Mitsubishi MELSEC QJ71C24N User manual

A - 1 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.

The instructions given in this manual are concerned with this product. For the safety instructions of the

programmable controller system, please read the user's manual of the CPU module to use.

In this manual, the safety precautions are classified into two levels: " WARNING" and " 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.

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

•For the operation status of each station at communication error in each station, refer to the

respective manual for each station.

The communication error may result in an accident due to incorrect output or malfunction.

•When using the notification function, the pager receiver may not be contacted due to the frequency

transmission status from the system setup environment and error on the receiver side.

To ensure the safety of the programmable controller system, install a call circuit with a lamp

display or buzzer sound.

•When performing the control of the programmable controller in operation (changing data) by

connecting a peripheral device to the CPU module or personal computer, etc. to the intelligent

device module, configure an interlock circuit in a sequence program so the safety of the overall

system is always maintained.

Also when performing other controls of the programmable controller in operation (changing

program and operation status (status control)), read this manual carefully and confirm if the

overall safety is maintained.

Especially, when this control is performed to a remote programmable controller from an external

device, troubles that have occurred on the programmable controller side may not be able to

immediately be handled if there is a data communication error.

Define a troubleshooting agreement between external devices and the programmable controller

CPU for data communication error occurrences, as well as construct an interlock circuit in the

sequence program.

WARNING

CAUTION

A - 2 A - 2

[Design Precautions]

!WARNING

•Do not write data into the "system area" of the buffer memory of intelligent function modules.

Also, do not use any "use prohibited" signals as an output signal to an intelligent function

module from the programmable controller CPU.

Writing data into the "system area" or outputting a signal for " use prohibited" may cause a

programmable controller system malfunction.

!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(3.9inch) or more from each other.

Not doing so could result in noise that may cause malfunction.

•When using the module while values, such as buffer memory set values, are registered in the

Flash ROM, do not turn off the power supply for the module loading station nor reset the

programmable controller CPU.

If the power supply for the module loading station is turned off or the programmable controller

CPU is reset while any values are registered, the data contents in the Flash ROM become

inconsistent and as a result the values must be set again in the buffer memory, etc. and

reregistered to the Flash ROM.

Also, this may cause failure and malfunction of the module.

[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.

If the module is not installed properly, it may cause the module to malfunction, fail or fall off.

Secure the module with screws especially when it is used in an environment where constant

vibrations may occur.

•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.

•Before mounting/dismounting the module, be sure to shut off all phases of external power supply

used by the system.

Failure to do so may cause product damage.

•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 A - 3

[Wiring Precautions]

!CAUTION

•When turning on the power and operating the module after installation and wiring are 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.

•Perform correct pressure-displacement, crimp-contact or soldering for external wire connections

using the tools specified by the manufactures.

Incorrect connection may cause short circuits, fire, or malfunction.

•Attach connectors to the module securely.

•Be sure to fix communication cables or power supply cables leading from the module by placing

them in the duct or clamping them.

Cables not placed in the duct or without clamping may hang or shift, allowing them to be

accidentally pulled, which may cause a module malfunction and cable damage.

•Before connecting the cables, check the type o f interface to be connected.

Connecting or erroneous wiring to the wrong interface may cause failure to the module and

external devices.

•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 screws are tightened too much, it may cause damage to the screw and/or the module,

resulting in fallout, short circuits or malfunction.

•When removing the communication cable or power supply cable from the module, do not pull

the cable. When removing the cable with a connector, hold the connector on the side that is

connected to the module.

When removing the cable connected to the terminal block, first loosen the screws on the part

that is connected to the terminal block.

Pulling the cable that is still connected to the module may cause malfunction or damage to the

module or cable.

•Be careful not to let foreign matters 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 heat ventilation.

A - 4 A - 4

[Startup/Maintenance Precautions]

!CAUTION

•Do not disassemble or modify each module.

Doing so could cause failure, malfunction injury or fire.

•Before mounting/dismounting the module, be sure to shut off all phases of external power supply

used by the system.

Failure to do so may cause module failure or malfunctions.

•Do not install/remove the module to/from the base unit, or the terminal block to/from the module

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.

•Before cleaning up and retightening terminal screws and module fixing screws, be sure to shut

off all phases of external power supply used by the system.

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.

[Operation Precautions]

!CAUTION

•When performing the control of the programmable controller in operation (especially changing

data, program, and operation status (status control)) by connecting a personal computer, etc. to

the intelligent function module, read this manual carefully and confirm if the overall safety is

maintained.

Failure to perform correct operation s to change data, program, or the status may result in

system malfunction, machine damage, or an accident.

[Disposal Precautions]

!CAUTION

•When disposing of this product, treat it as industrial waste.

A - 5 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;

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.

A - 6 A - 6

REVISIONS

The manual number is given on the bottom left of the back cover.

