SMC Networks CRQ2 Series User manual

文書 No.CRQ2-OM00002-C
PRODUCT NAME
Compact Rotary Actuator
MODEL / Series / Product Number
CRQ2 Series
Rack Pinion Type
2020-10-1310:36
DI987004

Contents
Safety Instructions Page
１．Outline １７
１－１ Specification １７
１－２ Effective output １８
１－３ Rotation range １８
２．Internal structure and parts description １９
２－１ Size 10,15 １９
２－２ Size 20,30,40 ２０
３．Basic circuit of the rotary actuator ２１
３－１ Circuit structure ２１
３－２ Recommended equipment ２１
４．M ou n ti ng ２２
４－１ Restriction of the load to axis ２２
４－２ Operation of axis fitting referring ２２
４－３ Flange application ２３
４ － ４ Piping and operating direction ２３
４－５ Operating air ２３
５．Setting rotation time ２４
５－１ Inertia moment ２４
５ － ２ K i n e t i c e n e r g y ２６
５－３ External stopper ２７
５－３－１ Install position of external stopper ２７
５－３－２ Caution on using external stopper ２７
６．R o t a r y a c t u a t o r w i t h A u t o s w i t c h ２８
６－１ Autoswitch specif ication ２８
６－２ Auto s witc h i n stal l a tion ２９
６－３ Au toswitch s et p osition ２９
６－４ Internal structure and operation principle ３０
７．C u s h i o n s ３０
８．M a i n t e n a n c e I n s p ec t i o n ３１
８ － １ Periodic inspection ３１
８－２ Disassemble and reassemble ３１
８－２－１ Caution of disassemble ３１
８－２－２ Disassembling procedure ３２
８－２－３ Assemble procedure ３３
８－３ Troubleshooting ３７
2020-10-1310:36
DI987004

Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition to International Standards
(ISO/IEC)*1), and other safety regulations.
*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines .(Part 1: General requirements)
ISO 10218-1992: Manipulating industrial robots -Safety.
etc.
Caution
Caution indicates a hazard with a low level of risk which, if not avoided, could result
in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk which, if not avoided, could
result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will result
in death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results.
The expected performance and safety assurance of the equipment will be the responsibility of the person who
has determined its compatibility with the product.
This person should also continuously review all specifications of the product referring to its latest catalog
information, with a view to giving due consideration to any possibility of equipment failure when configuring the
equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our products must be
performed by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.
1.The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed.
2.When the product is to be removed, confirm that the safety measures as mentioned above are implemented
and the power from any appropriate source is cut, and read and understand the specific product precautions
of all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the product is to
be used in any of the following conditions.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to
direct sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalog.
3. An application which could have negative effects on people, property, or animals requiring special safety
analysis.
4.Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a
mechanical protective function, and periodical checks to confirm proper operation.
-1-
2020-10-1310:36
DI987004

Safety Instructions
Caution
1.The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance
Requirements”.
Read and accept them before using the product.
Limited warranty and Disclaimer
1.The warranty period of the product is 1 year in service or 1.5 years after the product is delivered,
whichever is first.
Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility,
a replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage
incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers
noted in the specified catalog for the particular products.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass
destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the
relevant security laws and regulations of the countries involved in the transaction. Prior to the
shipment of a SMC product to another country, assure that all local rules governing that export
are known and followed.
Caution
SMC products are not intended for use as instruments for legal metrology.
Measurement instruments that SMC manufactures or sells have not been qualified by type approval tests
relevant to the metrology (measurement) laws of each country.
Therefore, SMC products cannot be used for business or certification ordained by the metrology
(measurement) laws of each country.
-2-
2020-10-1310:36
DI987004

