Control System Lab

Stepper Motor With Up Interface

• TTL circuit for single stepping and free run mode with frequency generator <10-100 Hz 
• Wobble mode 
• Direction selector 
• LED indicators for phase sequence observation 
• 12V, 1A/phase, 2.0 kg/cm torque, 1.8 degree stepper motor, uP interface 
• Calibrated dial for position monitoring 
• Position pick up by servo potentiometer 
• IC regulated power supply for complete circuitry 
• Supporting literature with patch cords, 220V mains operated. 

Synchro Transmitter/receiver

• Study of Synchro Transmitter/Receiver 
• Two dials for input/output angular displacement 
• Knob with large pointers on transmitter and receiver 
• Sockets for rotor (R1, R2) and stator (S1, S2, S3) on panel 
• Built in isolated power supply for both 
• Attenuated output on sockets for view of signal observation on CRO 
• Supporting literature with patch cords 
• 220V mains operated 

Speed Torque Characteristics Of Ac Servo Motor

• Two phase AC Servo Motor (2500 RPM) 
• Electronic speed sensor with RPM display upon panel meter 
• Ammeter for load current 
• DC Motor for loading 
• Torque calculation from back emf 
• Speed controller for motor 
• 220 V ac mains operation 
• Isolated supply for motor 
• Supporting literature with patch cords, 220V mains operated 

Speed Torque Characteristics Of Dc Servo Motor

• Shunt wound DC Servomotor 
• Separate field and armature DC supplies 
• Two analog meters to take reading of volt and current for field and armature 
• Analog RPM meter 
• Belt and pulley loading for torque measurement 
• Two spring balance 
• 220 V ac line operation 
• Detailed instruction manual with patch cords, 220V mains operated 

Potentiometric Error Detector

• To study of potentiometer as error detector element 
• Two Full 360 degree rotation servo- potentiometers with 1 degree resolution 
• IC regulated DC excitation for both potentiometers 
• AC excitation at 400 Hz approx. 
• Built in demodulator circuit 
• 3.5 digit DVM for carrying measurements 
• IC regulated power supply for rest of the circuitry 
• Complete with instruction manual and patch cords, 220V mains operated. 

Magnetic Amplifier Control System

• To study input-output characteristic of a magnetic amplifier 
• Two saturable reactors in one frame 
• 2 Rectifiers 
• Fixed Resistive load 
• DC bias voltage 
• One potentiometer 
• Two digital meters 
• Supporting literature with patch cords, 220V mains operated 

Linear System Simulator

• Study of simulated linear systems 
• Simulated blocks configurable as first, second and third order systems 
• Disturbance adding facility at input and output 
• Signal Sources 
• Square wave : 20-80 Hz, 0-2 Vpp continuously variable 
• Triangular wave : Similar to square wave both in frequency and amplitude 
• Integrated triangle wave fixed amplitude 
• Built in IC regulated power supply 
• Complete with detailed instruction manual and patch cords, 220V mains operated.

Dc Motor Position Controller

Study of DC position Servo 
Position control of a 12 volt, 1 Amp DC geared PM motor (50/60 RPM) 
Calibrated dials with 1 degree resolution for reference and output position 
Two 360 degree Servo-potentiometers 
Built in step signal 
Built in waveform capture/display card for study dynamics 
3.5 digit digital voltmeter 
IC regulated DC power supplies for circuitry 
Supporting literature for experiments with patch cords, 220V mains operated 

Compensation Design Network System

Study of lag, lead and lag-lead 
Second order simulated systems 
Study of All pass filter 
Lag, lead and lag - lead compensating circuits 
Gain compensating amplifier with calibrated dial 
Signal sources 
Sine wave : Continuously variable in two decades (10-1000 Hz) with 0-8 Vpp amplitude 
Digital phase angle meter 0-180 degree (optional) 
Complete with patch cords and detailed literature, 220V mains operated 

