Mitsubishi Electric Q68AD-G User manual

Channel Isolated Analog-Digital Converter Module/
Channel Isolated Analog-Digital Converter Module
(With Signal Conditioning Function)
User's Manual
-Q68AD-G
-Q66AD-DG
-GX Configurator-AD (SW2D5C-QADU-E)

A- 1
SAFETY PRECAUTIONS
(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.
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 Precaution]
WARNING
Do not write any data to the "system area" or "write-protect area" of the buffer memory areas in
the intelligent function module. Also, do not use any "prohibited to use" signals as an output
signal to an intelligent function module from the programmable controller CPU.
Doing so may cause malfunction of the programmable controller system.
CAUTION
Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100mm or more from each other.
Not doing so could result in noise that may cause malfunction.
WARNING
CAUTION
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in minor or moderate injury or property damage.

A- 2
[Installation Precautions]
CAUTION
Use the programmable controller in an environment that meets the general specifications
contained in the user's manual of the CPU module to use.
Using this programmable controller in an environment outside the range of the general
specifications may cause electric shock, fire, malfunction, and damage to or deterioration of the
product.
While pressing the installation lever located at the bottom of module, insert the module fixing tab
into the fixing hole in the base unit until it stops. Then, securely mount the module with the fixing
hole as a supporting point.
For the Q66AD-DG, secure the module with fixing brackets after installation to the base unit.
When using the Q68AD-G in an environment where they are frequent vibrations, screw the module
to the base unit after installation.
Tighten the screws within the range of specified torque.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damage to the screw and/or the module,
resulting in fallout, short circuits or malfunction.
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.
In the system where a CPU module supporting the online module change is used and on the
MELSECNET/H remote I/O stations, modules can be replaced online (during energizing).
However, there are some restrictions on replaceable modules and the replacement procedures
are predetermined for each module.
For details, refer to the chapter of the online module change in this manual.
Do not directly touch the conductive area or electronic components of the module.
Doing so may cause malfunction or failure in the module.

A- 3
[Wiring Precautions]
CAUTION
Individually ground the FG terminal of the programmable controller with a ground resistance of
100Ωor less.
Not doing so can cause an electric shock or malfunction.
When turning on the power and operating the module after wiring is completed, always attach the
terminal cover that comes with the product.
There is a risk of electric shock if the terminal cover is not attached.
Tighten the terminal screws within the range of specified torque.
If the terminal screws are loose, it may result in short circuits or malfunction.
If the terminal screws are tightened too much, it may cause damage to the screw and/or the
module, resulting in short circuits or malfunction.
Be careful not to let foreign matter such as sawdust or wire chips get inside the module.
They may cause fires, failure or malfunction.
The top surface of the module is covered with protective film to prevent foreign objects such as
cable offcuts from entering the module when wiring.
Do not remove this film until the wiring is complete.
Before operating the system, be sure to remove the film to provide adequate ventilation.

A- 4
[Starting and Maintenance Precautions]
[Disposal Precautions]
CAUTION
Do not disassemble or modify the modules.
Doing so could cause failure, malfunction injury or fire.
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 failure or malfunction of the module.
In the system where a CPU module supporting the online module change is used and on the
MELSECNET/H remote I/O stations, modules can be replaced online (during energizing).
However, there are some restrictions on replaceable modules and the replacement procedures
are predetermined for each module.
For details, refer to the chapter of the online module change in this manual.
Do not install/remove the module to/from the base unit more than 50 times after the first use of the
product. (IEC 61131-2 compliant)
Failure to do so may cause malfunction.
Do not touch the connector while the power is on.
Doing so may cause malfunction.
Be sure to shut off all phases of the external power supply before cleaning or retightening the
terminal screws or module fixing screws.
Not doing so may cause failure or malfunction of the module.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damages to the screws and/or the module,
resulting in the module falling out, short circuits or malfunction.
Always make sure to touch the grounded metal to discharge the electricity charged in the body,
etc., before touching the module.
Failure to do so may cause a failure or malfunctions of the module.
CAUTION
When disposing of this product, treat it as industrial waste.