Design / Selection
1. Confirm the specifications.
Products represented in this catalog are designed only for use in compressed air systems.
Do not operate at pressures or temperatures, etc., beyond the range of specifications, as this can
cause damage or malfunction. (Refer to the specifications.)
Please contact SMC when using a fluid other than compressed air.
We do not guarantee against any damage if the product is used outside of the specification range.
2. If the operation involves load fluctuations, ascending/descending movements, or changes
in friction resistance, make sure to provide safety measures.
Operating speed will increase, and bodily injury may occur, or damage to the machinery itself may
occur.
3. If there is a chance that the product will pose a hazard to humans, install a protective cover.
If the moving portion of the product will pose a hazard to humans or will damage machinery or
equipment, provide a construction that prevents direct contact with those areas.
4. Be certain that the secured portions will not loosen.
Be certain to adopt a reliable connecting method if the rotary table is used very frequently or if it is used
in a location that is exposed to a large amount of vibrations.
5. There may be cases in which a speed reduction circuit or a shock absorber is required.
If the driven object moves at high speeds or is heavy, it will be unfeasible for only the rotary table’s
cushion to absorb the shock. Therefore, provide a speed-reduction circuit to reduce the rotary table’s
speed before the thrust is applied to the cushion, or an external shock absorber to dampen the shock.
If these countermeasures are taken, make sure to take the rigidity of the mechanical equipment into
consideration.
6. Consider the possibility of a reduction in the circuit air pressure caused by a power failure.
When a rotary table is used as clamping mechanism, there is a danger of work piece dropping if there
is a decrease in clamping force, due to a drop in circuit pressure caused by a power failure. Therefore,
safety equipment should be installed to prevent damage to machinery and bodily injury.
7. Consider the possibility of power source related malfunctions that could occur.
For the machinery equipment that rely on power sources such as compressed air, electricity, or
hydraulic pressure, adopt countermeasure to prevent the equipment from causing a hazard to humans
or damage to the machinery and equipment in the event of malfunction.
8. If a speed controller is provided in the exhaust restrictor, implement a safety design taking
the residual pressure into consideration.
If air pressure is applied to the air supply side without residual pressure in the exhaust side, the rotary
table will operate at abnormally high speeds, which could pose a hazard to humans and damage the
machinery and equipment.
9. Consider the behavior of the rotary table in the event of an emergency stop.
Devise a safe system so that if a person engages the emergency stop, or if a safety device is tripped
during a system malfunction such as a power failure, the movement of the rotary table will not cause a
hazard to humans or damage the equipment.
10. Consider the action of the rotary table when restarting after an emergency stop.
Devise a safe design so that the restarting of the rotary table will not pose a hazard to humans or
damage the equipment. Install manually controlled equipment for safety when the rotary table has
to be reset to the starting position.
11. Do not use the product as a shock absorber.
If an abnormal pressure or air leakage occurs, the rotary table’s speed reduction capability could
become severely affected, which could pose a hazard to humans and damage the machinery and
equipment.
-3-
Warning
2020-10-1310:36
DI987004

12. Select a speed within the product’s allowable energy value.
If the product’s kinetic energy of the load exceeds the allowable value, it could damage the product,
and cause a hazard to humans and damage the machinery and equipment.
13. Provide a shock absorber if the kinetic energy that is applied to the product exceeds the
allowable value.
If the product’s kinetic energy exceeds the allowable value, it could damage the product, and cause a
hazard to humans and damage the machinery or equipment.
14. Do not stop or hold the product at midpoint by keeping air pressure in the product. (Air
balancers etc.)
For a product lacking an external stopping mechanism, if the directional control valve is closed to keep
the air pressure in the product, in an attempt to stop the product at midpoint, it might not be possible to
maintain that stopped position due to an air leakage.As a result, it could pose a hazard to humans and
cause damage to machinery and/or equipment.
15. Do not use two or more rotary tables with the aim of synchronized movement.
One of the rotary tables may bear the load of operation, making synchronized movement impossible,
and possibly leading to deformation of the equipment.
16. Do not use in a location where adverse effect could be occurred by the oozing of the
lubricant to the exterior.
The lubricant coating the interior of the product may leak to the outside of the product from connecting
parts of the rotary body, cover, etc.
17. Do not disassemble the product or make any modifications, including additional machining.
This may cause human injury and/or an accident.
18. Refer to the Auto Switches Precautions for using with an auto switch.
1. Do not use below the speed adjustment range specified for the product.
If the product is used below the specified speed adjustment range, it could cause the product to stick,
slip, or the movement to stop.
2. Do not apply an external torque to the product that exceeds the rated output.
If an external force that exceeds the product’s rated output is applied to the product, it could damage
the product.
3. The holding torque of the rotating end of the double piston type
If the internal piston of a double piston product comes in contact with the angle adjustment screen or
the cover and stops, the holding torque at the rotating end is one half of the actual output.
4. If it is necessary to provide repeatability of the rotation angle, directly stop the load
externally.
Even with a product that is equipped with an angle adjuster, there are times when the initial rotation
angle could change.
5. Do not use under hydraulic pressure.
The product will be damaged if it is used by applying hydraulic pressure.
6. There is a possibility of backlash being generated when stopping the double piston style in
the middle with a valve of the closed center type.
7. Do not use in a places where there are many temperature fluctuations.
When using in lower temperature applications, use caution so that frost does not occur
inside the cylinder or the piston rod.
Operation may be unstable.
8. Adjust the speed control in the environment in which it will be used in.
Speed adjustment may be changed if the environment is different.
-4-
Caution
2020-10-1310:36
DI987004