Advanced Pid Controller Based On Microcontroller With Temperature Control

89C51/8031 based PID Demonstrator with sensor & PT-100 
Heating source with PWM controlled 
Water tank with stirrer 
Temperature controller with facility to set Kp, Ki, Kd 
14 bit A/D for monitoring 
12 bit D/A for control 
On line acquiring & display of graph 
In-built Power Supply 
RS-232C interface to be connected to computer 
User’s Manual 

Light Intensity Control System

Feedback control of light intensity 
Study of inherent non-linearties- sensor, lamps 
PI control 
Dynamic response display 
Experiments & specifications : 
Characterization of light panel and light sensor blocks 
Study of a practical single loop feedback control system which includes : 
- Disturbance study - Error monitoring 
Performance improvement through P-I control 
Evaluation of dynamic behaviour 
Seven lamps 6V/300mA 
5 Hz square wave and triangular wave for dynamic response study 
Switch selectable PI-Controller 
Built-in 3.5 digit DVM 
Built-in IC regulated power supplies 
220 +/- 10%, 50 Hz mains operation 
Detailed literature and patch cords included 

Dc Speed Control System

Study of speed control of DC motor in open and close loops 
Speed control of 12V, 4W, permanent magnet DC motor 
Speed range upto 3000 RPM (typical) 
Electronic techo generator for feedback 
Non-contact eddy current break for load 
4 digit RPM counter 
3.5 digit digital voltmeter 
Built in regulated power supply 
Detailed instruction manual with patch cords, 220V mains operated 

Digital Control System

Digital Controller implementation on uP-kit 
Simple Op-amp based analog plant 
CRO display of response 
Design and test new algorithms 
Experiments : 
Indentification of the controlled process 
Study of sampling period variation 
Designing P,PI,PD and PID controllers 
Advanced algorithms implementation 
Features and specifications : 
Second order simulated process (analog process) 
Built-in D/A and A/D circuits (8-bit) 
8085 based uP kit as digital controller with user software in 8K EPROM 
16-bit arithmetic for algorithmic calculations 
16 built-in levels of P, I and D gains each. Complete flexibility for the user to develop own software 
Square wave test input (internal) 
IC regulated internal built in power supplies 
220V +/- 10%, 50Hz mains operation 
Detailed literature and patch chords included 
Essential accessory - a CRO

Temperature System Simulator

Fast compact oven upto 90 degree C 
Variety of control actions 
Digital temperature readout 
Solid state temperature sensor 
Experiments: 
Identification of the oven parameters 
Study of ON-OFF temperature control (with adjustable relay characteristics) 
Study of P, PI, PD and PID controls having adjustable coefficients 
Features and specifications: 
Temperature controller with facilities for P,I,D and relay control blocks 
Operating temperature : Ambient to 90 degree C 
Separate control for P,I,D channel gains 
Two settings for relay hysteresis 
Fast 25W oven fitted with IC temperature sensor 
Digital display of set and measured temperature on a 3.5 digit built in DVM 
Buffered output for recorder 
IC regulation in controller circuit power supplies 
220V +/- 10%, 50 Hz main operation 
Supporting literature and patch cords included 
No accessories required

Speed Torque Characteristics Of Dc Servo Motor

• Shunt wound DC Servomotor 
• Separate field and armature DC supplies 
• Two analog meters to take reading of volt and current for field and armature 
• Analog RPM meter 
• Belt and pulley loading for torque measurement 
• Two spring balance 
• 220 V ac line operation 
• Detailed instruction manual with patch cords, 220V mains operated 

Ac Motor Position Controller

Study of AC position servo 
Two precision servo-potentiometers full 360 degree rotation 
Calibrated dials for command and output position with 1 degree resolution 
Motor controller circuit (thyristorized) 
110 volt two phase AC servo motor (60 RPM synchronous) 
Waveform capture/display card 
220 Vac mains operation 
Isolated supplies for motor, control circuit and card 
Supporting literature with patch cords 
220V mains operated 

Dc Speed Control System

Study of speed control of DC motor in open and close loops 
Speed control of 12V, 4W, permanent magnet DC motor 
Speed range upto 3000 RPM (typical) 
Electronic techogenerator for feedback 
Non-contact eddy current break for load 
4 digit RPM counter 
3.5 digit digital voltmeter 
Built in regulated power supply 
Detailed instruction manual with patch cords, 220V mains operated 

