Preparation: Basic Electronic Parts

The following section contain an introduction to the basic electronic parts used during the practical sessions. Please carefully execute the todos as this knowledge is required for the practical session.

Todo

Assign the correct symbols and descriptions to the following components.

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The DC motor is one of the most important drives of all. It is used in many consumer electronics devices, household appliances, toys and industrial machines. In this task, a control for this type of motor is to be developed.

Todo

Find out how the DC motor and the solenoid work and answer the following questions:

  1. What must be done to change the direction of the motor?

  2. Can the direction of the solenoid be changed?

Program logic can be created by using relays in different designs.

Todo

Sketch the symbols for pushbuttons (Taster), switches (Schalter), make contacts (Schließer), break contacts (Öffner), and changeover contacts (Wechsler). What are these components used for?

Todo

Create a circuit in FluidSIM® with which the DC motor can be switched on and off manually and the running direction can be changed.

Todo

Extend the previously created circuit so that the DC motor is indirectly switched on and off and reversed via relays.

Solenoids provide an electric alternative to pneumatic cyclinders. They can operate fast and are controlled easily.

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Todo

Create a control of a solenoid coil with a pushbutton and a relay in FluidSIM®. To do this, complete the circuit diagram shown below. (The solenoid is represented by the pneumatic circuit.)

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For safety reasons, a two-hand control is often used. In this case, a machine may only start when two buttons are pressed. This is to prevent the machine operator from reaching into the machine with one hand while it is operating.

Todo

Create a circuit for two-hand control of a single-acting cylinder. Test the circuit in the simulation mode of FluidSIM®. Could this function also be implemented with switches?

Todo

Check your options in FluidSim to create time-based actions (e.g., wait for 10s till returning the cylinder again).