Mounting
1. Operation manual
Install the product and operate it only after reading the operation manual carefully and understanding its
contents.Also, keep the manual in a location where it can be referred to as necessary.
2. Ensure sufficient space for maintenance activities.
When installing the products, allow access for maintenance.
3. Tighten threads with the proper tightening torque.
When installing the products, follow the listed torque specifications.
4. Before adjusting the angle by supplying air pressure, take appropriate measures to prevent
the equipment from rotating unnecessarily.
When an adjustment is performed under air pressure, the equipment could rotate and fall during the
adjustment, depending on the mounted posture of the equipment. As a result, it could pose a hazard to
humans and damage the machinery and equipment.
5. Do not loosen the angle adjustment screw beyond the allowable adjustment range.
The angle adjustment screw could fall out if it is loosened beyond its allowable adjustment range, which
could pose a hazard to humans and damage the machinery and equipment.
6. Do not place a magnetic object near the product.
The auto switch is a magnetic sensing type. If a magnetic object is placed close to it, the rotary table
could operate suddenly, which could pose a hazard to humans and damage the machinery and
equipment.
7. Do not perform additional machining to the product.
Additional machining to the product can result in insufficient strength and cause damage to the product.
This can lead to possible human injury and damage to the surrounding equipment.
8. Do not enlarge the fixed throttle by modifying the pipe connectors.
If the hole diameter is enlarged, the product’s rotation speed will increase, causing the shock force to
increase and damage to the product. As a result, it could pose a hazard to humans and damage the
machinery and equipment.
9. If shaft couplings are used, use those with angular freedom.
If shaft couplings that lack angular freedom are used, they could scrape due to eccentricity, leading to
equipment malfunction and product damage.As a result, it could pose a hazard to humans and damage
the machinery and equipment.
10.Do not apply to the shaft a load that exceeds the values given in a catalog.
If a load that exceeds the allowable value is applied to the product, it could lead to equipment
malfunction, a hazard to humans and damage to the machinery and equipment. Provided that a
dynamic load is not generated, a load that is within the allowable radial / thrust load can be applied.
However, applications in which the load is applied directly to the shaft should be avoided whenever
possible. The methods such as those described below are recommended to prevent the load from being
applied directly to the shaft in order to ensure a proper operating condition.
11.Do not use springs, etc., to add force in the rotational movement direction.
When rotational force from an external spring, etc., acts and generates negative pressure on the
product’s interior, breakage of the internal seal or acceleration of abrasion may occur.
-5-
Warning
2020-10-1310:36
DI987004

12.Place an external stopper in a position that is away from the rotating table.
If the stopper is placed near the rotating table, the torque that is generated by the product itself will
cause the reaction force which is directed to the stopper to be redirected and applied to the rotating table.
This will lead to the breakage of the rotating table and bearing. As a result, it could pose a hazard to
humans and damage the machinery and equipment.
Precautions when Using External Stoppers
・Be sure to install external stoppers in the proper places. Installation in the wrong place can result in
equipment breakage, which could damage other equipment or cause human injury.
・Install external stoppers within the range of the rotating angle.
Installing an external stopper at the maximum rotation angle may result in an inability to fully absorb the
kinetic energy generated, and damage to equipment may occur.
・Angle adjustment is available for this product. When using an external stopper, set in a position so that
that the adjusting bolt does not collide into the piston.
Precautions when Converting Rotational Motion to Linear Motion
When using a link mechanism, etc., to convert rotational motion to linear motion, and determining the
operation end using the stopper on the linear motion end (see below), a small value for θat the operation
end may result in the torque of the rotary table causing excessive radial load to act on the output axle, and
equipment breakage may occur.
Install a stopper on the rotation motion side, or increase the value of θat the operation end, to make sure
the load generated does not exceed the allowable value for the product.
-6-
Install the stopper at a sufficient
distance from the rotating shaft.
The external stopper becomes a
fulcrum, resulting in the load’s
inertia force being applied to the
table as a being moment.
If an external stopper is installed
on the opposite side of the load,
the inertia force generated by
the load is applied directly to the
table.
Stopper
Rotary table
2020-10-1310:36
DI987004

