Mitsubishi MELSEC-A User manual

REVISIONS

*The

*Mtanual

Number

(NA)

66593-A

First

edition

[Cautions on Design]

0''

DANGER

external output transistor failure may keep

output

OFF.

Add an

external monitoring circuit for

output

signals whose incorrect execution could

result

serious accidents.

CAUTION

Do not bundle control lines or communication wires together with main circuit

or power lines, or lay them close

these lines.

As a guide, separate the lines bya distance of at least

150

mm, otherwise

malfunctions may occur due

noise.

[Cautions on Mounting]

CAUTION

Use

the PC in an environment that conforms

the general specifications in

the manual.

Using the PC in environments outside the ranges stated

the general

specifications will cause electric shock, fire, malfunction, or damage

to/deterioration of the product.

Make

sure that the module fixing projection on the baseof the module is

properly engaged in the module fixing hole in the base unit before mounting

the module.

Failure

mount the module properly will result in malfunction or failure, or in

the module falling.

[Cautions on Wiring]

CAUTION

Ground

shield wire to the encoder

@lay

box)

(using class

or higher class

grounding). Otherwise, malfunctioning

wilt

result.

Carry out wiring

the PC correctly, checking the rated voltage and terminal

arrangement of the product.

Using a power supply that doesnot conform

the rated voltage,or carrying

out wiring incorrectty, will*causefire or failure.

Input voltage in excessof the voltage set

the setting pin will cause failures.

Tighten the terminal screws

the stipulated torque.

Loose

screws will cause

short

circuits, fire, or malfukctions.

Make sure that no foreign matter such as chips or wiring offcuts gets inside

the

module.

will

cause fire, failure or malfunction.

[Cautions on Startup and Maintenance]

DANGER

not

touch

terminals while the power is

ON.

This

will

cause malfunctions.

Switch the power off before cleaning or re-tightening terminal screws.

Carrying out

this

work while thepower is

will cause failure or malfunction

of the module.

CAUTION

not disassemble ormodifyany module.

This will cause failure, malfunction, injuries,or fire.

Switch the power

OFF

before mounting or removing

the

module.

Mounting or removing

with the power

can cause failure or malfunction of

the module.

[Cautions on Disposal]

CAUTION

Dispose of this product as industrial waste.

INTRODUCTtON

Thank you for choosing the Mitsubishi MELSEC-A Series

General Purpose Programmable Control-

lers. Please read this manual carefully

that the equipment

used

its

optimum.

copy

this

manual should be forwarded

the end User.

INTRODUCTION

.......................................................

1-1-1-2

1.1Features

................................

..............................

SYSTEM

CONFIGURATION

............................................

SPECIFICATIONS

..................................................

-3-

3.1GeneralSpecifications

..................................................

3.2PerformanceSpecifications

...............................................

3.3Functions

.............................................................

3-5

3.4InterfaceswithExternalDevices

...........................................

3.6BufferMemoryAllocation

...............................................

3.7ApplicableEncoders

...................................................

3.5 I/O Signals fromho the PC CPU

...........................................

INSTALLATIONAND PRE-OPERATIONSElllNG PROCEDURE

.............

4.1 Pre-OperationSettingProcedure

..........................................

4.2HandlingPrecautions

....................................................

4.4Wiring

...............................................................

4-7

4.4.1Wiringpreconditions

..............................................

4.4.2 Wiring example for the connection with the open collector

output pulse generator

............................................

4.4.3 Wiring example for the connection of a controller

external

input terminals (PRESET and FSTART)

.............................

4.4.4 Wiring examples at external output terminals

(EQUs

..............

4.3PartNamesandSettings

................................................

PULSEINPUTANDCOUNTING METHOD

.................................

5-1

-5-8

5.1

Single-phasePulseInput

................................................

5.2 Countingat 2-Phase Pulse Input

...........................................

5.3 ReadingthePresentValue

...............................................

EXECUTINGTHE COINCIDENCE OUTPUT FUNCTION

......................

6.1 CoincidenceOutputFunction

.............................................

6.1.1 Coincidence output function operation

................................

6.1.2Programexamples

...............................................

