THK CMX User manual

INSTRUCTION MANUAL
CMX
THK Electrical Actuator Precision Stage Series
Alignment Stage
No.238M-1(0)E
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Table of Contents
i
CMX
1. Introduction 1-1
1-1 Acknowledgment-------------------------------------------------------------------------------------------------------------------- 1-1
1-2 About this manual------------------------------------------------------------------------------------------------------------------- 1-1
1-3 How to use this product-------------------------------------------------------------------------------------------------------- 1-2
1-4 About product support---------------------------------------------------------------------------------------------------------- 1-2
1-5 Product and company information------------------------------------------------------------------------------------- 1-2
2. Safety Precautions 2-1
2-1 Warning indications on safety --------------------------------------------------------------------------------------------- 2-1
2-2 Safety precautions ----------------------------------------------------------------------------------------------------------------- 2-1
3. Structure and Model Numbers 3-1
3-1 Structure and part names----------------------------------------------------------------------------------------------------- 3-1
3-2 System configuration------------------------------------------------------------------------------------------------------------- 3-2
3-3 Model configuration --------------------------------------------------------------------------------------------------------------- 3-2
4. Storage and Transportation 4-1
4-1 Precautions to be observed for safe use-------------------------------------------------------------------------- 4-1
4-2 Precautions to be observed for prevention of product fault or fracture-------------------- 4-2
5. Installation and Operation 5-1
5-1 Precautions to be observed for safe use-------------------------------------------------------------------------- 5-1
5-2 Precautions to be observed for prevention of product fault or fracture-------------------- 5-2
5-3 Other precautions------------------------------------------------------------------------------------------------------------------- 5-4
5-4 Mounting method ------------------------------------------------------------------------------------------------------------------- 5-5
6. Maintenance 6-1
6-1 Precautions to be observed for safe use-------------------------------------------------------------------------- 6-1
6-2 Precautions to be observed for prevention of product fault or fracture-------------------- 6-1
6-3 Daily inspection----------------------------------------------------------------------------------------------------------------------- 6-2
6-4 Periodical inspection ------------------------------------------------------------------------------------------------------------- 6-2
6-5 Lubrication ------------------------------------------------------------------------------------------------------------------------------- 6-2
6-6 Method for supplying grease----------------------------------------------------------------------------------------------- 6-5
6-7 Free warranty period-------------------------------------------------------------------------------------------------------------- 6-6
6-8 Usage conditions (range)------------------------------------------------------------------------------------------------------ 6-6
6-9 Warranty scope ----------------------------------------------------------------------------------------------------------------------- 6-6
6-10 Exclusion of warranty liability ---------------------------------------------------------------------------------------------- 6-7
6-11 Delivery conditions----------------------------------------------------------------------------------------------------------------- 6-7
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Table of Contents
ii
CMX
7. Appendix 7-1
7-1 Basic static load rating and static permissible moment ----------------------------------------------- 7-1
7-2 Maximum speed --------------------------------------------------------------------------------------------------------------------- 7-2
7-3 Permissible input torque------------------------------------------------------------------------------------------------------- 7-2
7-4 Motor selection ----------------------------------------------------------------------------------------------------------------------- 7-3
7-5 Calculation of the service life----------------------------------------------------------------------------------------------- 7-4
7-6 Mounting position of hanger and fixtures used for transportation----------------------------- 7-5
7-7 Introduction of the grease ---------------------------------------------------------------------------------------------------- 7-6
7-8 Introduction of the grease gun unit ------------------------------------------------------------------------------------ 7-7
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1-1
CMX
1. Introduction
1.
Introduction
1-1 Acknowledgment
Thank you for purchasing the Alignment Stage CMX.
This is an ultra-slim XY θ stage with drive modules positioned on a single surface.
We hope our creative inventions and unique technologies contribute to your further prosperity.
1-2 About this manual
1-2-1 Intended audience
The person in charge of designing embedded systems of the product and installing, wiring, and
maintaining the product, and the person who actually uses the product.
1-2-2 Using this manual
This manual describes correct handling methods and precautions for the product.
For the maximum performance and long life of the product, carefully read and understand this
manual to safely and correctly use the product.
If you use the printed version of this manual, be sure to keep it in the place that the audience can
refer to it when needed.
1-2-3 Notice and attention
●Do not use or handle the product in the ways that are not described in this manual.
●Do not reproduce, reprint, or lend the whole contents or a part of this manual without permission.