1. Do not use organic solvent to wipe the area of the name plate that shows the model.
It will erase what is indicated on the name plate.
2. Do not hit the rotating table by securing the body or hit the body by securing the rotating
table.
These actions could cause the table to bend or damage the bearing.
3. Do not place your foot directly on the table or on the equipment that is coupled to the table.
Placing one’s weight directly onto the rotating table could cause the rotating table or the bearing to
become damaged.
4. If a product is equipped with an angle adjustment function, use it within the specified
adjustment range.
If the product is used outside the specified adjustment range, it could lead to equipment malfunction or
product damage. Refer to the product specifications for details on the adjustment range of the products.
5. A product with an angle adjustment screw is temporarily secured at an arbitrary position within
the adjustable rotating range. Before using product, readjust it to a desired angle and tighten the
screw firmly.
Piping
1. Refer to the Fittings and Tubing Precautions (Best Pneumatics No.7) for handling one touch
fittings.
2. Preparation before piping
Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove
chips, cutting oil and other debris from inside the pipe.
3. Wrapping of pipe tape
When screwing piping or fittings into ports, ensure that chips from the pipe threads or sealing material
do not enter the piping. Also, if tape is used, leave 1.5 to 2 thread ridges exposed at the end of the
threads.
Speed Adjustment
1. To make a speed adjustment, gradually adjust starting from the low speed end.
If the speed adjustment is performed from the high speed end, it could damage the product.
As a result, it could pose a hazard to humans and damage the machinery and equipment.
-7-
Sealant tape
Winding
Expose approx. 2 threads
direction
Caution
Caution
Warning
2020-10-1310:36
DI987004

Lubrication
1. This product should be used without lubrication. Although it will operate even if it is
lubricated, it could lead to sticking or slipping.
Air Supply
1. Type of fluids
Please consult with SMC when using the product in applications other than compressed air.
2. When there is a large amount of moisture
Compressed air containing a large amount of moisture can cause malfunction of pneumatic equipment.
An air dryer or water separator should be installed upstream from filters.
3. Drain flushing
If condensation in the drain bowl is not emptied on a regular basis, the bowl will overflow and allow the
condensation to enter the compressed air lines. This may cause malfunction of pneumatic equipment.
If the drain bowl is difficult to check and remove, installation of a drain bowl with an auto drain option is
recommended.
4. Use clean air.
Do not use compressed air that contains chemicals, synthetic oils including organic solvents, salt or
corrosive gases, etc., as it can cause damage or malfunction.
1. When extremely dry air is used as the fluid, degradation of the lubrication properties inside
the equipment may occur, resulting in reduced reliability (or reduced service life) of the
equipment. Please consult with SMC.
2. Install an air filter.
Install an air filter upstream near the valve. Select an air filter with a filtration size of 5μm or smaller.
3. Take measures to ensure air quality, such as by installing an aftercooler, air dryer, or water
separator.
Compressed air that contains a large amount of moisture can cause malfunction of pneumatic
equipment such as rotary tables. Therefore, take appropriate measures to ensure air quality, such as by
providing an aftercooler, air dryer, or water separator.
4. Ensure that the fluid and ambient temperature are within the specified range.
If the fluid temperature is 5°C or less, the moisture in the circuit could freeze, causing damage to the
seals and equipment malfunction. Therefore, take appropriate measures to prevent freezing.
-8-
Warning
Warning
Caution
2020-10-1310:36
DI987004

