Mitsubishi Electric MELSEC-A Series Manuale utente

Transition from MELSEC-A/QnA (Large Type),

AnS/QnAS (Small Type) Series to Q Series

Handbook

(Network Modules)

Apr. 2018 Edition

A- 1

SAFETY PRECAUTIONS

(Read these precautions before using this product.)

Before using this product, please read this handbook and the relevant manuals introduced in this handbook

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

In this handbook, 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 handbook and then keep the handbook in a safe place for future

reference.

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

[Design Precautions]

WARNING

●For the operating status of each station after a communication failure in the data link or the network,

refer to the following manuals.

Failure to do so may result in an accident due to an incorrect output or malfunction.

• Q Corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network)

• Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network)

• Q Corresponding MELSECNET/H Remote I/O Module Reference Manual (MELSECNET/10

Mode)

• CC-Link System Master/Local Module User's Manual

●If a coaxial cable is disconnected, the network may be unstable, resulting in a communication failure

of multiple stations. Configure an interlock circuit in the program to ensure that the entire system will

always operate safely even if communications fail. Failure to do so may result in an accident due to

an incorrect output or malfunction.

●When connecting a peripheral with the CPU module or connecting a personal computer with an

intelligent function module to modify data of a running programmable controller, configure an

interlock circuit in the program to ensure that the entire system will always operate safely.

For other forms of control (such as program modification or operating status change) of a running

programmable controller, read the relevant manuals carefully and ensure that the operation is safe

before proceeding. Especially, when a remote programmable controller is controlled by an external

device, immediate action cannot be taken if a problem occurs in the programmable controller due to

a communication failure. To prevent this, configure an interlock circuit in the program, and determine

corrective actions to be taken between the external device and CPU module in case of a

communication failure.

●Do not write any data to the "system area" of the buffer memory in each intelligent function module.

Do not write any data to the "system area" of the buffer memory in the intelligent function module.

Also, do not use any "use prohibited" signals as an output signal from the CPU module to the

intelligent function module. Doing so may cause malfunction of the programmable controller system.

●To set the auto refresh parameter, select the device Y for the remote output (RY) refresh device.

If a device other than Y is selected, the CPU module holds the device status even after its status is

changed to STOP. For how to stop data link, refer to the following manual.

• CC-Link System Master/Local Module User's Manual

●If a CC-Link dedicated cable is disconnected, the network may be unstable, resulting in a

communication failure of multiple stations. Configure an interlock circuit in the program to ensure

that the entire system will always operate safely even if communications fail.

Failure to do so may result in an accident due to an incorrect output or malfunction.

A- 3

CAUTION

●After changing the parameter of the CPU module or the remote I/O module, reset the CPU module.

Failure to do so may cause malfunction, since the previous parameter setting remains in the module.

●Do not install the control lines or communication cables together with the main circuit lines or power

cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction

due to noise.

A- 4

[Installation Precautions]

WARNING

●Shut off the external power supply (all phases) used in the system before mounting or removing a

module.

Failure to do so may result in electric shock or cause the module to fail or malfunction.

CAUTION

●Use the programmable controller in an environment that meets the general specifications in the

user’s manual for the CPU module used.

Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the

product.

●To mount a Q series module, while pressing the module mounting lever located in the lower part of

the module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the

module until it snaps into place.

Incorrect mounting may cause malfunction, failure or drop of the module.

When using the programmable controller in an environment of frequent vibrations, fix the module

with a screw.

Tighten the screw within the specified torque range.

Undertightening can cause drop of the screw, short circuit or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.

●To mount an A/AnS/QnA/QnAS module, fully insert the module fixing projection(s) located in the

lower part of the module into the hole(s) in the base unit and press the module until it snaps into

place (To fix an AnS series module to the base unit, tighten the screws within the specified torque

range).

Incorrect mounting may cause malfunction, failure or drop of the module.

●Shut off the external power supply (all phases) used in the system before mounting or removing the

module. Failure to do so may result in damage to the product.

●A MELSECNET/H module with function version D or later can be replaced online (while power is on)

on any remote I/O station. Note that there are restrictions on the modules that can be replaced

online, and each module has its predetermined replacement procedure.

For details, refer to the relevant section in the following.

• Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network)

●Do not directly touch any conductive parts and electronic components of the module.

Doing so can cause malfunction or failure of the module.