●Please note that the description in this manual is subject to change without prior notice in the
future, due to improvements of the product or other reasons.
●We have made all possible efforts to make the content of this manual accurate. However, if you
find any mistake or uncertainty in this manual, please contact THK.
●Drawings throughout this manual are only intended as typical examples, and may differ from your
product.
●Note that THK shall not be liable for any result incurred by applying this manual, regardless of the
reason.
●This manual is also applied to custom products. However, the descriptions provided in the
delivery specification drawings or delivery specification documents of those custom products
take precedence over this manual.
* Custom products represent the products that have different materials and specifications from
those of the standard products on catalogs.
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1-2
CMX
1. Introduction
1-3 How to use this product
●This product must not be used for the devices or systems that are used under the situations that
may be fatal to human life.
●If you consider using this product for special applications such as passenger movement vehicle,
medical, aerospace, nuclear power, and electric power devices or systems, be sure to consult
with THK in advance.
●This product is manufactured under the strict quality control, however, that does not mean
that the product is free from failure. For applications to the equipment that may suffer serious
accidents or loss from the failure of this product, install safety devices or backup devices that
prevent such serious accidents or loss.
1-4 About product support
We have made all possible efforts to make the content of this manual accurate. However, if you find
any mistake or uncertainty in this manual, please contact THK.
For the following information, please contact THK.
●Technical support for this product
1-5 Product and company information
To find the latest product and company information, we recommend you to periodically access our
website.
●Website URL: https://www.thk.com/
●THK technical support website: https://tech.thk.com/
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2-1
CMX
2. Safety Precautions
2-2 Safety precautions
This section describes important precautions that you must observe.
■General
⿟While this product is operating or operable, for example, when the motor is energized,
do not enter the working area of any moving part.
Otherwise, it may cause you to touch the moving part, leading to injury.
⿟While the motor or sensor is energized, do not move or install this product.
Otherwise, it may cause electric shocks, or cause malfunction that could lead to injury.
■Installation and operation
⿟Wire and connect the electric components correctly and securely.
Failure to do so may cause fire and electric shocks, or may cause abnormal operation that could
lead to injury, fault or fracture.
⿟If any moving part may fall by its own weight in vertical application or the like, provide
a safeguard for preventing the part from falling.
If any moving part falls, it may cause injury or damage.
⿟While this product is operating, do not touch any moving part or rotating part.
Otherwise, it may cause your hand to be caught and injured.
Warning
2-1 Warning indications on safety
This manual uses the following warning indications according to safety matters. The descriptions
next to warning indications on safety are important messages. Be sure to observe those
descriptions.
Warning
“Erroneous handling may cause death or serious injury
to a person”
Caution
“Erroneous handling may cause injury to a person or
property damage only”
“Prohibitions (don’t)”
“Obligations (do)”
2.
Safety Precautions
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2-2
CMX
2. Safety Precautions
■General
⿟Do not stand on this product or the packaging box.
Otherwise, it may cause fault or damage, or cause falling that could lead to injury.
⿟Do not impact this product.
Otherwise, it may cause fault or damage, or injure you.
⿟Do not apply a load that exceeds the permissible level.
Otherwise, it may cause fault or damage, or cause abnormal operation that could lead to injury.
* For your reference, see the general catalog of electric actuators, which contains the payload,
and the Appendix, which contains the static permissible moment and permissible input torque.
⿟Do not disassemble or alter this product.
Otherwise, it may cause foreign material to enter the product, which could result in fault or
adversely affect the performance or service life. Or it may cause abnormal operation that could
lead to injury. * If you wish to disassemble or alter the product, contact THK.
■Unpacking
⿟Be careful not to hit your hands or body against protruded parts.
Otherwise, it may cause injury, or cause fault or fracture of the product.
⿟Check whether the delivered product is the product you ordered.
Using a wrong product may cause malfunction that could lead to injury or fault.
* In the packaging box, an accuracy inspection report is attached.
⿟Check whether the product has any fractured parts.
Using a fractured product may cause injury or fault.
* If you find any defect, contact our Sales Division.
Caution
2.
Safety Precautions
■Transportation
⿟To transport this product, hang the base at the specied position using a hanger.
Failure to do so may cause fire and electric shocks, or may cause abnormal operation that could
lead to injury, fault or fracture.
Note) This hanging work must be carried out only by the qualied personnel wearing
the protective equipment such as helmets and safety shoes.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the product.