Operating Environment
1. Do not use in an atmosphere having corrosive gases, chemicals, sea water, water, steam, or
where there is direct contact with any of these.
Refer to the construction for information on the rotary table material.
2. Do not expose the product to direct sunlight for an extended period of time.
3. Do not use in a place subject to heavy vibration and/or shock.
4. Do not mount the product in locations where it is exposed to radiant heat.
5. Do not use in dusty locations or where water oil, etc., splash on the equipment.
Maintenance
1. Perform maintenance inspection according to the procedures indicated in the operation
manual.
If handled improperly, malfunction and damage of machinery or equipment may occur.
2. Maintenance work
If handled improperly, compressed air can be dangerous. Assembly, handling, repair and element
replacement of pneumatic systems should be performed by a knowledgeable and experienced person.
3. Drain flushing
Remove drainage from air filters regularly.
4. Removal of equipment, and supply/exhaust of compressed air
When components are removed, first confirm that measures are in place to prevent workpieces from
dropping, run-away equipment, etc. Then, cut off the supply pressure and electric power, and exhaust
all compressed air from the system using the residual pressure release function.
When machinery is restarted, proceed with caution after confirming that appropriate measures are in
place to prevent cylinders from sudden movement.
1. For lubrication, use the designated grease for each specific product.
The use of a non-designated lubricant could damage the seals.
Please refer to Table 13 on page 37 for where to apply grease and the grease to use.
-9-
Warning
Warning
Caution
2020-10-1310:36
DI987004

Auto Switches Precautions
Design / Selection
1. Confirm the specifications.
If the product is used with excess load applied or beyond the specification range, this may cause the
product to break or malfunction. We do not guarantee against any damage if the product is used outside
of the specification range.
2. Cautions for use in an interlock circuit
When an auto switch is used for an interlock signal requiring high reliability, devise a double interlock
system to avoid trouble by providing a mechanical protection function, or by also using another switch
(sensor) together with the auto switch.
Also, perform regular maintenance and confirm proper operation.
3. Do not attempt to disassemble, modify (including exchanging the printed circuit boards), or
repair the product.
An injury or failure can result.
1. Pay attention to the length of time that a switch is ON at an intermediate stroke position.
When an auto switch is placed at an intermediate position of the stroke and a load is driven,at the time
the piston passes the auto switch will operate, but if the speed is too great the operating time will be
shortened and the load may not operate properly.
The maximum piston speed is:
V(mm/s)= ×1000
2. Take precautions when multiple rotary tables are used close together.
When multiple auto switch rotary tables are used in close proximity, magnetic field interference may
cause the auto switches to malfunction. Maintain a minimum cylinder separation of 40 mm. (When the
allowable interval is specified for each cylinder series, use the indicated value.)
The auto switches may malfunction due to interference from the magnetic fields.
Use of a magnetic screen plate (MU-S025) or commercially available magnetic screen tape can reduce
the interference of magnetic force.
3. Ensure sufficient clearance for maintenance activities.
When designing an application, be certain to allow sufficient clearance for maintenance.
4. Do not mount rotary table with the auto switch on a footing.
If work personnel gets on or puts the work personnel’s foot on the footing accidentally, an excessive load
is applied to the rotary table, causing the rotary table to break.
5. Design the circuit so that any back-flow current does not flow in if a short-circuit trouble
occurs or forced operation is performed to check the operation.
If a back-flow current occurs, this may cause the switch to malfunction or break.
6. When multiple auto switches are required.
“n” indicates the number of auto switches which can be physically mounted on the rotary tables.
Detection intervals depends on the auto switch mounting structure and set position, therefore some
required interval and set positions may not be available.
7. Limitations on detectable position
There are positions or surfaces (bottom surface of the foot bracket, etc.) where the auto switch cannot
be mounted due to the physical interference depending on the rotary table mounting status or mounting
bracket. Select an appropriate auto switch setting position where the auto switch does not interfere with
the rotary table mounting bracket (trunnion or reinforcing ring) after checking it sufficiently.
-10-
Auto switch operating range (mm)
Load applied time (ms)
Warning
Caution
2020-10-1310:36
DI987004

