Electrical Control (Automation Studio), Notas de estudo de Automação

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Electrical Control

Workshop User’s Guide

i

• Introduction....................................................................................................................... Table of Contents
  • About the Electrical Control workshop ....................................................................
• 1 Building a First Electrical Control circuit ...........................................................
  • 1.1 Inserting Components ....................................................................................
  • 1.2 Inserting Links between Components ..........................................................
  • 1.3 Saving the Project........................................................................................
  • 1.4 Electrical Control circuit Simulation ...........................................................
• 2 Component Properties .........................................................................................
  • 2.1 Electrical Control workshop List of Components........................................
  • 2.2 Definition of Properties for Electrical Control Components .......................
• 3 Electrical Control Exercises ................................................................................
  • 3.1 Exercise 1 - Circuit with Coils.....................................................................
    • Motor ........................................................................................................... 3.2 Exercise 2 - Jog Command Control Circuit for a Single-phase
  • 3.3 Exercise 3 - Stop and go Control Circuit for Single-phase Motors..............
• 4 Multi-Workshop Exercises ..................................................................................
  • 4.1 Exercise 1 - Simple Electropneumatic Circuit .............................................
  • 4.2 Exercise 2 - Control Circuit of a Drill Press ................................................
  • 4.3 Exercise 3 - Control Circuit of a Metering System......................................
  • 4.4 Exercise 4 - Control Circuit of a Stamping System .....................................
• A. Technical Specifications.......................................................................................
  • A.1 Lines ............................................................................................................
  • A.2 Power Sources .............................................................................................
  • A.3 Output Components .....................................................................................
  • A.4 Contacts .......................................................................................................

Introduction

This Electrical Control workshop User's Guide provides the information required to install and use this workshop with the Automation Studio Core System. This includes technical specifications for components, procedures for defining properties, the building and simulation of a circuit and examples of Electrical Control applications.

Automation Studio is a modular simulation software package composed of a Core System to which various simulation modules can be plugged in.

Each module, called a workshop, is a library from which you can draw components to create different types of circuits - hydraulic, pneumatic, digital electronic etc. either alone or combined together.

The Core System handles the following functions: editing, simulation, file and diagram management, printing and display.

Electrical Control Workshop User's Guide

About the Electrical Control

workshop

The Electrical Control workshop is an optional module of the Automation Studio application. This workshop allows you to create Electrical Controls or add Electrical Control components to circuits you designed using other workshops (Pneumatic, Hydraulic, Digital Electronics or other workshops).

The Electrical Control library contains components classified in different categories:

The symbols used comply with two standards:

• American symbols;
• European symbols.

When this workshop is installed, both symbol libraries are added to the library. They are identified as Electrical Control (US) and Electrical Control (Europe).

Appendix A on page 67 contains the technical specifications of all the components included with the Electrical Control workshop.

Electrical Control Workshop User's Guide

Description of the circuit to build

L1 N

Control circuit

Functional portion of circuit L1^ N

L1C N

BP-

BP-

B

B

L

Led

MOT

B

This circuit allows you to control a single-phase motor. When you activate push button BP-1, it closes toggle switch BP-1 that in turn activates coil B1. Two NO contacts are associated to this coil. The first contact closes the supply circuit of single-phase motor MOT1; the second contact closes the circuit with the LED that indicates the status of the motor.

List of components

Qty Component Identifier Tagname 1 NO push button BP- 1 NO toggle switch BP- 1 Coil B 2 NO Contact B 1 Indicator light (LED type) L 1 Single-phase motor (Power: 500 W, Rotation speed: 1800 turns/min.)

MOT

Building a First Electrical Control Circuit

Qty Component Identifier Tagname 2 L1 power supply (Voltage: 24 V)

L1C, L1P

2 Neutral N

File ELEC00.PRO containing this exercise is available in Directory EXERC of this application.

1.1 Inserting Components

Follow these steps to construct this circuit:

1. Start the software.
2. Create a new project.
3. Create a new diagram.
4. Maximize the diagram window.

Power Supply - L1C

1. Open the library.
2. From the library’s toolbar, click on the Electrical Control (US) or (Europe) workshop button.

or

Double-click on the Electrical Control (US) or Electrical Control (Europe) workshop labels.

3. Click on the Power Sources category and on the Power Supply L1.

The Power Supply L1 appears at the bottom of the library.