* Also see the appendix, which contains the hanger mounting positions.
* The hanger that comes with the product does not support the weight of any other products.
When you attach your devices or parts to this product, install a separate hanger.
■Maintenance
⿟Turn off the machine (turning power off) before conducting any maintenance.
Otherwise, it may cause electric shocks, or cause malfunction that could lead to injury.
⿟If two or more people are involved in the operation, conrm the procedures such as
sequences, signs, and abnormalities in advance, and appoint another person for monitoring
the operation.
Failure to do so may cause an unexpected accident.
Warning
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2-3
CMX
2. Safety Precautions
2. Safety Precautions
■Transportation
⿟Do not drop or hit this product.
Otherwise, it may cause injury or fracture, or a functional loss.
⿟When transporting this product, do not hoist or hold any moving part.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
⿟When transporting this product, do not hold the motor, the sensor or the cable.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
⿟When transporting the product, secure the moving parts with the attached xtures
used for transportation.
Otherwise, it may cause the product to fall or allow contact with the moving parts, leading to
injury, or cause fault or fracture of the product.
* Also see the appendix, which contains the fixing bracket mounting positions.
* The product’s fixing brackets do not support the weight of any other products. When you
attach your devices or parts to this product, secure them separately for transportation so that
the moving parts do not move.
⿟When lifting this product, hold the bottom face of the base. Most models of this
product are heavy articles (20 kg or heavier). Two or more people should hold the
product as necessary.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
* For more information on the weight of the product, see the general catalog of electric actuators.
■Installation and operation
⿟Firmly secure this product before operating it.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟Remove the hanger and xtures for moving parts used for transportation before
operating this product.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
* Also see the appendix, which contains the fixing bracket mounting positions.
⿟Pay attention to avoid applying the tension or bending to cables.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟If anomaly occurs, immediately stop the machine.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟Do not exceed the maximum speed when using the product.
Otherwise, it may cause fault or damage, or cause abnormal operation that could lead to injury.
For your reference, see the specification (→P.4-1), which contains the maximum speed for each
model number at each stroke.
⿟Do not use the failed and broken product.
Otherwise, it may cause injury or machine failure.
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3-1
CMX
3. Structure and Model Numbers
3-1 Structure and part names
The name of each part of this product is shown in Fig. 1.
Ball screw
Cross LM Guide
Stopper
Cross-Roller Ring
Base
Sensor
Motor
Motor bracket
Coupling
Table Drive module
Fig. 1 Structure and part names of the alignment stage
* For details such as the dimensions and accuracy, see the delivery specification drawings or
general catalog of electrical actuators.
If you have any question, contact THK.
3.
Structure and Model Numbers
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3-2
CMX
3. Structure and Model Numbers
3.
Structure and Model Numbers
3-2 System configuration
Fig. 2 shows a system configuration example.
Driver
Positioning
controller
Alignment
stage
Cable between driver and
controller
Encoder cable
Power
cable
Sensor cable
Fig. 2 System conguration
* Such parts as motor, driver, power cable between motor and driver (red solid line), and encoder
cable (blue solid line) (each cable is 3 m) come with the product.
* Please prepare separately the positioning controller, upper-level sequencer and sensor cable (green
dotted line), and cable between driver and controller (orange dotted line).
* The EE-1001 connectors for the photomicro sensors are accessories.
* For more information on the driver and the controller power sources and ground wiring etc., see
the relevant instruction manuals.
3-3 Model configuration
The following is an example of model number coding.
■Alignment Stage
CMX2-040
(1) Model number
(2) Top table dimensions 040: 400 mm x 400 mm
* For details, see the general catalog of the electric actuators.
(1) (2)
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4-1
CMX
4. Storage and Transportation
4-1 Precautions to be observed for safe use
⿟Do not drop or hit this product.
Otherwise, it may cause injury or fracture, or a functional loss.
⿟When transporting this product, do not hoist or hold any moving part.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
⿟When transporting this product, do not hold the motor, the sensor or the cable.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
⿟When transporting the product, secure the moving parts with the attached xtures used
for transportation.
Otherwise, it may cause the product to fall or allow contact with the moving parts, leading to injury,
or cause fault or fracture of the product.
* Also see the appendix, which contains the fixing bracket mounting positions.
* The product’s fixtures used for transportation do not support the weight of any other products.
When you attach your devices or parts to this product, secure them separately for transportation
so that the moving parts do not move.