A- 5

[Wiring Precautions]

WARNING

●Shut off the external power supply (all phases) used in the system before wiring.

Failure to do so may result in electric shock or cause the module to fail or malfunction.

●After installation and wiring, attach the included terminal cover to the module before turning it on for

operation.

Failure to do so may result in electric shock.

CAUTION

●Ground the FG terminal to the protective ground conductor dedicated to the programmable

controller. Failure to do so may result in malfunction.

●Check the rated voltage and terminal layout before wiring the external power supply terminal block,

and connect the cables correctly.

Connecting a power supply with a different voltage rating or incorrect wiring may cause a fire or

failure.

●Use applicable solderless terminals and tighten them within the specified torque range. If any spade

solderless terminal is used, it may be disconnected when the terminal screw comes loose, resulting

in failure.

●Correctly solder coaxial cable connectors. Incomplete soldering may result in malfunction.

●Do not install the control lines or communication cables together with the main circuit lines or power

cables.

Failure to do so may result in malfunction due to noise.

●Place the cables in a duct or clamp them.

If not, dangling cable may swing or inadvertently be pulled, resulting in damage to the module or

cables or malfunction due to poor contact.

●Tighten the terminal screw within the specified torque range.

Undertightening can cause short circuit or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short circuit, fire, or

malfunction.

●When disconnecting the cable from the module, do not pull the cable by the cable part.

For the cable with connector, hold the connector part of the cable.

For the cable connected to the terminal block, loosen the terminal block screws.

Pulling the cable connected to the module may result in malfunction and damage to the module or

cable.

A- 6

[Wiring Precautions]

[Startup and Maintenance Precautions]

CAUTION

●Mitsubishi Electric programmable controllers must be installed in control panels.

Connect the main power supply to the power supply module in the control panel through a relay

terminal block.

Wiring and replacement of a power supply module must be performed by qualified maintenance

personnel with knowledge of protection against electric shock. For wiring methods, refer to the

QCPU User's Manual (Hardware Design, Maintenance and Inspection).

●Prevent foreign matter such as dust or wire chips from entering the module.

Such foreign matter can cause a fire, failure, or malfunction.

●A protective film is attached to the top of the module to prevent foreign matter, such as wire chips,

from entering the module during wiring.

Do not remove the film during wiring.

Remove it for heat dissipation before system operation.

●Use CC-Link dedicated cables for the CC-Link system. If not, the performance of the CC-Link

system is not guaranteed.

For the maximum station-to-station distance and the overall cable distance, follow the specifications

in the following.

If not, normal data transmission will not be guaranteed.

• CC-Link System Master/Local Module User's Manual

WARNING

●Do not touch any terminal while power is on.

Doing so will cause electric shock or malfunction.

●Shut off the external power supply (all phases) used in the system before cleaning the module or

retightening the terminal screws or module fixing screws. Failure to do so may result in electric

shock.

A- 7

[Startup and Maintenance Precautions]

[Disposal Precautions]

CAUTION

●Before performing online operations (especially, program modification, forced output, and operating

status change) for the running CPU module on another station from GX Developer over the

MELSECNET/H network, read relevant manuals carefully and ensure the safety.

Improper operation may damage machines or cause accidents.

●Do not disassemble or modify the modules.

Doing so may cause failure, malfunction, injury, or a fire.

●Use any radio communication device such as a cellular phone or PHS (Personal Handy-phone

System) more than 25cm away in all directions from the programmable controller.

Failure to do so may cause malfunction.

●Shut off the external power supply (all phases) used in the system before mounting or removing a

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

A MELSECNET/H module with function version D or later can be replaced online (while power is on)

on any remote I/O station.

Note that there are restrictions on the modules that can be replaced online, and each module has its

predetermined replacement procedure. For details, refer to the relevant section in the following

manual.

• Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network)

●Do not touch any terminal while power is on.

Doing so will cause malfunction.

●Tighten the module fixing screw and the terminal screw within the specified torque range.

Undertightening can cause drop of the component or wire, short circuit, or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.

●After the first use of the product, do not mount/remove the module to/from the base unit, and the

terminal block to/from the module more than 50 times (IEC 61131-2 compliant) respectively.

Exceeding the limit of 50 times may cause malfunction.

●Before handling the module, touch a grounded metal object to discharge the static electricity from

the human body.

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

CAUTION

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

A- 8

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.

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