Mitsubishi Electric MELSEC L series Manual de usuario

MELSEC-L CC-Link IE Field Network

Head Module User's Manual

-LJ72GF15-T2

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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.

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.

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[Design Precautions]

WARNING

●Configure safety circuits external to the programmable controller to ensure that the entire system

operates safely even when a fault occurs in the external power supply or the programmable controller.

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

(1) Emergency stop circuits, protection circuits, and protective interlock circuits for conflicting

operations (such as forward/reverse rotations or upper/lower limit positioning) must be configured

external to the programmable controller.

(2) When the programmable controller detects an abnormal condition, it stops the operation and all

outputs are:

• Turned off if the overcurrent or overvoltage protection of the power supply module is activated.

• Held or turned off according to the parameter setting if the self-diagnostic function of the head

module detects an error such as a watchdog timer error.

Also, all outputs may be turned on if an error occurs in a part, such as an I/O control part, where

the head module cannot detect any error. To ensure safety operation in such a case, provide a

safety mechanism or a fail-safe circuit external to the programmable controller. For a fail-safe

circuit example, refer to Page 150, Appendix 10.

(3) Outputs may remain on or off due to a failure of a component such as a relay and transistor in an

output circuit. Configure an external circuit for monitoring output signals that could cause a

serious accident.

●In an output circuit, when a load current exceeding the rated current or an overcurrent caused by a

load short-circuit flows for a long time, it may cause smoke and fire. To prevent this, configure an

external safety circuit, such as a fuse.

●Configure a circuit so that the programmable controller is turned on first and then the external power

supply. If the external power supply is turned on first, an accident may occur due to an incorrect output

or malfunction.

●Configure a circuit so that the external power supply is turned off first and then the programmable

controller. If the programmable controller is turned off first, an accident may occur due to an incorrect

output or malfunction.

●For the operating status of each station after a communication failure, refer to relevant manuals for

each network. Incorrect output or malfunction due to a communication failure may result in an

accident.

●When changing data from a peripheral device connected to the head module during operation,

configure an interlock circuit in the program of the master station to ensure that the entire system will

always operate safely.

For other controls to a running programmable controller (such as modification of the master station

program or operating status change), read relevant manuals carefully and ensure the safety before

the operation. 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 of the master

station, and determine corrective actions to be taken between the external device and head module in

case of a communication failure.

●Analog outputs may remain on due to a failure of the module. Configure an external interlock circuit

for output signals that could cause a serious accident.

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[Design Precautions]

[Installation Precautions]

WARNING

●Do not write any data to the "system area" and "write-protect area" (R) of the buffer memory in the

intelligent function module. Also, do not use any "use prohibited" signals as an output signal from the

head module to the intelligent function module. Doing so may cause malfunction of the programmable

controller system.

●If a communication cable (such as 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.

CAUTION

●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.

●During control of an inductive load such as a lamp, heater, or solenoid valve, a large current

(approximately ten times greater than normal) may flow when the output is turned from off to on.

Therefore, use a module that has a sufficient current rating.

●At power-on, a voltage may occur or a current may flow between output terminals of the analog output

module for a moment. In this case, start the control after analog outputs become stable.

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 head module in an environment that meets the general specifications in this manual. Failure

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

●To interconnect modules, engage the respective connectors and securely lock the module joint levers

until they click. Incorrect interconnection may cause malfunction, failure, or drop of the module.

●Tighten the screws 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.

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

cause malfunction or failure of the module.

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[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

●Individually ground the FG terminal of the programmable controller with a ground resistance of 100

or less. Failure to do so may result in electric shock or malfunction.

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

solderless terminal is used, it may be disconnected when a terminal block screw comes loose,

resulting in failure.

●Check the rated voltage and terminal layout before wiring to the module, and connect the cables

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

or failure.

●Connectors for external devices must be crimped or pressed with the tool specified by the

manufacturer, or must be correctly soldered. Incomplete connections may cause short circuit, fire, or

malfunction.

●Securely connect the connector to 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.

●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.

●Check the interface type and correctly connect the cable. Incorrect wiring (connecting the cable to an

incorrect interface) may cause failure of the module and external device.

●Tighten the terminal block screws within the specified torque range. Undertightening can cause short

circuit, fire, 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 screw. Pulling the cable connected to the module may result in malfunction or

damage to the module or cable.

●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.

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[Wiring Precautions]

[Startup and Maintenance Precautions]

CAUTION

●When connecting a CC-Link system master/local module to the head module, use CC-Link dedicated

cables for the CC-Link system. If not, the performance of the CC-Link system is not guaranteed. For

the station-to-station cable length and the maximum overall cable length, follow the specifications in

the MELSEC-L CC-Link System Master/Local Module User's Manual. If not, normal data transmission

is not guaranteed.

●When the high-speed counter module is connected to the head module, ground the shield cable on

the encoder side (relay box). Always ground the FG and LG terminals to the protective ground

conductor. Failure to do so may cause malfunction.

●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 MELSEC-L CPU

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

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 block screws or connector screws. Failure to do so may result in electric

shock.

CAUTION

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

status change) for the running head module from the peripheral connected, read relevant manuals

carefully and ensure the safety. Improper operation may damage machines or cause accidents.

●Do not disassemble or modify the module. 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.

●Tighten the terminal block screws or connector screws within the specified torque range.

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

●After the first use of the product (module and terminal block), do not connect/disconnect the product

more than 50 times (in accordance with IEC 61131-2). Exceeding the limit may cause malfunction.

●Before handling the module, touch a conducting object such as a grounded metal to discharge the

static electricity from the human body. Failure to do so may cause the module to fail or malfunction.

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[Operating Precautions]

[Disposal Precautions]

CAUTION

●When changing data and operating status, and modifying program of the running programmable

controller from an external device such as a personal computer connected to an intelligent function

module, read relevant manuals carefully and ensure the safety before operation. Incorrect change or

modification may cause system malfunction, damage to the machines, or accidents.

●Do not power off the programmable controller or reset the head module while the setting values in the

buffer memory are being written to the flash ROM in the module connected to the head module. Doing

so will make the data in the flash ROM undefined. The values need to be set in the buffer memory and

written to the flash ROM again. Doing so also may cause malfunction or failure of the module.

CAUTION

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

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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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INTRODUCTION

Thank you for purchasing the Mitsubishi Electric MELSEC-L series programmable controllers.

This manual describes the operating procedure, system configuration, parameter setting, functions, and

troubleshooting of the CC-Link IE Field Network head module (hereafter abbreviated as head module).

Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the

functions and performance of the MELSEC-L series programmable controller to handle the product correctly.

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