Mitsubishi MELSEC QS Series User manual

A- 1

SAFETY PRECAUTIONS

(Always read these instructions before using this equipment.)

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

standard PLC manuals, and the safety standards carefully and pay full attention to safety to handle the

product correctly.

In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".

Note that the CAUTION level may lead to a serious consequence according to the circumstances.

Always follow the instructions of both levels because they are important to personal safety.

Please save this manual to make it accessible when required and always forward it to the end user.

DANGER

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 medium or slight personal injury or physical damage.

A- 2

[Design Precautions]

DANGER

When a safety PLC detects an error in an external power supply or a failure in PLC main module, it

turns off all the outputs.

Create an external circuit to securely stop the power of hazard by turning off the outputs. Incorrect

configuration may result in an accident.

Create short current protection for a safety relay, and a protection circuit such as a fuse, and breaker,

outside a safety PLC.

When data/program change, or status control is performed from a PC to a running safety PLC,

create an interlock circuit outside the sequence program and safety PLC to ensure that the whole

system always operates safely.

For the operations to a safety PLC, pay full attention to safety by reading the relevant manuals

carefully, and establishing the operating procedure.

Furthermore, for the online operations performed from a PC to a safety CPU module, the corrective

actions against a communication error due to a cable connection fault, etc. should be predetermined

as a system.

All output signals from a safety CPU module to the CC-Link Safety system master module are

prohibited to use.

These signals can be found in the CC-Link Safety System Master Module User's Manual.

Do not turn ON or OFF these signals by sequence program, since turning ON/OFF these output

signals of the PLC system may cause malfunctions and safety operation cannot be guaranteed.

When a safety remote I/O module has detected a CC-Link Safety error, it turns off all the outputs.

Note that the outputs in a sequence program are not automatically turned off.

If a CC-Link Safety error has been detected, create a sequence program that turns off the outputs in

the program.

If the CC-Link Safety is restored with the outputs on, it may suddenly operate and result in an

accident.

To inhibit restart without manual operation after safety functions was performed and outputs were

turned OFF, create an interlock program which uses a reset button for restart.

CAUTION

Do not bunch the wires of external devices or communication cables together with the main circuit or

power lines, or install them close to each other. They should be installed 100 mm (3.94 inch) or more

from each other. Not doing so could result in noise that would cause erroneous operation.

A- 3

[Installation Precautions]

[Wiring Precautions]

CAUTION

Use a safety PLC in the environment that meets the general specifications described in this manual.

Using this PLC in an environment outside the range of the general specifications could result in

electric shock, fire, erroneous operation, 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.

Incorrect loading of the module can cause a failure or drop.

Secure the module to the base unit with screws.

Tighten the screw in the specified torque range.

If the screws are too loose, it may cause a drop of the screw or module.

Over tightening may cause a drop due to the damage of the screw or module.

Completely turn off the externally supplied power used in the system before mounting or

removingthe module.

Not doing so could result in damage to the product.

Do not directly touch the module's conductive parts or electronic components.

Doing so may cause malfunctions or a failure.

DANGER

Be sure to shut off all phases of the external supply power used by the system before wiring.

Not completely turning off all power could result in electric shock or damage to the product.

When energizing or operating the module after installation or wiring, be sure to close the attached

terminal cover.

Not doing so may result in electric shock.

A- 4

[Wiring Precautions]

CAUTION

Be sure to ground the FG terminals and LG terminals to the protective ground conductor.

Not doing so could result in electric shock or erroneous operation.

Use a solderless terminal with insulation sleeve for wiring of a terminal block.

Use up to two solderless terminals for a single terminal.

Use applicable solderless terminals and tighten them with the specified torque.

If any solderlessspade terminal is used, it may be disconnected when the terminal screw comes

loose, resultingin failure.

Wire the module correctly after confirming the rated voltage and terminal layout.

Connecting a power supply of a different rated voltage or incorrect wiring may cause a fire or failure.

Tighten a terminal block mounting screw, terminal screw, and module mounting screw within the

specified torque range.

If the terminal block mounting screw or terminal screw is too loose, it may cause a short circuit, fire,

or malfunctions.

If too tight, it may damage the screw and/or the module, resulting in a drop of the screw or module, a

short circuit or malfunctions.

If the module mounting screw is too loose, it may cause a drop of the screw or module.

Over tightening the screw may cause a drop due to the damage of the screw or module.

Be sure there are no foreign substances such as sawdust or wiring debris inside the module.

Such debris could cause a fire, failure, or erroneous operation.

The module has an ingress prevention label on its top to prevent foreign matter, such as wire offcuts,

from entering the module during wiring.

Do not peel this label during wiring. Before starting system operation, be sure to peel this label

because of heat dissipation.

