Mitsubishi Electric A1S68DAV Manuale utente

Digital-

nalog

Conversion Module

User’s Manual

(Hardware)

A1S68DAV/DAI

Thank you for buying the Mitsubishi general-purpose programmable

controller MELSEC-A Series

Prior to use, please read both this manual and detailed manual

thoroughly and familiarize yourself with the product.

MODEL AJ68DAV-U-H/W-E

MODEL

CODE 13J809

IB (NA)-66586-F(1112) MEE

zSAFETY PRECAUTIONS z

(Read these precautions before using this product.)

Before using this product, please read this manual and the relevant manuals

carefully and pay full attention to safety to handle the product correctly.

The instructions given this manual are concerned with this product. Refer to the

User’s Manual of the CPU module in use for details on the safety instructions for

the programmable logic controller system.

In this manual, the safety precautions are classified into two levels:

"WARNING" and " CAUTION".

Under some circumstances, failure to observe the precautions given under

"CAUTION" may lead to serious consequences.

Observe the precautions of both levels because they are important for personal

and system safety.

Make sure that the end users read this manual and then keep the manual in a safe

place for future reference.

[DESIGN PRECAUTIONS]

WARNING

zProvide a failsafe circuit to ensure that the system as whole can continue to function

safely even if there is an external power supply fault or PLC failure.

Otherwise there will be danger of accidents due to erroneous outputs or

misoperation.

(1) The status of analog output differs depending on the settings for the functions

that control analog output. Make the settings with enough care. For details of the

analog output status, refer to Section 3.4.4 of the detailed manual.

(2) Normal output may not be obtained from output terminals or their internal circuits.

Provide an external circuit to monitor output signals whose disruption could

cause serious accidents.

CAUTION

zDo not bundle the control wire and the communication cable with the main circuit or

power line or keep them close to one another.

Keep the control wire and the communication cable at least 100mm (3.94inch) away

from the main circuit or power line.

Otherwise, noise or malfunctions will occur.

zAt power ON/OFF, voltage or current may instantaneously be output from the output

terminal of this module. In such case, wait until the analog output becomes stable to

start controlling the external device.

[INSTALLATION PRECAUTIONS]

CAUTION

zUse the PLC in an environment that meets the general specifications given in the

User’s Manual of the CPU module in use.

Using it an environment which does not meet the general specifications could cause

electric shock, fire or malfunctions, and damage or deterioration of the module.

zInstall the module by engaging the module mounting projections on the lower part of

the module in the mounting holes of the base unit.

Incorrect installation could result in malfunctions, failure of detachment.

[WIRING PRECAUTIONS]

CAUTION

zGround the FG terminal using third class grounding or higher exclusively for the PLC.

If you do not, the PLC will malfunction.

zBefore connecting wires to the PLC, check the rated voltage and the terminal

arrangement.

Connecting power of a different voltage or wiring incorrectly will result in fire or

failure.

zTighten the terminal screws to the specified torque.

Loose terminal screws will cause a short, fire or malfunctioning.

zTake all possible measures to prevent chips or wire scraps from entering the module.

Entry of foreign material will cause fire, failure of malfunctions.

[STARTING AND MAINTENANCE PRECAUTIONS]

WARNING

zDo not touch the terminals while they are live.

This will cause malfunctions.

zBe sure to shut off all phases of the external power supply used by the system before

cleaning or retightening the terminal screws.

Not doing so can cause the module to fail or malfunction.

CAUTION

zDo not disassemble or tamper will the module.

This will cause failure, malfunctions, injuries or fire.

zBe sure to shut off all phases of the external power supply used by the system before

mounting or removing the module.

Not doing so may cause damage to the module.

zDo not mount/remove the module onto/from base unit more than 50 times

(IEC61131-2-compliant), after the first use of the product.

zBefore handling the module, always touch grounded metal, etc. to discharge static

electricity from the human body.

Failure to do so may cause the module to fail or malfunction.

[DISPOSAL PRECAUTIONS]

CAUTION

zWhen disposing of the product, treat it as industrial waste.

zCONDITIONS OF USE FOR THE PRODUCT z

(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;

i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead

to any major or serious accident; and

ii) where the backup and fail-safe function are systematically or automatically

provided outside of the PRODUCT for the case of any problem, fault or failure

occurring in the PRODUCT.

(2) The PRODUCT has been designed and manufactured for the purpose of being used

in general industries.

MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING,

BUT NOT LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON

CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY OR

DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the

PRODUCT THAT ARE OPERATED OR USED IN APPLICATION NOT INTENDED

OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR WARNING

CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY

MANUALS, TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT.