⿟When lifting this product, hold the bottom face of the base. Most models of this product
are heavy articles (20 kg or heavier). Two or more people should hold the product as
necessary.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
* For more information on the weight of the product, see the general catalog of electric actuators.
Caution
4.
Storage and Transportation
⿟To transport this product, hang the base at the specied position using a hanger.
Note) This hanging work must be carried out only by the qualied personnel wearing
the protective equipment such as helmets and safety shoes.
Otherwise, it may cause the product to fall, leading to injury, or cause fault or fracture of the
product.
* Also see the appendix, which contains the hanger mounting positions.
* The hanger that comes with the product does not support the weight of any other products.
When you attach your devices or parts to this product, install a separate hanger.
Warning
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4-2
CMX
4. Storage and Transportation
4.
Storage and Transportation
4-2 Precautions to be observed for prevention of product fault or fracture
⿟Since using an adverse storage environment may cause fault, store the product in the
environment described below:
∙A place at ambient temperature within the following storage temperature range
Storage temperature: -10°C to 50°C (no freezing or condensation, main unit only)
* With the packaging unopened
∙A place with no sudden temperature change
∙A place with non-corrosive gas nor flammable gas
∙A place with little dust, salt or metallic powder
∙A place with no exposure to water, oil or chemicals
∙A place where no direct sunlight nor radiation heat reaches
∙A place where no strong electric field nor strong magnetic field develops
∙A place where a vibration or shock does not transmit to the main unit
⿟This product is provided with antirust treatment and sealed before being packed.
When storing the product, enclose it in a package designated by THK and store it in
a horizontal orientation while avoiding high temperature, low temperature and high
humidity.
⿟Do not apply an excessive load on the package, otherwise, it may cause fault or fracture.
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5-1
CMX
5. Installation and Operation
5.
Installation and Operation
5-1 Precautions to be observed for safe use
⿟Wire and connect the electric components correctly and securely.
Failure to do so may cause fire and electric shocks, or may cause malfunction that could lead to
injury, fault or fracture.
⿟If any moving part may fall by its own weight in vertical application or the like, provide a
safeguard for preventing the part from falling.
If any moving part falls, it may cause injury or damage.
⿟While this product is operating, do not touch any moving part or rotating part.
Otherwise, it may cause your hand to be caught and injured.
⿟Firmly secure this product before operating it.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟Remove the xtures for moving parts used for transportation before operating the
product.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
* Also see the appendix, which contains the fixing bracket mounting positions.
⿟Pay attention to avoid applying the tension or bending to cables.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟If anomaly occurs, immediately stop the machine.
Failure to do so may cause abnormal operation that could cause injury, fault or fracture.
⿟Do not exceed the maximum speed when using the product.
Otherwise, it may cause fault or damage,or cause abnormal operation that could lead to injury.
* Also see the appendix, which contains the maximum speed. If exceeding the maximum speed in
use, contact THK.
⿟Do not use the failed and broken product.
Otherwise, it may cause injury or machine failure.
Caution
Warning
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5-2
CMX
5. Installation and Operation
5.
Installation and Operation
5. Installation and Operation
5-2 Precautions to be observed for prevention of product fault or fracture
⿟Since using an adverse service environment may cause fault, use the product in the
environment described below.
∙A place within the following operating temperature range
Operating temperature: 0°C to 40°C (ambient humidity less than 85% RH, no freezing or
condensation)
* The accuracy of this product is the value at 20 ±2°C. When used at other than 20 ±2°C, the
accuracy may vary.
* If you desire to use the product in a special environment or outside of the operating
temperature range, contact THK.
∙A place with no sudden temperature change
∙A place with non-corrosive gas nor flammable gas
∙A place with no floating of dust, salt or metallic powder
∙A place with no exposure to water, oil or chemicals
∙A place where no direct sunlight, ultraviolet rays, nor radiation heat reaches
∙A place where no strong electric field nor strong magnetic field develops
∙A place where a vibration or shock does not transmit to the main unit
⿟Standard models of this product are designed based on use in a horizontal position. Use
in other positions may or may not be possible depending on the conditions. Contact THK
for details.
Use of standard models in other than horizontal positions may cause faults or adversely affect the
performance or the service life.
* When the standard model cannot be used, contact THK for custom products.
⿟Prevent foreign material such as dust or metallic powder from entering the LM guide or
ball screw, as it may cause abnormal wear or shorten the service life.
