Mitsubishi Electric MELSENSOR MELSEC iQ-R MH11H01A0SNA User manual

MELSEC iQ-R Laser Displacement Sensor
Control Module User's Manual (Sensor Head)
-MH11H01A0SNA -MH11H01A0LNA
-MH11H01A1SNA -MH11H01A1LNA
-MH11H01A2SNA -MH11H01A2LNA
-MH11H03B0SNA -MH11H03B0LNA
-MH11H05B0SNA -MH11H05B0LNA
-MH11H05C0SNA -MH11H05C0LNA
-MH11H08B0SNA -MH11H08B0LNA
-MH11H08C0SNA -MH11H08C0LNA
-MH11H11B0SNA -MH11H11B0LNA
-MH11H35C3SNA -MH11H11C0LNA
-MH11H11C0SNA -MH11H35B0LNA
-MH11H35B0SNA -MH11H35C0LNA
-MH11H35C0SNA -MH11H35C3LNA

1
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
This product is intended to detect an object and does not have the control function to ensure safety such as accident
prevention.
Do not use this product as a safeguard that senses the presence of a person. Doing so may result in an accident due to an
incorrect output or malfunction.
To protect the human body, use a product that complies with local laws and standards such as OSHA, ANSI, and IEC.
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 precautions given in this manual are concerned with this product only. For the safety precautions of the programmable
controller system, refer to the MELSEC iQ-R Module Configuration Manual.
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 Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

2
[Precautions for Using Laser Products]
WARNING
●The laser products use semiconductor laser light sources. When handling laser products, observe the
following because human access to laser radiation may result in injury.
(1) Do not disassemble the laser products. Doing so may result in exposure to laser radiation.
(2) Shut off the external power supply (all phases) to stop laser emission before replacing a failed
laser product or changing the layout.
●Observe the following handling precautions for the laser products in each class.
(1) Class 3R laser products
• Do not aim the laser beam at people.
• Do not directly look at or come in contact with the laser beam and its reflection from a specular
surface (such as a mirror). In addition, never look at the beam and its reflection through optical
instruments (such as a microscope and a telescope).
• Shorten the beam paths as much as possible to prevent diffusion of laser beams. Terminate the
laser beams at the end of their paths by diffusely reflecting materials of appropriate reflectivity
and thermal properties or by absorbers.
• Locate the beam path above or below the eye level. Wearing protective eyewear is
recommended when handling the laser products.
• Install the laser products carefully so that the laser beam is not unintentionally reflected from
specular surfaces.
(2) Class 2 laser products
• Do not aim the laser beam at people.
• Do not stare into the laser beam and its reflection from specular surfaces.
• To prevent exposure to laser radiation (specularly or diffusely reflected laser beams), install a
protective enclosure with an appropriate reflectance.
• Locate the beam path above or below the eye level.
(3) Class 1 laser products
• Do not stare into the laser beam and its reflection from specular surfaces.

3
[Design Precautions]
[Design Precautions]
[Installation Precautions]
[Installation Precautions]
WARNING
●Provide safety measures such as a dual safety mechanism when the module is used for applications
that have the possibility of causing physical injury or serious damage.
●If a communication 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. Incorrect output or malfunction due to a
communication failure may result in an accident.
CAUTION
●Do not use the laser displacement sensor outside of its specifications (such as ratings or
environments). Doing so may result in overheating or smoke.
●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.
●Do not power off the programmable controller or reset the CPU module while the settings are being
written. Doing so will make the data in the flash ROM and SD memory card undefined. The values
need to be set in the buffer memory and written to the flash ROM and SD memory card again. Doing
so also may cause malfunction or failure of the module.
●Do not disassemble or modify this product. Doing so may cause failure, malfunction, injury, or a fire.
●Clamp cables securely with the terminal screws. Incomplete connections may cause overheating or
smoke.
●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●Do not open the covers on the back and the bottom of the product. Doing so may cause malfunction
or failure.
WARNING
●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 electric shock or cause the module to fail or malfunction.
CAUTION
●Use this product 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.
●When using the programmable controller in an environment of frequent vibrations, fix the module with
a screw.
●Do not directly touch any conductive parts of connectors on the modules. Doing so can cause
malfunction or failure of the module.

