System
Thanks to the wide range of control options such as lift speed, direction of travel and floor arrival/departure, extended floor requests can also be processed and continuous (analogue) control with acceleration profiles can be included in the training, taking into account different car loads. Extended control systems with several lifts possible.
PLC additionally required.
The trainee should learn to optimise a PLC program for an application in a real setup.
Learning objectives
- Thanks to the wide range of control options such as lift speed, direction of travel and floor arrival/departure, extended floor requests can also be processed.
- Continuous (analogue) control with acceleration profiles taking into account different car loads is discussed.
- Extended control systems with several lifts are possible.
Function
- Fully functional model of a lift with four floors.
- Floor detection and visual display of the direction of travel
- Motorised car doors
- Stop function for stopping at the desired floor
- Up/down buttons on each floor
- Simulation of the lift car load with different weights.
- Front panel handset for testing and troubleshooting
- Integrated control of the servomotors
- Interface for most common PLCs
- Analogue inputs and outputs available
Method
The device is designed as an experiment for pupils and students. Practical tasks challenge the learner to solve the control or system problem with his programme and by means of mechanical settings.
Target group
Vocational training in industry and students specialising in automation technology. The course offers experiments at an intermediate level for vocational schools and bachelor's programmes.
Previous knowledge
- Theoretical fundamentals of PLC Programming.
- Understanding of functional technical contexts
Topics
- Basics of logic
- Fundamentals of PLC Programming
- Switchable errors
- Development in ladder logic
- Simple and advanced sequential control
- Operating a PLC
- Optimisation of the program on the real system
- Testing the function.
