Equipment for engineering education
Smart learning Control engineering from basic to advanced
Introduction to the topic Practice-oriented learning Industrial scale for advanced users with RT 010 – RT 060 with RT 451 – RT 455 with RT 590
• complete introductory course for typical controlled systems from the field of • use of smart sensors as industry 4.0 data source • maximum practical relevance: complex experimental plant with separate process control engineering supply unit • mobile trainers with industrial components • compact desktop units, ideally suited to multi-user applications • four control loops in one unit, cascade control • clearly arranged control loops – associated components can be easily • high level of observability of processes based on transparent elements identified visually • fault analysis based on simulated typical faults
USB LAN
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LAN/ WLAN 2 HMI
... integrated PLC with touch screen for the visualisation network capable GUNT software of the latest measured RT 020 Flow control with data acquisition RT 454 Temperature control values, time functions … RT 590 Process control engineering experimental plant
Didactic accompanying material: E-Learn course: basic for basics of control knowledge, videos and RT 010 – RT 060 engineering manuals accessible
RT Fundamental principles of process control engineering online Software simulation 1.2 Control engineering terminology Key process control terminology is described here using the example of level control.
The control loop consists of: RT Fundamental principles of process control engineering of controlled systems • Controlled system Controlled systems are any systems, installa- 4 M tions or equipment whose behaviour is to be
1 managed by closed loop control. x nd In this example, the tank (1). Tg Tt • Measuring element x up to 2 order p sd Measuring elements are all kinds of sensors w + ------i 2 2 that detect the process values in the controlled y w K y 2 x0 system. x s LC w – ----s--d- 3 2 xd In this example, a level sensor (2). Tt Pos. Name • Controller 1 Tank The controller (3) is the component that per- Tt 2 Level sensor forms the actual control. It triggers actuators to carry out actions. 3 Controller • Actuator 4 Control valve t Actuators are components that influence the y Fig. 1.3 Level control components process on behalf of the controller. T In this example, a control valve with drive (4) at the tank inlet. • Control system t t e a t The control system consists of the controller Fig. 3.14 Time response for two point controller and the comparing element.
The setpoint of the controller is given by the duty ratio t = ------e------(3.6) te + ta Remote learning These two characteristic variables for the two point controller depend on the set hysteresis on the one hand and on the parameters of the con- 1 Introduction 6 trolled system, Ks, Tt and Tg, on the other. V 1.8 09 / 2020 EN The amplitude x0 of the switching oscillation is approximately calculated as
xsd Ks y Tt x0 ------+ ------ ------(3. ) 2 2 Tg
3 Controllers and control types 34 V 1.8 09 / 2020 EN
Professional Our quality management Hanskampring 15 -17 +49 (0) 40 67 08 54 - 0 training – made system has been certified G.U.N.T. 22885 Barsbuettel [email protected] in Germany since 1998. Gerätebau GmbH Germany www.gunt.de