Building a First Electrical Control Circuit

5. Click on the Catalog tab.
6. In the Identifier field, type in L1C.
7. Click on OK.

Power Supply – L1P

1. Select the power supply L1.
2. Choose the Copy command, then choose the Paste command from the Edit menu. or

Click on the Copy, then the Paste buttons on the Edit toolbar. or Type CTRL+R to re-insert the last component. A second power supply appears.

3. Display its dialog box and type L1P in the Item Identifier field of the Catalog tab.
4. Click on OK.

Pushbutton – BP-

1. From the Switches category, select and insert the Pushbutton NO..

Figure 1-2 : NO push button US symbol

2. Open its Properties dialog box.
3. In the Tagname field of the Simulation tab, type in BP-1.
4. Click on OK.

NO Toggle Switch – BP - 1

1. From the Switches category, select and insert the Toggle Switch NO.1.

Electrical Control Workshop User's Guide

Figure 1-3 : NO toggle switch US symbol

2. Open its Properties dialog box
3. In the Tagname field of the Simulation tab, type in BP-. or

Select BP-1 from the dropdown list.

4. Click on OK.

Two components that have the same tagname will have the same behavior. If one of them changes state, the other will change state too. See chapter 2 Component Properties on page 19 for more information.

NO Contact – B

1. In the Contacts category, select and insert Contact NO.

Figure.1-4 : NO contact US symbol

2. Open its Properties dialog box.
3. In the Tagname field of the Simulation tab, type in B1.
4. Click on OK.

Duplicating Contact – B

The Duplicate command allows you to copy an element without having to use the Clipboard.

1. Select previously inserted contact B1 by placing the mouse pointer on it and clicking on the left mouse button.
2. Choose the Duplicate command from the Edit menu.
3. Insert the duplicated contact by clicking on the diagram..
4. Select the newly inserted B1 contact.

Electrical Control Workshop User's Guide

5. Click and release the left mouse button. The link is now established-B1.
6. Repeat steps 2 to 4 for each of the remaining connections.
7. To stop linking components, click the right button of the mouse.

The mouse pointer reverts to its original shape.

Verify Connections

At all times, you can verify the links to see if the connections are made correctly.

For any given diagram, the Verify Connections command from the Tools menu will give you the number of free connections for lines and components.

If components are not properly connected, they will be displayed with a different color from the others, allowing you to easily identify them.

(For more details, see section Inserting Links in the Core System User’s Guide .)

1.3 Saving the Project

1. Choose the Save command from the File menu. The first time you save a project, the Save as dialog box appears.

Building a First Electrical Control Circuit

Figure 1-5 : Save As dialog box

2. Select the drive and directory you want the project to be saved in by choosing them in the Drives and Directories fields. The path you choose is displayed above the lists.
3. In the File Name field, type the name of the project in front of the default .PRO extension. Automation Studio generates files with the .PRO extension.
4. Click on OK.

The complete path and the name of the file identify the project.

Building a First Electrical Control Circuit

1.4.2 User Modifications

When simulating an Electrical Control circuit, you may modify the status of a component by activating it with the mouse.

You can activate the following Electrical Control components:

• NO and NC toggle switches;
• NO and NC push buttons.

To activate these components when in the Simulation mode:

1. Place the pointer on the component.

The pointer takes the shape of a hand. The hand indicates that you may intervene during simulation.

Figure 1-6 : Example demonstrating the position of the pointer when activating a push button

2. Click on the component as indicated in part 1 of the above figure. The Simulation mode will allow the component to respond to the cursor action as indicated in part 2 of the above figure. Depending on which component is activated, you may have to hold down the mouse button on the command if you wish to maintain the status of the component.
3. Release the mouse button and the component will regain its initial status as in part 1.

Electrical Control Workshop User's Guide

Description of the Control Portion

When push button BP-1 is activated, toggle switch BP-1 closes and coil B1 is activated. When coil B1 is activated, it closes NO contact B1 that supplies indicator light L1 that then lights up.

Description of the Functional Portion

When push button BP-1 of the control portion of the circuit is activated, toggle switch BP-1 closes and coil B1 is activated. When coil B1 is activated, it closes both NO contact B1, the one in the control portion and the one in the functional portion. Since contact B1 of the functional portion is closed, the single-phase motor is supplied by L1P and starts running.

1.4.3 Display Colors of Components and Links

The color changes that components and links undergo during simulation will allow you to identify changes in their status, and animate the simulation.

To modify the colors or the configuration parameters of the software:

1. Choose the Configuration command from the File menu. The Configuration dialog box appears.
2. Choose the Electrical Control (US) tab. The Electrical Control (US) tab from the Configuration dialog box appears.