("Prohibited Application")

Prohibited Applications include, but not limited to, the use of the PRODUCT in;

yNuclear Power Plants and any other power plants operated by Power companies,

and/or any other cases in which the public could be affected if any problem or fault

occurs in the PRODUCT.

yRailway companies or Public service purposes, and/or any other cases in which

establishment of a special quality assurance system is required by the Purchaser

or End User.

yAircraft or Aerospace, Medical applications, Train equipment, transport

equipment such as Elevator and Escalator, Incineration and Fuel devices,

Vehicles, Manned transportation, Equipment for Recreation and Amusement, and

Safety devices, handling of Nuclear or Hazardous Materials or Chemicals, Mining

and Drilling, and/or other applications where there is a significant risk of injury to

the public or property.

Notwithstanding the above, restrictions Mitsubishi may in its sole discretion,

authorize use of the PRODUCT in one or more of the Prohibited Applications,

provided that the usage of the PRODUCT is limited only for the specific applications

agreed to by Mitsubishi and provided further that no special quality assurance or

fail-safe, redundant or other safety features which exceed the general specifications

of the PRODUCTs are required. For details, please contact the Mitsubishi

representative in your region.

About the Manuals

The following product are available for this equipment.

Refer to the table given below to choose suitable manuals.

Detailed Manual

Manual name Manual No.

(Model code)

D/A converter module type A1S68DAV/DAI User's Manual IB-66587

COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES

(1) Method of ensuring compliance

To ensure that Mitsubishi programmable controllers maintain EMC and Low Voltage

Directives when incorporated into other machinery or equipment, certain measures

may be necessary. Please refer to one of the following manuals.

yUser's manual for the CPU module used

yUser's manual (hardware) for the CPU module or base unit used

The CE mark on the side of the programmable controller indicates compliance with

EMC and Low Voltage Directives.

(2) Additional measures

No additional measures are necessary for the compliance of this product with EMC

and Low Voltage Directives.

1. General Description

This manual gives the specifications and handling instructions for the A1S68DAV digital

to analog converter module (hereafter called the “A1S68DAV”) and the A1S68DAI digital

to analog current converter module (hereafter called the “A1S68DAI”), which are used in

combination with a MELSEC A series compact building block type PLC CPU (hereafter

called the “PLC CPU”)

A1S68DAV is used to convert incoming digital values (16-bit signed binary data) which

are set with the PLC CPU to analog values (voltage outputs ranging from -10V to 10V).

A1S68DAI is used to convert incoming digital values (16-bit signed binary data) which

are set with the PLC CPU to analog values (voltage output ranging from 4mA to 20mA).

A1S68DAV and A1S68DAI are referred to as “A1S68DAV/DAI” or “module” in this

manual.

1.1 Related manuals

The following manuals given the specifications, handling, and programming method for

the A1S68DAV/DAI.

A1S68DAV/DAI User’s Manual (IB-66587)

2. Performance Specifications

The performance specifications of the A1S68DAV/DAI are tabled below.

For the general specifications, refer to the user’s manual for the PLC CPU are using.

Specification

Item A1S68DAV A1S68DAI

Digital input value -2048 to 2047 0 to 4095

Analog output

-10 to 0 to 10 VDC

(External load resistance:

2KΩto 1MΩ)

4 to 20mADC

(External load resistance:

0 to 600Ω)

Digital input

value

Analog output

value

Digital input

value

Analog output

value

2000 10V 4000 20mA

1000 5V 2000 12mA

0 0V 0 4mA

-1000 -5V

I/O characteristics

-2000 -10V

Maximum resolution of

analog value 5mA 4μA

Overall accuracy (accuracy

to maximum value) ±1% (±100mV) ±1% (±200μA)

Maximum conversion time Maximum 4ms *1/8 channels

Output short protection Provided

Analog output points 8 channels/module

Insulation method Photocoupler insulation between output terminals and PLC power.

Offset/gain adjustment Not provided

Number of I/O points Special, 32

Connection terminal 20 point terminal block (M3.5 ×7screws)

Applicable wire size 0.75 to 1.5mm2

Applicable solderless

terminal R1.25-3, 1.25-YS3A, RAV1.25-3, V1.25-YS3A

Internal current

consumption (5VDC) 0.65A 0.85A

Weight 0.22kg *2

*1: If the frequency of access from the PLC CPU using FROM/TO instructions is high

(e.g.scan time of 5ms or less with access every scan), this can be extended up to

about 6ms.

*2: The weight in hardware version “F”or earlier is 0.28kg.

How to check the hardware version

The hardware version for the A1S68DAV/DAI can be checked on the label on the front of

the module.

Software Version

Hardware Version

Front of Module

1S68DA

RUN

3. Nomenclature and Settings

The name of each part of the A1S68DAV/DAI is indicated below.

A1S68DAV

RUN

HLD/CLR

A1S68DAI

RUN

HLD/CLR

(FG)

12 13

10 9

16 15

18 17

12 13

16 15

18 17

20 19

5) 5)

(FG)

Remark

In hardware version “F” or earlier, the RUN LED is positioned 6mm left from the one of

hardware version “G” or later.

A1S68DA

RUN

Hardware version

“F” or earlier

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