EXECUTINGTHE PRESET FUNCTION

..................................

7.1PresetFunction

........................................................

7-1

7.2PresetUsingtheSequenceProgram

.......................................

7.2.1 Executing the preset function using the sequence program

................

7.2.2Exampleprogram

................................................

7.3Preset

ExternalInput

.................................................

7.3.1 When the preset is executed

external control signal

...................

...........

..........

EXECUTING

THE

RING

COUNlERFUWTlffl

.............................

8.1

RingCounterFunctio’n

...........

......................................

-1

8.1.1

Ringcounterfunctionoperation

.....................................

-2

8.1.2

Countrange

....................................................

8-3

8.2

ExampleProgram

......................................................

-5

I-

SELECTING ‘AND EXECUTlNGTHE

COUMZR

FUNCTION

.................

9.1

Selecting.

CounterFunction

...............................................

9 -1

9.1.1

Reading the counter function selection count value

......................

-3

9.1.2

Counterrors

....................................................

9-6

9.2

CountDisableFunction

..................................................

-7

9.2.1.

Exampleprogram

................................................

-8

9.3

Latch Counter Function

..............

...

..................................

9.3.1

Example

program

...............................................

9.4

SamplingCounterFunction

..............................................

9.4.1

Exampleprogram

...............................................

9.5

PeriodicPulseCounterFunction

..........................................

9.5.1

Exampleprogram

...............................................

PRO.GR.4MMING

FOR

USINGTHE AlSD62(ElD) WITH

REMO=’I~O

STATION

............................................

.IO

11.1

Errorlnformation

......................................................

11-1

11.2

Counter Value is Incorrect

...............................................

11.3

Count Cannot be Made

.................................................

APPENDIX

PERFORMANCE COMPARISON BETWEEN THE

AlSD62(E/D).

THE

AlSD61.

AND THE AD61

(Sl)

...................................

APP

APPENDIX

EXTERNALDIMENSIONS

.........................................

APP

.._I

....

INTRODUCTION MELSEC-A

INTRODUCTION

This user’s manual describes

the

spsqifications, handling and prqqrgm-

ming of

the

Al-SD62/Al

&fZWAfSb62D

type

htgh-s$&d

eounter thbdute

(hereinafter called the AlSD62(E/D))

be-used

combination with a

MELSEC-A series CPU module (hereinaftei called thePC CPU).

The AlSD62, AlSD62E and AlSD62D are a Dq-inpupsinkoutput type, a

DC input source output type and a differential ,input sink output type, re-

spectively.

The maximum

counting

speed

100

kpps

(A,ISD62(E))

200

kpps

(A1SD62D).

The A1SD62(OD) counts single-phase and 2-phase pulse inputs as shown

below:

Single-phase pulse input multiplied by one

.........

Counts at the leading

edge

trailing edgeof the pulse.

Single-phasepulseinputmultipliedby

two

.........

Counts at the leading edge and trailing edge of the pulse.

2-phase pulse input multiplied by one

pulse.

2-phase pulse input multiplied by two

pulse.

........

,Counts at the leading edge or trailing edgeof the phase

.........

Counts

the

leading edge and trailingedge

the phase

2-phase pulse input multiplied by four

.........

Counts at the leading edge and trailing edgeof the phase

and phase

pulses.

1-1

INTRODUCTION

MElSEC-A

The following diagram outlines how the AlSD62(E/D) operates.

function selection

Pulse Pulse

generator

Encoder

Externalcontrol

signal

Controller

Pmset/Counter

function selection

(4)

I/O

signal

bufbr memory

A1SD62

A1SD62E

AiSD62D

(2)

CHI

(3)

Coincidence

output

points)

______.

(3)

Coincidence

CH2

output

points)

(1) Input pulses tothe

A1 SD62/A1SD62WA1 SD62D

are counted.

(2)

The preset or counter function can

selected withan external control signal.

(3)

The pulse

compared as a coincidence output with the present count value,

(4)

The sequence pro ram helps confirm the

I/O

signals

the

and aslgnat is Issued accordlngly.

SD62IAlSD628AI SD620

and

the

buffer

rhemory

status, and start, stop and

preset the counter.

1-2

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