Print Date Manual Number Revision

Dec., 1999 SH (NA)-080006-A First edition

Oct., 2000 SH (NA)-080006-B Add the contents of the function version B.

Correction

Contents, Entire manual (change MELSECNET/10H to MELSECNET/H),

About Manuals, About The Generic Terms and Abbreviations, Product

Configuration, Section 1.2, 1.2(8), 1.3 POINT, Section 2.2, 2.3, 2.5, 2.6,

Section 3.1, 3.6, 3.9, Section 4.2, 4.4.1(2)(a)(Figure), 4.6(1), Chapter

5(all), Section 6.1.1, 6.1.3, 6.1.4, Section 7.1.1, 7.1.2, 7.2.2, Section 8.1,

8.2.1, 8.2.2, 8.3.1, 8.3.2, Section 9.2 to 9.7, Section 10.1.1, 10.2.1,

10.3.8, 10.3.18, Appendix 1.1(2), Appendix 2(all), Appendix 3(2),

Appendix 7, Appendix 8

Addition

Entire manual (add the explanation on MELSECNET/H remote I/O

station), The Manual's Use and Structure, Section 2.1, Section

3.1(Table), Section 4.4.2(1)(d), 4.9.2, Section 8.3.2 POINT, Section

10.2.1 (7164H, 7E70H), Appendix 3(1)

Jun., 2001 SH (NA)-080006-C Put Windows Rbase software product together from Mitsubishi

Programmable Controller MELSEC Series to Mitsubishi integrated FA

Software MELSOFT Series.

Standardize the name from software package (GPP function) to Product

name (GX Developer).

Standardize the name from utility package (QSCU) to Product name (GX

Configurator-SC).

Correction

Conformation to the EMC Directive and Low Voltage Instruction, About

the Generic Terms and Abbreviations, Product Configuration, Program

Examples (Section 6.1.4, 6.2.3, Section 7.2.3, Section 9.3, 9.5, Appendix-

8), Section 1.2(1)(d), 1.2(4)(b)(Diagram), 1.2(8)(b), 1.3, Section 2.1, 2.3,

2.4, 2.5, 2.7, Section 3.1(Table), 3.2.1(3), 3.3.3(2), 3.4(Table), 3.9,

Section 4.3, 4.5.2, Section 5.1.5(3), 5.2, Section 6.1.4, Section 8.2, 8.3.2

POINT, 8.4.2, 8.4.9(Table), 8.6.3(Table), 8.6.7(Table), Section 10.1.2(b),

10.3(Table), Appendix 1.1, 2.1, 6, 7, 9

Addition

Section 2.6, Section 8.4.4, 8.6.2(Table), Section 10.2.1(716FH, 7FEFH),

10.2.3(7FE9H), 10.3.14, Appendix 3

Feb., 2002 SH (NA)-080006-D

Addition

About The Generic Terms and Abbreviations, Section 1.2, Section 2.1,

2.7, Section 4.5.2, Section 8.2.1, 8.2.2, Section 10.2.1, Appendix 1.1, 6

Oct., 2002 SH (NA)-080006-E

Addition

The Manual’s Use and Structure, About The Generic Terms and

Abbreviations, Section 1.2(1)(4), Section 2.1, 2.4, Section 5.2, Section

6.1.4, Section 9.8, Appendix 7

Jan., 2003 SH (NA)-080006-F

Addition model

QJ71C24N, QJ71C24N-R2, QJ71C24N-R4

A - 7 A - 7

The manual number is given on the bottom left of the back cover.