If foreign material enter the product, take a dustproof measure that matches the service
atmosphere.
⿟Use the product within the accuracy-guaranteed stroke range. See Table 1 for details.
Model Stroke between mecha stoppers Accuracy-guaranteed stroke
X (mm) Y (mm)
θ (°) X (mm) Y (mm) θ (°)
CMX1-025 ±5 ±5 ±3 ±4 ±4 -
CMX1-035 ±5 ±5 ±2 ±4 ±4 -
CMX2-040 ±10 ±10 ±3.5 ±8 ±8 -
CMX2-050 ±10 ±10 ±2.5 ±8 ±8 -
CMX2-075 ±10 ±10 ±1.5 ±8 ±8 -
CMX3-100 ±15 ±15 ±2 ±12 ±12 -
CMX3-150 ±15 ±15 ±1 ±12 ±12 -
* The θ stroke is the value when the table is at the center of the X and Y axes.
Table 1 Stroke between mecha stoppers and accuracy-guaranteed stroke
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5-3
CMX
5. Installation and Operation
5.
Installation and Operation
5. Installation and Operation
⿟The mounting surface for this product must be a machined plane or have the accuracy
equivalent to the machined plane. If the surface is insufciently accurate, it may
adversely affect the performance or the service life. In addition, be sure to mount the
product on a sufciently rigid base.
* This product has been measured for accuracy on a JIS grade 0 equivalent surface plate. When
all accuracies are required, we recommend the flatness in Table 2
Model Recommended flatness (μm) Surface plate grade guidelines
CMX1-025 4
JIS grade 0 equivalent
CMX1-035 4.5
CMX2-040 5
CMX2-050 5
CMX2-075 6.5
CMX3-100 7.5
CMX3-150 10
* The surface plate grade is in accordance with the JIS B 7513 precision surface plate.
Table 2 Stage mounting surface recommended atness
⿟Adjust the position and the settings so that the OT sensor (limit sensor) reacts effectively
before the moving parts strike the stopper.
⿟When adjusting sensor position, secure it so that the sensor dog does not contact the
sensor.
See Fig. 3.
Sensor dog
Secure the sensor so that it does
not make contact with the sensor
dog.
Sensor
Fig. 3 Drawing for mounting the sensor
⿟Check that there is no tool or bolt in the product before operating it.
⿟The stoppers attached to both stroke ends are not for positioning.
Do not use them for positioning.
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5-4
CMX
5. Installation and Operation
5.
Installation and Operation
5. Installation and Operation
⿟After trial run, supply the specied grease to LM guide and ball screw before using the
product.
In addition, the standard models contain the THK AFF grease.
⿟Once in 10 minute strokes, stroke each axis twice or more the ball screw lead. (Rotate
the ball screw twice or more. )
⿟The standard sensors (photomicro sensors) do not have the water-proof or dust-proof
structure. Do not use it in a place where much dust or oil mist is present, or where water,
oil or chemical directly or indirectly ies. For other detail information, see the catalog
issued by the sensor manufacturer.
* Sensor
∙EE-SX672 (connector: EE-1001): OMRON Corporation
5-3 Other precautions
⿟The accuracy of this product is the value in a horizontal position without moment load
applied.
When used in other positions or with large moment load applied, the accuracy may vary.
⿟Adjust the parameters and gains of the driver according to the usage conditions.
⿟For selection and handling of a motor and a driver, see the respective catalog and
instruction manual issued by the motor and driver manufacturers.
For data required to select a motor, see the appendix for your reference.
⿟For selection, handling and mounting of a coupling, see the respective catalog issued by
the coupling manufacturer.
Check necessary data such as permissible torque, eccentricity, deflection angle and tightening
torque of the assembly bolt.
* For models of standard couplings, see Table 3.
Model Coupling models
CMX1 SFC-010SA2: Miki Pulley Co., LTD.
CMX2 SFC-020SA2: Miki Pulley Co., LTD.
CMX3 SFC-030SA2: Miki Pulley Co., LTD.
Table 3 Standard coupling models
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5-5
CMX
5. Installation and Operation
5.
Installation and Operation
5. Installation and Operation
5-4 Mounting method
Using the mounting holes in the base, secure this product to the mounting surface using hexagonal-
socket-head type bolts. See Fig. 4. Also see Table 4, which shows the size and the recommended
length of bolts for securing to base.
