Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1
available from your local Rockwell Automation sales office or online at
http://www.ab.com/manuals/gi) describes some important differences
between solid state equipment and hard-wired electromechanical devices.
Because of this difference, and also because of the wide variety of uses for
solid state equipment, all persons responsible for applying this equipment
must satisfy themselves that each intended application of this equipment is
acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, Rockwell Automation, Inc. cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to
use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of Rockwell Automation, Inc. is prohibited.
Throughout this manual, when necessary we use notes to make you aware of
safety considerations.
WARNING
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD
Identifies information about practices or circumstances
that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property
damage, or economic loss.
Identifies information that is critical for successful
application and understanding of the product.
Identifies information about practices or circumstances
that can lead to personal injury or death, property
damage, or economic loss. Attentions help you:
• identify a hazard
• avoid a hazard
• recognize the consequence
Labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that dangerous voltage may
be present.
Labels may be located on or inside the equipment (e.g.,
drive or motor) to alert people that surfaces may be
dangerous temperatures.
Table of Contents
Preface
Pico Controller
Drawing a Circuit with Pico
Who Should Use this Manual. . . . . . . . . . . . . . . . . . . Preface-i
Read this preface to familiarize yourself with the rest of the manual. It
provides information concerning:
• who should use this manual
• the purpose of this manual
• related documentation
• conventions used in this manual
• Rockwell Automation support
Who Should Use this
Manual
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use Pico
controllers.
You should have a basic understanding of electrical circuitry and
familiarity with relay logic. If you do not, obtain the proper training
before using this product.
iPublication 1760-GR001C-EN-P - April 2005
Preface ii
Purpose of This Manual
This manual provides a basic overview of Pico and an introduction to
Pico programming. For a more detailed description of how to install
and use your Pico Controller, refer to publication 1760-UM001, Pico
Controller User Manual.
Related Documentation
The following documents contain additional information concerning
Rockwell Automation products. To obtain a copy, contact your local
Rockwell Automation office or distributor.
ForRead this DocumentDocument Number
A more detailed description of how to install and use your Pico
controller.
In-depth information on grounding and wiring Allen-Bradley
programmable controllers
A description of important differences between solid-state
programmable controller products and hard-wired electromechanical
devices
Pico Controller User Manual1760-UM001
Allen-Bradley Programmable
Controller Grounding and Wiring
Guidelines
Application Considerations for
Solid-State Controls
1770-4.1
SGI-1.1
An article on wire sizes and types for grounding electrical equipmentNational Electrical Code - Published by the National Fire
Protection Association of Boston, MA.
A complete listing of current documentation, including ordering
instructions. Also indicates whether the documents are available on
CD-ROM or in multi-languages.
A glossary of industrial automation terms and abbreviationsAllen-Bradley Industrial Automation
Common Techniques Used
in this Manual
The following conventions are used throughout this manual:
• Bulleted lists such as this one provide information, not
Allen-Bradley Publication IndexSD499
AG-7.1
Glossary
procedural steps.
• Numbered lists provide sequential steps or hierarchical
information.
• Italic type is used for emphasis.
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Preface iii
Rockwell Automation
Support
Rockwell Automation offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors and 260 authorized
Systems Integrators located throughout the United States alone, plus
Rockwell Automation representatives in every major country in the
world.
Local Product Support
Contact your local Rockwell Automation representative for:
• sales and order support
• product technical training
• warranty support
• support service agreements
Technical Product Assistance
If you need to contact Rockwell Automation for technical assistance,
please review the Troubleshooting chapter in the Pico Controller User
Manual first. Then call your local Rockwell Automation representative.
You can also contact Rockwell Automation Technical Support. To
reach our Technical Support, go to the following website to find the
support site for your region.
If you find a problem with this manual, or you have any suggestions
for how this manual could be made more useful to you, please
contact us at the address below:
Rockwell Automation
Control and Information Group
Technical Communication, Dept. A602V
P.O. Box 2086
Milwaukee, WI 53201-2086
or visit our internet page at:
http://www.ab.com/pico or http://www.rockwellautomation.com
Publication 1760-GR001C-EN-P - April 2005
Preface iv
Publication 1760-GR001C-EN-P - April 2005
Safety Information
Pico Controller
ATTENTION
Electrical Shock Hazard
The electrical installation and commissioning work
must only be carried out by suitably qualified
personnel.
Do not work on the device when the power is turned
on.
Observe the relevant safety regulations:
• Turn off the power
• Make sure that the device cannot be powered on
again inadvertently
• Check to make sure that no dangerous voltages
are present before working on the device
Chapter
1
Simply Pico
Clever Switching and Controlling
Pico is a compact, user-friendly and low-cost controller for simple
control applications. Applications range from building and domestic
automation to machine and plant control. Pico has built-in
user-friendly operating elements and an LCD display.
Connect Pico and draw a circuit diagram on the display by pressing
the buttons on the device. Pico works with make contacts, break
contacts, and relays.
Enter a circuit diagram in Pico just like it is sketched on paper. Pico
has basic and advanced functions for relays, time switches and
contactors, among other functions. Make changes to the circuit by
pressing the buttons on the device. Time consuming rewiring is not
necessary.
1Publication 1760-GR001C-EN-P - April 2005
1-2 Pico Controller
Applications Everywhere
• Building and domestic automation, controllers for lighting,
doors, window shutters