Print Date Manual Number Revision

Jan., 2003 SH (NA)-080006-F

Addition

SAFETY PRECAUTIONS, About Manuals, About The Generic Terms

and Abbreviations, Product Configuration, Section 1.3, Section 2.1, 2.2,

2.3, 2.5, 2.6, 2.7, Section 3.1, 3.2.1, 3.3.1, 3.6, 3.8, 3.9, Section 4.1, 4.3,

4.4, 4.5, 4.6, 4.7.1, Section 6.1.1, 6.1.2, Section 7.1, 7.2.2, Chapter 8(all),

Section 9.1, 9.6, Section 10.1.2(b), 10.1.3(1), 10.2, Appendix 1, Appendix

2.1, Appendix 3, Appendix 5, Appendix 9

Jun., 2004 SH (NA)-080006-G

Correction

About The Generic Terms and Abbreviations, Product Configuration,

Chapter 2 (all), Section 3.8, Section 4.2.2 (1), Section 5.1.3 POINT,

Section 5.1.4, Chapter 8 (screen change), Section 8.6.10, Section 10.1.1,

Section 10.2

Addition

Appendix 9

Sep., 2004 SH (NA)-080006-H

Correction

Section 1.3, Section 2.5, 2.6, Section 3.5, 3.6, 3.9, Section 4.1, Chapter 8

(screen change), Section 8.6.9, 8.6.10, Section 10.1, 10.2, Appendix 1.1

Addition

Appendix 9.12

Feb., 2005 SH (NA)-080006-I

Correction

Section 2.1 (1), Section 3.1, Section 4.5.2 (1) ©, Chapter 9 (Simultaneous

execution of dedicated instructions), Section 10.2.1

Aug., 2005 SH (NA)-080006-J

Correction

SAFETY PRECAUTIONS, Section 3.3.1, 3.3.3, Section 8.2.2,

Section 9.4, Appendix 5, Appendix 7.1, 7.2

Feb., 2006 SH (NA)-080006-K

Correction

Section 2.6, Section 3.9, Section 8.2.1, 8.3.3, Section 9.1, Appendix 5

Mar., 2006 SH (NA)-080006-L

Correction

SAFETY PRECAUTIONS, Section 1.3, Section 2.6, Section 3.2.1, 3.8,

3.9, Section 8.6.9, Section 10.2.1, 10.3.11, Appendix 1

Addition

Section 10.1.7

Jan., 2008 SH (NA)-080006-M

Change of a term

"PLC" was changed to "programmable controller".

Correction

About The Generic Terms and Abbreviations, Section 1.2, 1.3, Section

2.1, 2.5, 2.7, Section 3.2.1, 3.2.2, 3.3.1, 3.9, Section 4.1, 4.3, 4.4, 4.5.2,

4.6, 4.9.2, Section 5.1.4, 5.2, Section 6.1.6, Chapter 8, Section 9.2 to 9.8,

Section 10.1.1, 10.1.6, 10.2.1,10.2.3, 10.3.3, 10.3.4, 10.3.8, 10.3.11,

10.3.19, Appendix 1.1, Appendix 2.1, Appendix 3, Appendix 5, Appendix

7.1

Addition

Section 2.5, Appendix 1.3

A - 8 A - 8

The manual number is given on the bottom left of the back cover.

Print Date Manual Number Revision

May, 2008 SH (NA)-080006-N

Correction

SAFETY PRECAUTIONS, About Manuals, Compliance with the EMC

and Low Voltage Directives, About The Generic Terms and

Abbreviations, Section 1.2, 1.3, Section 2.1 to 2.3, 2.8, Section 4.1, 4.5.2,

Section 5.1.1, Section 8.2.1, 8.3.2, 8.3.3, Section 9.8, Section 10.1.1,

10.2.1, 10.3.3, 10.3.6, Appendix 1.1, 2.1, 3

Addition

Section 2.7

June, 2009 SH (NA)-080006-O

Correction

About Manuals, Manual’s Use and Structure, About The Generic Terms

and Abbreviations, Definitions and Descriptions of Terminology,

Sections 1.2, 1.3, 2.1, 2.2, 2.4 to 2.6,

2.8, 3.1, 3.2.1, 3.3.4, 3.4 to 3.6, 3.8, 3.9, 4.1 to 4.3,

4.4.2, 4.5.2, 4.5.3, 4.6, 4.7, 4.7.1, 5.1.4, 5.1.5, 6.1.2,

6.1.4, 6.2.2, 7.1.2, and 7.2.2, Chapter 9, Sections 9.1, 9.2.1, 9.2.2,

9.3.1, 9.4, 9.4.5, 9.6.1, 9.6.3, 10.2 to 10.8, 11.1.1, 11.1.2, 11.1.5,

11.1.6, 11.2.1, 11.3, 11.3.1 to 11.3.3,

and 11.3.5 to 11.3.22, Appendixes 1.1, 2.1, 3, 9.6, and 10

Partial addition

Section 3.3.4, Chapter 8, Sections 9.4.9, 9.6.7, 11.3.4, and 11.3.6

Section number change

Chapters 8 to 10 9 to 11, Sections 9.6.7 to 9.6.10 9.6.8 to 9.6.11,

Sections 9.4.9 to 9.4.11 9.4.10 to 9.4.12,

Section 11.3.4 11.3.5, Sections 11.3.5 to 11.3.20 11.3.7 to 11.3.22

Apr., 2011 SH (NA)-080006-P

Correction

SAFETY PRECAUTIONS, About The Generic Terms and Abbreviations,

Sections 1.2, 1.3, 2.1, 2.2, 2.8, 3.2.1, 3.2.2, 3.3.1, 3.3.2, 3.8, 4.4, 5.2,

6.1.1, 6.1.3, 9.2.1, 9.2.2, 10.1, 10.4, 11.2.1, 11.3.3, 11.3.8, 11.3.21,

Appendixes 1.1, 3, 6, 7.1

Addition

CONDITIONS OF USE FOR THE PRODUCT, Sections 8.1.5, 8.1.6, 10.7

Section number change

Section 10.8 10.9

Japanese Manual Version SH-080001-X

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.

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