Student experiments for contact control with modules on the mounting wall
Objectives
- Basic control elements with contactor
- Basic control circuits with contactor
- Basic control circuits for machines
The learning system consists of handy, robust experimentation modules that can be freely and clearly arranged on a mounting wall in accordance with the circuit diagram. The modules are also coloured in order to allow for better organisation.
A transparent back wall enables participants to observe the industry standard equipment used, in the case that it is not mounted on the front. The module snaps into the mounting wall by way of an elastic catch, so that it won’t fall out when plugged into the connecting lines.
The electric components are wired directly to the corresponding safety connectors using a safety experimentation cable for low voltage.
The control voltage amounts to 230 V AC.
Method
Student experiments based on the assignments in the experiment description.
- Arrangement of the elements
- Wiring
- Function review
Vocational training in electric engineering for handwork and industry
Intermediate level. Previous knowledge: Fundamentals of contactor controlling and instruction in the dangers associated with electrical engineering.
The system can be supplemented with the Learning System E2 Electrical Drives.
Topics
- Functionality of the circuits
- And-or circuits with contactors
- Motor switched on with a power contactor
- Catch of a contactor
- Locking of contactors
- Locking of buttons
- Reverse control
- Contactor control with motor protection relay
- Pick-up delay auxiliary contactor and time relay
- Time-delayed switching
- Star/delta circuit