A- 5
CONDITIONS OF USE FOR THE PRODUCT
(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;
• Nuclear 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.
• Railway 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.
• Aircraft 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.

A- 6
REVISIONS
* The manual number is given on the bottom left of the back cover.
Print Date *Manual Number Revision
Oct., 2006 SH (NA)-080647ENG-A First edition
Jan., 2007 SH(NA)-080647ENG-B
Section 3.3.2, 3.4.12, 4.6.2, 6.3.1, 6.3.2, 6.5.1, 6.5.2
Jan., 2008 SH(NA)-080647ENG-C
SAFETY PRECAUTIONS, About the Generic Terms and Abbreviations, Section
1.1, Section 2.1, Section 2.3, Section 3.2.1, Section 3.4.1, Section 4.1, Section
4.4.2, Section 4.6.1, Section 4.6.2, Section 5.2.1, Section 5.2.2, Section 5.3.2,
Section 5.3.3, Section 5.6.1, Section 5.6.4, Section 5.6.5, Section 7.3.3, Section
7.3.5, Section 8.1, Appendix 1, Appendix 1.1, Appendix 1.2, Appendix 1.3
Section 2.2
May, 2008 SH(NA)-080647ENG-D
SAFETY PRECAUTIONS, Compliance with the EMC and Low Voltage Direc-
tives, About the Generic Terms and Abbreviations, Section 2.1, 2.3, Section
3.1.1, 3.2.1, 3.2.4, Section 4.1, 4.3, Section 5.2.1, 5.2.2, 5.3.1, 5.3.2, 5.3.3,
Chapter 7, Section 7.1
Oct., 2008 SH(NA)-080647ENG-E
Section 2.1, Section 3.1.1, 3.1.2, 3.2, 3.2.1, 3.2.3, 3.2.6, 3.3.2, 3.4.1, 3.4.2,
3.4.4, 3.4.7, 3.4.9, 3.4.11, 3.4.12, 3.4.13, 3.4.22, Section 4.3, 4.5, Section 5.1,
5.4, Section 8.1, 8.2.4, 8.2.6, Appendix 1.1, 1.2, 1.3
Appendix 2
Sep., 2011 SH(NA)-080647ENG-F
SAFETY PRECAUTIONS, COMPLIANCE WITH THE EMC AND LOW VOLT-
AGE DIRECTIVES, Section 4.6.1, 4.6.2, 4.6.3, 6.2.1, 6.2.2, 6.2.3, 6.3, 6.3.1,
6.3.2, 6.4, 6.4.1, 6.4.2, 6.4.3, 6.5, 6.5.1, 6.5.2
CONDITIONS OF USE FOR THE PRODUCT
Feb., 2012 SH(NA)-080647ENG-G
SAFETY PRECAUTIONS, COMPLIANCE WITH THE EMC AND LOW VOLT-
AGE DIRECTIVES, Section 1.1, 2.1 to 2.3, 3.1.1, 3.1.2, 3.2, 3.2.1, 3.2.3, 3.2.4,
3.2.6, 3.3.2, 3.4.1, 3.4.2, 3.4.4, 3.4.5, 3.4.7, 3.4.10, 3.4.15 to 3.4.17, 3.4.19,
3.4.21, 3.4.22, 3.4.25, 4.1, 4.1.1, 4.3, 4.4.2, 4.5, 4.6.1, 4.6.2, 5.2.1, 5.2.2, 5.3.1,
5.3.3, 5.4, 5.5, 5.6.1 to 5.6.3, 6.2.1, 6.2.2, 6.3, 6.3.1, 6.4.1, 6.4.2, 6.5, 6.5.1,
Chapter 7, 7.1, 7.2, 7.3.1 to 7.3.6, 7.5, 8.1, 8.2.4, 8.2.6, Appendix 2, Appendix 3
Correction
Correction
Addition
Correction
Correction
Addition
Correction
Addition
Correction