Synchro Transmitter/receiver

• Study of Synchro Transmitter/Receiver 
• Two dials for input/output angular displacement 
• Knob with large pointers on transmitter and receiver 
• Sockets for rotor (R1, R2) and stator (S1, S2, S3) on panel 
• Built in isolated power supply for both 
• Attenuated output on sockets for view of signal observation on CRO 
• Supporting literature with patch cords 
• 220V mains operated 

Magnetic Amplifier Control System

• To study input-output characteristic of a magnetic amplifier 
• Two saturable reactors in one frame 
• 2 Rectifiers 
• Fixed Resistive load 
• DC bias voltage 
• One potentiometer 
• Two analog meters 
• Supporting literature with patch cords, 220V mains operated

Speed Torque Characteristics Of Dc Servo Motor

• Shunt wound DC Servomotor 
• Separate field and armature DC supplies 
• Two analog meters to take reading of volt and current for field and armature 
• Analog RPM meter 
• Belt and pulley loading for torque measurement 
• Two spring balance 
• 220 V ac line operation 
• Detailed instruction manual with patch cords, 220V mains operated 

Servo Stabilizer System

To study servo controlled AC voltage stabilizer as position control system 
Dimmer (1 KVA) with Servomotor Output Sense transformer 
Loads (heating elements) 
Loop Process with variable gain 
AC Voltmeter and Ammeter 
Waveform capture card (optional) 
Supporting literature with patch cords, 220V mains operated. 

Digital Control System

Digital Controller implementation on uP-kit 
Simple Op-amp based analog plant 
CRO display of response 
Design and test new algorithms 
Experiments : 
Indentification of the controlled process 
Study of sampling period variation 
Designing P,PI,PD and PID controllers 
Advanced algorithms implementation 
Features and specifications : 
Second order simulated process (analog process) 
Built-in D/A and A/D circuits (8-bit) 
8085 based uP kit as digital controller with user software in 8K EPROM 
16-bit arithmetic for algorithmic calculations 
16 built-in levels of P, I and D gains each. Complete flexibility for the user to develop own software 
Square wave test input (internal) 
IC regulated internal built in power supplies 
220V +/- 10%, 50Hz mains operation 
Detailed literature and patch chords included 
Essential accessory - a CRO

Relay Control System

System with electronic relay 
Adjustable hysterisis and dead zone 
Display phase plane diagram on CRO 
Stability study by describing function method 
Experiments : 
Study of the relay characteristics and display of the same on CRO for different values of hysteresis and dead zones. Hysteresis and dead zone of the built-in 3-position electronic relay are adjustable in the range 0-600mV and 0-500mV respectively. 
The transfer characteristics and output of the relay under various settings provide insight into the relay performance 
tudy of the effect of hysteresis on system stability. Sustained oscillations may occur in the system under various conditions, especially where hysteresis is present. 
The amplitude and frequency of such oscillations are predicted from a graphical analysis and then verified experimentally on the unit 
hase plane analysis of relay control system for various values of Hysterisis and Dead Zones. The nature of the singular point in the phase plane diagram has importance in the stability studies of nonlinear systems. 
hase plane analysis of relay control system for various values of Hysterisis and Dead Zones. The nature of the singular point in the phase plane diagram has importance in the stability studies of nonlinear systems. 
Here the phase trajectory is viewed on the CRO and the effect of changing hysteresis and dead zone observed 
Features and Specifications : 
Simulated electronic relay using high speed IC’s 
Simulated 2nd order linear plant. Facility for displaying x and x signals 
Dead zone varable from 0-600mV app 
Hysteresis variable from 0-500mV app. 
Built in signal sources - sine and square Amplitude : 0-1V (min.) variable Frequency : 10, 20, 40, 80, 100, 200, 400, 800 & 1000 Hz ic regualted internal power supplies 
ic regualted internal power supplies 
220V +/- 10%, 50 Hz main operation