Basic System

POWER SUPPLY AND SOFTWARE FOR
ON-OFF, HYSTERESIS, PID, PID-SELF TUNING
CONTROL
TECHNICAL SPECIFICATIONS
• Outputs:
– Out1: ±15 Vdc/0.5 A; stabilized and protected against
short-circuits and overloads
– Out2: 30 Vdc/6 A; rectified and filtered; fuse protection
– Out3: 24 Vac/6 A, 50/60 Hz; fuse protection
• Voltage presence signaling LED
• Terminals for the connection of the power supply to the
modules and processes
• Potentiometer for external set-point regulation in the voltage
range 0-10 Vdc/10 mA
DIMENSIONS: 415x400x110 mm
POWER SUPPLY
Single-phase: 115/230 Vac ±10% – 50/60 Hz
CONTROL SOFTWARE
For each application concerning the industrial processes,
specific digital control software has been carried out which can be implemented with the Plcs.
The main software which can be implemented is:
• ON/OFF control
• Hysteresis control
• PID control
• PID Self-Tuning control
• FUZZY control
TEMPERATURE PROCESS WITH AMPLIFIER FOR
ACTUATOR AND SIGNAL CONDITIONER
FOR THERMOCOUPLE
The possibilities of calculation of the PLCs of the last generations
enable their use also in applications concerning the control of industrial processes.
So the system  represents a necessary tool for the
development of an intense theoretical-practical training program
on the subjects concerning the temperature control with PLC.
TRAINING PROGRAM
The system enables the theoretical analysis
and the experiments on the following main exercises:
• Detection of the characteristic curve of the transducer +
signal conditioner units
• Determination of the linearity of the transducer + signal
conditioner unit
• Determination of the response delay of the transducer -
signal conditioner
• Analysis of the actions: ON/OFF, Hysteretical, Proportional,
Integrative and Derivative carried out by the PLC
• Controller set-up according to the response at the maximum
stability
• Detection of the response of closed-loop processes with
ON/OFF control
• Detection of the response of closed-loop processes with P, P+l, P+D, P+l+D and FUZZY controls
• Detection of the permanent state error of the processes,
according to the used control
• Detection of the transient state behavior of the processes
according to the time constants of the control program
LEVEL AND FLOW PROCESS WITH AMPLIFIER FOR
ACTUATOR AND SIGNAL CONDITIONER
FOR LEVEL AND FLOW TRANSDUCER
TRAINING PROGRAM
The system  enables the theoretical analysis
and the experiments on the following main exercises:
• Detection of the characteristic curve of the transducer +
signal conditioner units
• Determination of the linearity of the transducer + signal
conditioner units
• Determination of the response delay of the transducer -
signal conditioner
• Analysis of the actions: ON/OFF, Hysteretical, Proportional,
Integrative and Derivative carried out by the PLC
• Controller set-up according to the response at the maximum
stability
• Detection of the response of closed-loop processes with
ON/OFF control
• Detection of the response of closed-loop processes with P,
P+l, P+D, P+l+D and FUZZY controls
• Detection of the permanent state error of the processes,
according to the used control
• Detection of the transient state behavior of the processes,
according to the time constants of the control program
PRESSURE PROCESS WITH AMPLIFIER FOR
ACTUATOR ANDSIGNAL CONDITIONER FOR PRESSURE TRANSDUCER
TRAINING PROGRAM
The system  enables the theoretical analysis
and the experiments on the following main exercises:
• Detection of the characteristic curve of the transducer +
signal conditioner units
• Determination of the linearity of the transducer + signal
conditioner unit
• Determination of the response delay of the transducer -
signal conditioner
• Analysis of the actions: ON/OFF, Hysteretical, Proportional,
Integrative and Derivative carried out by the PLC
• Controller set-up according to the response at the maximum
stability
• Detection of the response of closed-loop processes with
ON/OFF control
• Detection of the response of closed-loop processes with P,
P+l, P+D, P+l+D and FUZZY controls
• Detection of the permanent state error of the processes,
according to the used control
• Detection of the transient state behavior of the processes
according to the time constants of the control program
PID DIGITAL REGULATOR FOR PROCESS CONTROL
TRAINING PROGRAM
The equipment includes many teaching applications on the
following main exercises:
• Analysis of the structure of a digital process regulator
• Programming the regulator functions
• Analysis of the regulation parameters such as: proportional,
derivative and integrative coefficient
• Connection of the regulator to a personal computer, sampling
of analog signals and relations with the process regulation
• Algorithms applied to the functional programming of a digital
process control
• Applications with the modules of the Student Trainer:
• Process control:
– Temperature process
– Pressure process
– Flow and level process