A- 7
Japanese Manual Version SH-080645-L
© 2006 MITSUBISHI ELECTRIC CORPORATION
Print Date *Manual Number Revision
Dec., 2015 SH(NA)-080647ENG-H
SAFETY PRECAUTIONS, MANUALS, COMPLIANCE WITH THE EMC, LOW
VOLTAGE, AND MACHINERY DIRECTIVES, GENERIC TERMS AND ABBRE-
VIATIONS, Section 2.1, 3.1, 3.1.1, 3.2, 3.3.2, 3.4.2, 3.4.4, 4.4.2, 4.6.2, 5.2.1,
5.2.2, 6.3.2, 6.4.2, 6.5.1, 6.5.2, 8.1, 8.2.1, 8.2.4, Appendix 2
Jul., 2017 SH(NA)-080647ENG-I
INTRODUCTION, COMPLIANCE WITH THE EMC, LOW VOLTAGE, AND
MACHINERY DIRECTIVES, GENERIC TERMS AND ABBREVIATIONS, Sec-
tion 2.1, 2.3, 4.3, 4.4.2, 4.4.3, 6.2.1, 6.4.1, Appendix 3
This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial
property rights which may occur as a result of using the contents noted in this manual.
Correction
Correction

A- 8
SAFETY PRECAUTIONS .................................................................................................................................A - 1
CONDITIONS OF USE FOR THE PRODUCT..................................................................................................A - 5
REVISIONS.......................................................................................................................................................A - 6
INTRODUCTION...............................................................................................................................................A - 8
CONTENTS ......................................................................................................................................................A - 8
MANUALS.......................................................................................................................................................A - 12
COMPLIANCE WITH THE EMC, LOW VOLTAGE, AND MACHINERY DIRECTIVES ..................................A - 12
GENERIC TERMS AND ABBREVIATIONS....................................................................................................A - 13
PACKING LIST ...............................................................................................................................................A - 14
1 OVERVIEW 1 - 1 to 1 - 3
1.1 Features........................................................................................................................................... 1 - 1
2 SYSTEM CONFIGURATION 2 - 1 to 2 - 6
2.1 Applicable Systems ......................................................................................................................... 2 - 1
2.2 Precautions on System Configuration ............................................................................................. 2 - 3
2.3 How to Check the Function Version, Serial No., and Software Version .......................................... 2 - 4
3 SPECIFICATIONS 3 - 1 to 3 - 75
3.1 Performance Specifications ............................................................................................................. 3 - 1
3.1.1 Performance specifications list ............................................................................................... 3 - 1
3.1.2 I/O conversion characteristic .................................................................................................. 3 - 5
3.1.3 Accuracy............................................................................................................................... 3 - 12
3.2 Function List .................................................................................................................................. 3 - 13
3.2.1 A/D conversion methods ...................................................................................................... 3 - 15
3.2.2 Maximum and minimum values hold function....................................................................... 3 - 18
3.2.3 Input signal error detection function ..................................................................................... 3 - 18
3.2.4 Warning output function........................................................................................................ 3 - 25
3.2.5 Conversion starting time setting function (Q66AD-DG only) ................................................ 3 - 29
3.2.6 Scaling Function ................................................................................................................... 3 - 30
3.3 I/O Signals for the Programmable Controller CPU ........................................................................ 3 - 33
3.3.1 List of I/O signals .................................................................................................................. 3 - 33
3.3.2 Details of I/O signals............................................................................................................. 3 - 35
3.4 Buffer Memory ............................................................................................................................... 3 - 43
3.4.1 Buffer memory assignment...................................................................................................3-43
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC-Q series programmable controllers.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series programmable controller you have purchased, so as to ensure
correct use.
Please forward a copy of this manual to the end user.
CONTENTS