Model Type (RACK BASE)

• Table Top Model: Electronic desk with ironically designed ABS Molded enclosure with slick looking replaceable experiment panel in central slot.

• Analog I/O channel with potentiometer for AI simulation

• Connection through sturdy Patch cords & 4mm Banana sockets  

• Include Students workbook & Instructor's Guide 

• Aluminum profile sturdy Flat panel system carrying various high voltage components housed in modular plastic enclosures to minimize shock possibility

Facilities of trainer

• Labs to be conducted as analog and digital PID

• Facility to monitor behavior of the controller output (Un) & process variable (MV) either on PC screen or on CRO. Settable time constants.

• P4/XP or latest version window based ID controller(DDC) software package with P, PI &PID control, Ratio & cascade control, three operating modes, Online graph drawing & data acquisition modes (SCADA). 

• Can learn about different processes using simulated building blocks as well as real life processes using replaceable experiment panels & built in square / triangle / sin function generator as disturbance.

• Graph printing facility for laboratory journal entries.

• Aesthetically designed injection molded electronic desk (master unit) carrying useful experiment resources like Power supplies, DPMs, Computer Interface, Analog PID controller with central slot to hold various replaceable experiment panels / processes.

Basic Resources on Top board

• Built in power supply: DC supply +12V,500mA., phase sine reference for cosine firing 30Vpp max.,17Vdc, 500mA unregulated for driving pulse X’mer, Variable DC power supply: 7 to 14V/3A

• Display: DPM - 2Nos.

• For Temp. up to 1000C & intensity in Lux (2000), For speed 2000 rpm & voltage up to 20V.

• Analog Meter - 2Nos., Centre zero for display of process error (+9V), For MV/SP (0-2.5V)

• Operating voltage: Switch selectable 220-240Vac, ±10%, 50Hz, 75VA

• PC (WIN7/8/10) based PID controller special features

• Online monitoring / Data acquisition / PID Software: on Installable

• (CD) works under XP, WIN7/8/10 PC with parallel port / USB needed.

Operating modes: 

• Simulator Mode-Tests data already stored in files (*.txt) & Drawing graph for all P, PI, PD&PID modes. b) Process Monitoring Mode: Drawing graphs of analog data presented at CH 0 &C of Computer Interface. Cursors for X &Y axis for measurement &online graphs savings for reproduction

Specific parameters (PID controller)

• PID controller with parameters like Integral Time Ti (0.01-64000)

• Sampling Time Ts (0.1- 99.9), Derivative Time Td (0.1-99.9)

• Proportional Band Pb (1-999), Derivative Gain Kd (1-999)

• Set Value Rn (0- 99.9), output Upper Limit Uh (0-99.9), output Lower Limit Ul (0- 99.9).

• Facility to set units for output viz. Percentage (%), oC, RPM, Voltage(V), mm, LPH, kg/cm2, si/cm, degree.

• Supports experiments with advance process control scheme viz.; Ratio, Cascade, feed forward with user selectable Aux PID, Station & programmable FF transfer function calculator, selective & split control strategies, Multi DPM Screen.

Computer Interface Adapter 

• Optoisolated Adaptor to prevent damage to PC parallel port (25 pin LPT) due to wrong connections. Interfaces through 25 pin M to F cable 1mtr Length. PC/WINXP/7/8/10 not in scope of supply.

• 4 ADC channels: 0 to 2.5V full scale.,1 DAC channel: O/P 2.5 V FS., V to I Function block: Input: 0-2.5Vdc, O/p: 0-20 or 4-20mA, in 100E load Max

• USB IO module to interface 25 pin D connector on CIA panel to USB PC port enclosed in 25 Pin D shell using Type A to mini B cable.

• V to PWM function block: I/P -0-2.5V, O/P-1KHz PWM O/P ±9V.

Analog PID (APID) controller with built in low freq. function generator

• Controller selection P, PI, PD, PID with slide switch

• Parameter settings: Integral Time Ti (0.5-25Sec),

• Derivative Time Td (0-2Sec) : Proportional Band Pb (5- 200%),

• Set point (-9V- +9V)

• Operating modes: Fast (X 100/10mSec) for oscilloscope, Slow (X 0.1/1Sec) for PC interface.

• 2 No. Level shifter converting process O/p (+9V) to 0-2.5V for PC interface & Actuator panel

• Test points for Process Error, Set Point (Rn), Measured Value (Cn), Controller output (Un).

• O/p waveform selectable sine, triangular & square.

• O/p freq. range from 0.016Hz to 166Hz, 4 steps & fine control pot.

• Variable amplitude control 0 to +9V.

Process Simulator Panel

• Functional blocks for Lag (3 No.), Integrator (3 No.), Transport Lag (1 No.), Summer (2 No.), Gain (1 No.), Inverter (2 No.) for constructing simulated Type 0,1,2,3 & 1st,2nd,3rd Order processes to work under PID.

• Experiments with Lead / Lag / Lead - Lag compensators to control behavior of matching processes using above function blocks.

• Open loop & close loop response of processes under different P, PI, PID - Analog or Digital controllers. Experimental verification of PID Controller settings ( Pb , Ti, Td)

• Auto Tuning explained using Ziegler Nicolas I & II.

• Fast (10mS) & slow (1sec) mode selection for all processes to observe response on either CRO or PC using CIA.

• Drawing Bode plot & Nyquest plots, transfer function determination. 

• Advance process control scheme viz.; Ratio, Cascade, feed forward.

• Level shifters (2No) +9V to 0-2.5V & 0-2.5V to +9V to match voltage levels of PC (2.5V) & op-amps (+9V).