Mitsubishi Electric A1S68DAV, A1S68DAI, AJ68DAV-U-H, AJ68DAV-W-E, 13J809 User Manual

A

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

13J809

CODE

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

©1995 MITSUBISHI ELECTRIC CORPORATION

z SAFETY 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

z Provide 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

z Do 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.

z At 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

z Use 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.

z Install 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

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

If you do not, the PLC will malfunction.

z Before 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.

z Tighten the terminal screws to the specified torque.

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

z Take 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

z Do not touch the terminals while they are live.

This will cause malfunctions.

z Be 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

z Do not disassemble or tamper will the module.

This will cause failure, malfunctions, injuries or fire.

z Be 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.

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

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

z Before 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

z When disposing of the product, treat it as industrial waste.