8. Keep wiring as short as possible.
<Reed>
As the length of the wiring to a load gets longer, the rush current at switching ON becomes greater,
and this may shorten the product’s life. (The switch will stay ON all the time.)
1) Use a contact protection box when the wire length is 5m or longer.
2) Even if an auto switch has a built-in contact protection circuit, when the wiring is more than 30m
long, it is not able to adequately absorb the rush current and its life may be reduced.
It is again necessary to connect a contact protection box in order to extend its life. Please consult
SMC in this case.
<Solid state>
Be sure to use a wire length 100m or less.
When the wire length is long, we recommend the ferrite core should be attached to the both ends of
the cable to prevent excess noise. A contact protection box is not necessary for solid state switches
due to the nature of this product construction.
9. Do not use a load that generates surge voltage.
<Reed>
If a surge voltage is generated, the discharge occurs at the contact, possibly resulting in the shortening
of product life.
If driving a load such as a relay that generates a surge voltage, use an auto switch with built-in contact
protection circuit or use a contact protection box.
<Solid state>
If driving a load such as a relay that generates a surge voltage, use a built-in surge absorbing element
type device.
10. Pay attention to the internal voltage drop of the auto switch.
<Reed>
1) Auto switch with an indicator light
・If auto switches are connected in series as shown below, take note that there will be a large voltage
drop because of internal resistance in the light emitting diodes. (Refer to the internal voltage drop in
the auto switch specifications.)
[The voltage drop will be “n”times larger when “n”auto switches are connected.]
Even though an auto switch operates normally, the load may not operate.
・In the same way, when operating under a specified voltage, although an auto switch may operate
normally, the load may not operate. Therefore, the formula below should be satisfied after confirming
the minimum operating voltage of the load.
Supply Internal voltage Minimum operating
voltage drop of auto switch voltage of load
2) If the internal resistance of a light emitting diode causes a problem, select an auto switch without an
indicator light.
<Solid state / 2-wire type>
Generally, the internal voltage drop of the solid state auto switch is larger than that or the reed auto
switch. When the auto switches (“n” pcs.) are connected in series, the voltage drop is multiplied by “n”.
In this case, the auto switches operate correctly, but the loads may not operate.Additionally, note that
the 12 VDC relay does not apply to the auto switch.
-11-
>
2020-10-1310:36
DI987004

11.Pay attention to leakage current.
<2-wire type>
Current (leakage current) flows to the load to operate the internal circuit even when in the OFF state.
Operating current of load (OFF condition) >Leakage current
If the criteria given in the above formula are not met, it will not reset correctly (stays ON).Use a 3-wire
switch if this specification will not be satisfied.
Moreover, leakage current flow to the load will be “n”times larger when “n”auto switches are
connected in parallel.
12.Output operation of the solid state auto switch is not stable for 50 [ms] after powered ON.
In the output operation immediately after powered ON orAND connection operation, the input device
(PCL or relay, etc.) may judge the ON position as OFF output or the OFF position as ON output. So,
please make the setting on the equipment so that the input judgement signal is set disabled for 50 [ms]
immediately after powered ON or AND connection. When using SMC’s AHC system (Auto Hand
Changing System) Series MA, please also make this setting.
Mounting / Adjustment
1. Do not drop or bump.
Do not drop, bump or apply excessive impacts (300m/s2or more for reed auto switches and 1000m/s2or
more for solid state auto switches) while handling. Although the body of the auto switch may not be
damaged, the inside of the auto switch could be damaged and cause malfunction.
2. Observe the proper tightening torque for mounting an auto switch.
When an auto switch is tightened beyond the range of tightening torque, auto switch mounting screws,
auto switch mounting brackets or auto switch may be damaged.
On the other hand, tightening below the range of tightening torque may allow the auto switch to slip out
of position.
3. Do not carry a rotary table by the auto switch lead wires.
This may cause disconnection of the lead wire or the internal element to break.
4. Do not use screws other than the set screws installed on the auto switch body to secure the
auto switch.
If using other screws, auto switch may be damaged.
5. Mount an auto switch at the center of the operating range.
In the case of 2-color display auto switch, mount it at the center of the green LED illuminating range.
Adjust the mounting position of the auto switch so that the piston stops at the center of the operating
range. (The mounting position shown in the catalog indicates the optimum position at stroke end.)
If mounted at the end of the operating range (around the borderline of ON and OFF), operation will be
unstable depending of the operating environment. Also there are some rotary tables with individual
setting methods for auto switches. If so, mount it in accordance with the indicated method.
-12-
Even if 2-color indication solid state auto switches are fixed at a proper operating
range (the green light lights up), the operation may become unstable depending
on the installation environment or magnetic field disturbance.
Magnetic body, external magnetic field, proximal installation of rotary tables
with built-in magnet and actuators, temperature change, other factors for
magnetic force fluctuation during operation, etc.
Warning
2020-10-1310:36
DI987004