Bolts for securing base
Base Mounting
surface
L
h
Fig. 4 Mounting drawing 1
Model Bolt size
Recommended bolt length
(L)
Mounting surface recommended
female thread depth
h dimension
CMX1 M6 20 mm or more 12 mm or more 11 mm
CMX2 M8 25 mm or more 16 mm or more 13 mm
CMX3 M12 40 mm or more 24 mm or more 22 mm
Table 4 Base securing bolt size and recommended length
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5-6
CMX
5. Installation and Operation
5.
Installation and Operation
5. Installation and Operation
Mounting procedure
Mount this product in the following procedure:
(1) Confirm that there is no burr, dent or dust on your mounting surface.
If there is any burr or scratch, remove it with an oilstone or the like. Also, remove dust with a
clean waste cloth or the like.
(2) Likewise, confirm that there is no burr, dent or dust on the underside of the CMX base, and
remove it as necessary.
(3) Mount CMX on the mounting surface. When mounting, use the dedicated hanger.
(4) Adjust the position so that the center of the mounting hole of CMX and that of the screw hole of
the mounting surface match.
(5) Using the recommended bolt listed on Table 4, apply temporary fastening.
(6) Using a torque wrench, fasten the bolts. For the base material, see Table 5.
Fig. 5 Mounting drawing 2
Model Base material
CMX1 A5052
CMX2 A2017
CMX3 SS400
Table 5 Table of base material
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6-1
CMX
6. Maintenance
6.
Maintenance
6-1 Precautions to be observed for safe use
⿟Turn off the machine (turning power off) before conducting any maintenance.
Otherwise, it may cause electric shocks, or cause malfunction that could lead to injury.
⿟If two or more people are involved in the operation, conrm the procedures such
as sequences, signs, and abnormalities in advance, and appoint another person for
monitoring the operation.
Failure to do so may cause an unexpected accident.
⿟When handling grease, wear a protective glasses and protective gloves.
If grease gets into eyes or touch the skin, it may affect your body such as causing inflammation.
* If grease gets into eyes, clean them with clean water for 15 minutes and visit the doctor.
* If grease touches skin, wash it sufficiently with water and soap.
⿟After greasing, travel the block back and forth throughout, and wipe off the surplus
grease.
If you restart operation immediately after greasing, the surplus grease flies and may cause faults
and affect your body.
⿟Do not expose grease to a ame, spark or high-temperature object.
Otherwise, it may ignite the grease, which could cause fire.
* For other information on handling grease, see the precautions indicated on the grease package
or catalog. We have “Material Safety Data Sheets” for THK original greases. Contact THK for
details.
⿟Prevent grease from adhering to the photomicro sensors.
Failure to do so may cause malfunction that could lead to injury, fault or fracture.
Caution
Warning
6-2 Precautions to be observed for prevention of product fault or fracture
⿟To have this product fully exert its functions, it is essential to lubricate the product. Be
sure to supply grease on a regular basis.
Using the product with insufficient lubrication may shorten the service life.
⿟Do not let foreign materials enter into the LM guide or the ball screw.
Otherwise, it may cause fault,or could adversely affect the performance or service life.
⿟Do not mix different types of grease.
Otherwise, it may affect the performance.
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6.
Maintenance
6-2
CMX
6. Maintenance
6-3 Daily inspection
6-4 Periodical inspection
⿟Before operating the product, visually check any exterior damage or stain.
⿟Check the grease state (stain, etc.). If the grease is signicantly stained, wipe off the
grease, and then supply new grease. (Supply the new grease until it comes out from the
inner block, and exhaust the stained grease. )
⿟Check whether abnormal noise or vibration occurs during operation. If abnormal noise
or vibration occurs, immediately stop the machine and inspect the state of the product.
Insufficient lubrication or loosened mounting bolts may cause abnormal noise or vibration.
⿟Perform more detailed inspection approximately once every 3 to 6 months.
∙Check the lubrication state, and then clean the product and replenish the grease.
∙Inspect whether each mounting bolt has loosened, and if any of them has loosened, retighten it.
6-5 Lubrication
⿟The standard models are supplied with the following grease before shipment.
THK AFF grease
See the appendix for details of the greases.
⿟For normal operation, replenish grease approximately every 100 km travel distance or 6
months, whichever is earlier. * See “Method for supplying grease” in 6-5.
Note that the greasing interval varies with the service conditions or service environment.
We recommend determining the greasing interval through the initial inspection.
* Note that the greasing interval becomes shorter than usual under the environment where oil
content decreases.
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