Mitsubishi Electric MELSEC Q Series User manual

Safety Programmable Controller
User's Manual
Safety Relay Module
INDUSTRIAL AUTOMATION
MITSUBISHI ELECTRIC
MITSUBISHI ELECTRIC
01 11 2008
SH(NA)-080746ENG
Version C

A- 1
SAFETY PRECAUTIONS
(Always read these instructions before using this equipment.)
Before using the product, please read this manual, the relevant manuals introduced in this manual,
standard programmable controller 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.
[Design Precautions]
DANGER
A safety relay module turns OFF all outputs by safety input or a failure of external power supply.
Create an external circuit to securely stop the power of hazard by turning OFF the outputs.
Incorrect configuration may result in an accident.
When overcurrent due to such as load short-circuit or load current exceeding the rating flows for a
long time, it may cause smoke or fire. To prevent this, create external safety circuit such as a fuse.
Create short-circuit current protection for a safety relay and a protection circuit such as a fuse and
breaker, outside a safety relay module.
To inhibit a restart without manual operation after safety function of the safety relay module was
performed and outputs were turned OFF, create reset start-up circuit using such as a reset switch
outside the safety relay module.
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]
[Installation Precautions]
CAUTION
The safety category is evaluated by the whole equipment. Make sure that the whole equipment
meets the requirements before use.
Use the programmable controller in an environment that meets the general specifications contained
in this manual.
Using this programmable controller 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.
The life of safety relay used for the safety relay module depends on the open-close condition and
load. Be sure to operate the equipment by use conditions to make sure that the number of allowable
times that the relay opens/closes.
Do not install the wiring of external devices or communication cables together with the main circuit or
power lines, or bring them close to each other. Keep a distance of 100mm (3.94 inch) or more
between them.
Not doing so could result in noise that would cause erroneous operation.
DANGER
Do not use the product in flammable gas atmosphere or explosive gas atmosphere.
Doing so may result in fire or explosion due to such as an arc caused by opening/closing the relays.
CAUTION
For Q series safety relay module, while pressing the module mounting lever located at the bottom of
a module, fully insert the module fixing projection into the fixing hole on the base unit. Then, mount
the module with the fixing hole as a supporting point.
Incorrect loading of the module can cause a malfunction, failure or drop.
When using the programmable controller in the environment of much vibration, tighten the module
with a screw.
Tighten the screw in the specified torque range.
Undertightening can cause a drop, short circuit or malfunction.
Overtightening can cause a drop, short circuit or malfunction due to damage to the screw or module.
Make sure to fix CC-Link safety relay module and extension safety relay module with a DIN rail fixing
bracket.

A- 3
[Installation Precautions]
[Wiring Precautions]
CAUTION
Be sure to shut off all phases of the external supply power used by the system before mounting/
removing a module.
Not doing so may result in damage to the product.
When mounting a module, make room for 5cm (1.97 inch) or more at above and below of the module
for ventilation.
When powering ON a contact at 3A or more consecutively, make room for 5mm (0.20 inch) or more at
the sides of the contact for ventilation.
Do not directly touch the module's conductive parts or electronic components.
Doing so may cause malfunctions or a failure.
Securely connect connectors for each cable to the applied parts.
Not doing so may cause a malfunction due to poor connection.
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
CAUTION
Ground the FG and LG terminals correctly.
Not doing so could result in electric shock or malfunctions.
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.
Be sure there are no foreign substances such as sawdust or wiring debris inside the module.
Such debris could cause a fire, failure, or malfunctions.
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 to fix the communication cables or power cables by ducts or clamps when connecting them
to the module.
Failure to do so may cause damage of the module or cables due to a wobble, unintentional shifting,
or accidental pull of the cables, or malfunctions due to poor contact of the cable.

A- 5
[Wiring Precautions]
[Startup and Maintenance Precautions]
CAUTION
When removing the connected communication cables or power cables, do not pull the cable with
grasping the cable part.
Remove the cable connected to the terminal block after loosening the terminal block screws.
Pulling the cable connected to a module may result in malfunctions or damage of the module or
cable.
Use applicable solderless terminals and crimp them with a tool specified by maker.
Imperfect connections could result in short circuit, fires, or erroneous operation.
A protective film is attached to the top of the Q series safety relay module to prevent foreign matter
such as wire chips 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 programmable controller in a control panel complying with the IP standard of 54 or more.
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 wiring method, refer to the QCPU User's Manual (Hardware Design, Maintenance and
Inspection).
Do not install the control lines together with the communication cables or bring them close to each
other.
Doing so may cause a malfunction due to noise.
DANGER
Do not touch the terminals while power is on.
Doing so could result in electric shock.
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 and module mounting screw within the specified torque
range.
If the terminal block mounting 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]
[Disposal Precautions]
CAUTION
Do not disassemble or remodel the module. Doing so could cause a failure, malfunctions, injury, or
fire.
If the product is repaired or remodeled by other than the specified FA centers or us, the warranty is
not covered.
A electric fuse for overcurrent prevention is incorporated in the control circuit part of the safety relay
module.
If the electric fuse operates, power OFF the module once, and power it ON again after resolving the
failure.
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.
Since the module case is made of resin, do not drop or apply any strong impact to the module.
Doing so may damage the module.
Completely turn off the externally supplied power used in the system before mounting or removing
the module to/from the panel.
Not doing so may result in a failure or malfunctions of the module.
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 programmable controller.
Not doing so can cause a malfunction.
Before touching the module, always touch grounded metal, etc. to discharge static electricity from
human body, etc.
Not doing so can cause the module to fail or malfunction.
CAUTION
When disposing of this product, treat it as industrial waste.

A- 7
REVISIONS
* The manual number is given on the bottom left of the back cover.
Japanese Manual Version SH-080745-C
2008 MITSUBISHI ELECTRIC CORPORATION
Print date *Manual number Revision
Apr., 2008 SH(NA)-080746ENG-A First edition
Jun., 2008 SH(NA)-080746ENG-B
COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES,
Section 5.1.1, 5.1.4, 5.2.1, 5.3.1, 6.1.2, 6.2.2, 6.3.2
Nov., 2008 SH(NA)-080746ENG-C
Section 3.1, 3.2.2, 3.4.1, 5.4.1, 5.4.7
This manual confers no industrial property rights or any rights of any other kind, nor does it confer any 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 corrections
Partial corrections