Install our PLC in a control panel for use.

Wire the main power supply to the power supply module installed in a control panel through a

distribution terminal block.

Furthermore, the wiring and replacement of a power supply module have to be performed by a

maintenance worker who acquainted with shock protection.

(For the wiring methods, refer to the QSCPU User's Manual (Hardware Design, Maintenance and

Inspection))

A- 5

[Startup and Maintenance precautions]

DANGER

Do not touch the terminals while power is on.

Doing so could cause shock or erroneous operation.

Correctly connect the battery. Also, do not charge, disassemble, heat, place in fire, short circuit, or

solder the battery.

Mishandling of battery can cause overheating or cracks which could result in injury and fires.

Turn off all phases of the external supply power used in the system when cleaning the module or

retightening the terminal block mounting screws, terminal screws, or module mounting screws.

Not doing so could result in electric shock. Tighten a terminal block mounting screw, terminal screw,

and module mounting screw within the specified torque range.

If the terminal block mounting screw or terminal screw is too loose, it may cause a short circuit, fire,

or malfunctions.

If too tight, it may damage the screw and/or the module, resulting in a drop of the screw or module, a

short circuit or malfunctions.

If the module mounting screw is too loose, it may cause a drop of the screw or module.

Over tightening the screw may cause a drop due to the damage of the screw or module.

A- 6

[Startup and Maintenance precautions]

CAUTION

The online operations performed from a PC to a running safety PLC (Program change when a safety

CPU is RUN, device test, and operating status change such as RUN-STOP switching) have to be

executed after the manual has been carefully read and the safety has been ensured.

Following the operating procedure predetermined at designing, the operation has to be performed by

an instructed person.

When changing a program while a safety CPU is RUN (Write during RUN), it may cause a program

breakdown in some operating conditions.

Fully understand the precautions described in the GX Developer's manual before use.

Do not disassemble or modify the modules.

Doing so could cause a failure, erroneous operation, injury, or fire.

If the product is repaired or remodeled by other than the specified FA centers or us, the warranty is

not covered.

Use any radio communication device such as a cellular phone or a PHS phone more than 25cm(9.85

inch) away in all directions of the PLC.

Not doing so can cause a malfunction.

Completely turn off the externally supplied power used in the system before mounting or

removingthe module.

Not doing so could result in damage to the product.

Restrict the mounting/removal of a module, base unit, and terminal block up to 50 times

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

Failure to do so may cause the module to malfunction due to poor contact of connector.

Do not drop or give an impact to the battery mounted to the module.

Doing so may damage the battery, causing the battery fluid to leak inside the battery.

If the battery is dropped or given an impact, dispose of it without using.

Before touching the module, always touch grounded metal, etc. to discharge static electricity

fromhuman body, etc.

Not doing so can cause the module to fail or malfunction

A- 7

[Disposal Precautions]

[Transportation Precautions]

CAUTION

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

When disposing of batteries, separate them from other wastes according to the local regulations.

(For details of the battery directive in EU member states, refer to QSCPU User's Manual

(HardwareDesign, Maintenance and Inspection).

CAUTION

When transporting lithium batteries, make sure to treat them based on the transport regulations.

(For details of the controlled models, refer to QSCPU User's Manual (Hardware Design,

Maintenance and Inspection).

A- 8

REVISIONS

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

Japanese Manual Version SH-080608-D

2004 MITSUBISHI ELECTRIC CORPORATION

Print Date Manual Number Revision

Sep., 2006 SH(NA)-080627ENG-A First edition

Jun.,2007 SH(NA)-080627ENG-B

Section 3.7.1, 3.7.2, 3.7.3, 4.2.2, 5.3.3, 6.10, 9.1, 9.2, 9.2.4, 9.2.8, 9.5

Apr.,2008 SH(NA)-080627ENG-C

ABOUT MANUALS, GENERIC TERMS AND ABBREVIATIONS, Section 1.1,

2.2, Chapter 3, Section 3.3.1, 3.3.2, 3.4, 4.1, 4.2.1, 4.2.2, 4.3.1, 4.3.2, 4.3.3,

5.3.3, 6.1, 6.2.1, 6.2.4, 6.7, 7.2, Chapter 8, Section 8.1, 8.2, 9.2.1, 9.2.6, 9.2.7,

9.2.11, 9.2.12, 10.1.1, 10.1.2, Appendix 1, Appendix 2, Appendix3, Appendix 5

6.16, 7.3, 7.4, 8.3, Appendix 4, Appendix 6, Appendix 7, Appendix 7.1,

Appendix 7.2, Appendix 8, Appendix 9

Sep.,2008 SH(NA)-080627ENG-D

SAFETY PRECAUTIONS, Appendix 6

Appendix 10

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.

Partial correction

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Partial correction

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