Electronic control of electrical machines

The electronic motor speed regulation training devices presented in this catalogue are the result of having converted the corresponding industrial regulators into training devices, reproducing their construction and operating principles while providing major educational and functional advantages.

Basic content that can be worked on using this equipment:

Block diagram representation of control systems.
Speed control in both rotation directions.
Four-quadrant operation.
Operation at constant torque and power.
Current and speed regulation, types of feedback and correctors.
Speed regulation, P and PI correctors.
Torque and speed regulation. Feedback loops and correctors.
Torque regulation: detection of rotor position and set point generation.
Dissipative braking: crowbar circuit.
Analytic corrector tuning in accordance with the symmetric optimum criterion.
Adjustment and tuning techniques.
Asynchronous motor speed variation. Voltage/frequency ratio.
Failure diagnosis and repair.

Functions

Panel support, for use in either vertical position (frame) or table-mounted.
Wireless equipment configuration.
Power and control circuit symbols printed according to the IEC (International Electronic Commission) European standards.
Test points in 2 mm sockets for control signal measurement.
External set points may be worked with, to enable actuation from an automaton or other control element.
Motor operating conditions (voltage, current, speed, etc.) can be viewed on a display on the panel, with no need for additional instruments.
One single supply for all the equipment.

Back-up resources

This equipment includes a set of back-up elements to aid the trainer, e.g.:

User Manual, containing the instructions for startup and operation of the equipment, its technical characteristics and detailed information on the failure repair system.
Practical Manual, describing goals, teaching sequence and solutions for each of the practical activities.
Theory Manual.

Safety

Both the control panels and the electrical machines have safety terminals at voltage points exceeding 30 V, in compliance with the European Low Voltage Directive.

Failures

The training devices enable students to develop failure diagnosis and repair skills: they can analyse and diagnose the failures and repair them virtually.

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