4
[Wiring Precautions]
[Wiring Precautions]
WARNING
●Shut off the external power supply (all phases) used in the system before installation and wiring.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
CAUTION
●Individually ground the FG and LG terminals of the programmable controller with a ground resistance
of 100 ohms or less. Failure to do so may result in electric shock or malfunction.
●Check the rated voltage and signal 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 fire
or failure.
●Securely connect the connector to the module. Poor contact may cause malfunction.
●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 cables may swing or inadvertently be pulled,
resulting in malfunction or damage to modules or cables.
In addition, the weight of the cables may put stress on modules in an environment of strong vibrations
and shocks.
Do not clamp the extension cables with the jacket stripped. Doing so may change the characteristics
of the cables, resulting in malfunction.
●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.
●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.
●Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
●Do not apply the 24VDC power before connecting a sensor head. If the power is applied before wiring,
normal data transmission is not guaranteed.

5
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
[Operating Precautions]
[Disposal Precautions]
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 connector screws or module fixing screws. Failure to do so may result in electric
shock.
●For the operating status of each station after a communication failure, refer to manuals relevant to the
network. Incorrect output or malfunction due to a communication failure may result in an accident.
CAUTION
●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 the
module. Failure to do so may cause the module to fail or malfunction.
●Startup and maintenance of a control panel must be performed by qualified maintenance personnel
with knowledge of protection against electric shock. Lock the control panel so that only qualified
maintenance personnel can operate it.
●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.
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 CPU module while the setting values in the
buffer memory are being written to the flash ROM in the module. Doing so will make the data in the
flash ROM and SD memory card undefined. The values need to be set in the buffer memory and
written to the flash ROM and SD memory card again. Doing so can cause malfunction or failure of the
module.
CAUTION
●When disposing of this product, treat it as industrial waste.

6
[Transportation Precautions]
CAUTION
●The halogens (such as fluorine, chlorine, bromine, and iodine), which are contained in a fumigant
used for disinfection and pest control of wood packaging materials, may cause failure of the product.
Prevent the entry of fumigant residues into the product or consider other methods (such as heat
treatment) instead of fumigation. The disinfection and pest control measures must be applied to
unprocessed raw wood.

7
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi's laser displacement sensor must be used in applications which do not lead to serious accidents even in
cases where failure/nonconformity was unlikely to occur in the laser displacement sensor, as well as, application which
execute backup and failsafe functions in systems through external devices when a failure or defect has occurred.
(2) Mitsubishi's laser displacement sensor was designed/manufactured as a general-purpose product which was designed
for use in general industries, etc. Accordingly, the applications of Mitsubishi's laser displacement sensor shall be
exempt for usage in special applications such as devices and systems as stated below. In the unlikely event that it is
used, we bare no responsibility (includes, but is not limited to debt defaults, defective warranty, QA, illegal acts, and
product liabilities) for the quality performance, and safety of Mitsubishi's laser displacement sensor.
• Large applications which greatly affect the public such as, nuclear power plants operated by each power company and
other nuclear power plants
• Application which request Mitsubishi to construct special QA structures such as railway companies and government
offices.
• Application such as aerospace, medicine, railway, combustion-fuel system, passenger cars, manned transfer
equipment, entertainment devices, and safety devices that are expected to greatly affect lives, the body and
properties
Mitsubishi's information desk should be contacted for more information as the laser displacement sensor may be
applicable at the discretion of Mitsubishi, on the condition that the application is strictly limited and special qualities
(exceeding the general specifications, etc.) are not required even in the above applications.

8
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC iQ-R series programmable controllers.
This manual describes the installation methods, specifications, and maintenance and inspection of the relevant products listed
below.
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the MELSEC iQ-R series programmable controller to handle the product correctly.
Please make sure that the end users read this manual.
Relevant products
■Sensor head
MH11H01A0SNA, MH11H01A1SNA, MH11H01A2SNA, MH11H03B0SNA, MH11H05B0SNA, MH11H05C0SNA,
MH11H08B0SNA, MH11H08C0SNA, MH11H11B0SNA, MH11H11C0SNA, MH11H35B0SNA, MH11H35C0SNA,
MH11H35C3SNA, MH11H01A0LNA, MH11H01A1LNA, MH11H01A2LNA, MH11H03B0LNA, MH11H05B0LNA,
MH11H05C0LNA, MH11H08B0LNA, MH11H08C0LNA, MH11H11B0LNA, MH11H11C0LNA, MH11H35B0LNA,
MH11H35C0LNA, MH11H35C3LNA