Omron SYSMAC C20K User manual

Cat. No. W147-E1-02B

K-type Programmable Controllers

Installation Guide

Revised August 1993

C20P

C60K

C20P

Notice:

OMRON products are manufactured for use according to proper procedures by a qualified operator

and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed

the information provided with them. Failure to head precautions can result in injury to people or dam-

age to the product.

DANGER! Indicates information that, if not heeded, is likely to result in loss of life or serious

injury.

WARNING Indicates information that, if not heeded, could possibly result in loss of life or

serious injury.

Caution Indicates information that, if not heeded, could result in relative serious or minor

injury, damage to the product, or faulty operation.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers

to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, means

“word” and is abbreviated “Wd” in documentation.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of

information.

Indicates information of particular interest for efficient and convenient opera-

tion of the product.

Indicates lists of one sort or another, such as procedures, precautions, etc.

OMRON, 1989

form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis-

sion of OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is

constantly striving to improve its high–quality products, the information contained in this manual is subject to change

without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no

responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa-

tion contained in this publication.

Note

1, 2, 3...

vii

TABLE OF CONTENTS

SECTION 1

Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 System Configuration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2

System Installation and Wiring 9. . . . . . . . . . . . . . . . . . . . .

2–1 General 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Installation Environment 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3 Dimensions and Installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4 I/O Connecting Cable 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–5 Wiring CPUs and Expansion I/O Units 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6 I/O Wiring 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–7 Special Wiring Precautions 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8 Settings 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3

Maintenance and Inspection 47. . . . . . . . . . . . . . . . . . . . . . .

3–1 General 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 Self–Diagnostic Functions 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 Replacing Parts 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 Preventive Measures 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5 Inspection 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A Standard Models 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B Specifications 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C Programming Console Operations 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D Programming Instructions 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

E System Configuration Chart 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Revision History 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

About this Manual:

This manual has been prepared to provide the information necessary to install, set up, and maintain

your C-series K-type Programmable Controller, a low-cost, compact, versatile industrial control sys-

tem providing up to 148 I/O points. For information regarding system programming and operation,

refer to the operation manual.

Refer to the Appendix for a complete list of all products covered in this manual, along with their full

model numbers.

SECTION 1

Introduction

1–1 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–1 CPUs 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–2 Expansion I/O Units 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–3 Analog Timer Unit 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1–4 I/O Link Units 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 System Configuration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 Nomenclature

This section gives the names and functions of the various components of

K–Type PCs and the basic Units with which they can be combined in a

System.

1–1–1 CPUs

In the diagram below, the C20K is shown as a representative model. Refer to

Appendix A Standard Models for your model’s exact specifications.

Power supply Ground Outputs Indicators

Expansion

I/O Unit,

Analog

Timer Unit, or

I/O Link Unit

connector

24–VDC output

Peripheral connector

InputsHigh–speed counter

(HDM) inputs

EP–ROM socket,

DIP switch

High–speed Counter When the high–speed counter (HDM(61)) is not being used, the two high–

speed counter input terminals can be used as normal DC input terminals.

Their ON/OFF response time, however, will be shorter (0.15 ms max.). Re-

gardless of whether or not the high–speed counter command is being used,

DIP switch pins 7 and 8 must be off whenever the hardware reset is not be-

ing used.

Indicators The diagram below shows the functions of the various indicators, taking the

C20K as an example.

8 9 10 11

0 1 2 3 4 5 6 7

OUTPUT 1 CH

POWER

RUN

ALARM

ERROR

INPUT 0 CH

OUTPUT: Shows whether the output is ON or OFF.

POWER: Stays lit while power is turned on to the

PC.

RUN: Stays lit while the PC is operating normally.

ALARM: Blinks during battery abnormality or cycle

time overrun. At this time PC operation will be

intermittent.

ERROR: Lights when self–diagnosis detects an

abnormality. The PC will stop operating.

INPUT: Shows whether the input is ON or OFF.

0 1 2 3 4 5 6 7

Memory Each of the C–Series K–Type PCs is provided with a built–in RAM (random–

access memory), as well as a ROM (read–only memory) chip socket. Either

may be used with ease. It is recommended to use the RAM for programming

and, when the program is completed, to save it in a ROM chip for protection.

The memory capacity in either case is 1,194 addresses.

Nomenclature Section 1–1

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