ac servomotor an...

SPECIFICATION

Introduction
2-phase ac servomotors have been traditionally used for position/ speed control applications especially in light weight, precision instrumentation area in airborne systems. The present unit is designed around a 12V ac servomotor and exposes the basic characteristics and dynamics of a position control system. A block diagram of the system is shown in figure below. Besides introducing the basic features like balanced modulation of the error signal, phase reversal around the set point and phase difference between the reference and control phases of the motor, the experiment involves study of the step response of the closed loop system.
Being a mechanical system the response is too slow for a comfortable viewing on a CRO, except on an expensive storage oscilloscope. A microprocessor based waveform capture/ display card in the unit stores the step response in real time and displays the same once steady state is reached.

Features and Specifications

2-phase servomotor 12V/ phase, 50Hz, 10W
Power amplifier for driving
Servo potentiometer type error detector
In-built 10.00V (rms) panel meter
Step response capture/ display card
Detailed literature with typical results included
Complete unit except a measuring CRO

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