6. Check the actual actuation status and adjust the auto switch mounting position.
According to the installation environment, the rotary table may not operate even at its proper mounting
position. Even when setting at a midpoint of the stroke, check the actuation status and make the
adjustment in the same manner.
7. Be very careful when handling the auto switch mounting band, as it has a thin structure.
Wiring
1. Confirm proper insulation of wiring.
If there is any improper insulation (mixed contact with other circuit, grounding fault, or improper
insulation between terminals, etc.) in the wiring, an over-current flows in, causing the auto switch to
break.
2. Wire separately from power lines of high voltage lines, avoiding parallel wiring of wiring in
the same conduit with these lines.
If an inrush current is generated, the noise may cause the auto switch to malfunction.
3. Be certain to connect the load before power is applied.
<2-wire type>
If the power is turned ON when an auto switch is not connected to a load, the auto switch will be
instantly damaged because of excess current (short circuit).
It is the same as when the 2-wire brown lead wire (+, output) is directly connected to the (+) power
supply terminal.
4. Carry out the wiring work after shutting down the power.
If the wiring work is performed with the power turned ON, this may cause electric shock, malfunction, or
damage to the auto switch.
5. Avoid repeatedly bending or stretching lead wires.
Broken lead wires will result from repeatedly applying bending stress or stretching force to the read
wires.
Stress and tensile force applied to the connection between the lead wire and auto switch increases the
possibility of disconnection.
6. Do not allow short-circuit of loads.
<Reed>
If the power is turned ON with a load in a short circuit condition, the switch will be instantly damaged
because of excess current flow into the switch.
<Solid state>
PNP output type auto switches do not have built-in short circuit protection circuits.
Carefully handle as the auto switch may be damage.
-13-
Warning
2020-10-1310:36
DI987004

7. Avoid incorrect wiring.
<Reed>
A 24 VDC auto switch with indicator light has polarity. The brown lead wire or terminal No.1 is (+), and
the blue lead wire or terminal No.2 is (－).
1) If connections are reversed, an auto switch will operate, however, the light emitting diode will not light
up.
Also, take note that a current greater than that specified will damage a light emitting diode and it will
no longer operate.
Applicable model: D-93, A93V
<Solid state>
1) If connections are reversed on a 2-wire type auto switch, the auto switch will not be damaged if
protected by a protection circuit, but the auto switch will always stay in an ON state. However, it is still
necessary to avoid reversed connections, since the auto switch could be damaged by a load short
circuit in this condition.
2) If connections are reversed (power supply line + and power supply line－) on a 3-wire type auto
switch, the auto switch will be protected by a protection circuit. However, if the power supply line (+) is
connected to the blue wire and the power supply line (－) is connected to the black wire, the auto
switch will be damaged.
8. When the lead wire sheath is stripped, confirm the stripping direction. The insulator may be
split or damaged depending on the direction. (D-M9□only)
Operation Environment
1. Never use in an atmosphere with explosive gases.
The structure if auto switches is not intended to prevent explosion. This may lead to explosion hazard.
Please contact SMC concertingATEX compliant products.
1. Do not use in an area where a magnetic field is generated.
Auto switches will malfunction or magnets inside rotary tables will become demagnetized. (Please
consult with SMC if a magnetic field resistant auto switch can be used.)
-14-
Recommended Tool
Description
Model
Wire stripper
D-M9N-SWY
* Stripper for a round cable (Ø2.0) can
be used for a 2-wire type cable.
Warning
Caution
2020-10-1310:36
DI987004

2. Do not use in an environment where the auto switch will be continually exposed to water.
Although auto switches satisfy IEC standard IP67 construction expect some models (D-A3□, A44□,
G39□, K39□, RNK, RPK) do not use auto switches in applications where continually exposed to water
splash or splay. This may cause improper insulation or malfunction.
3. Do not use in an environment with oil or chemicals.
If auto switches are used in an environment containing coolant, cleaning solvent, various oils, or
chemicals even for a short period of time, this may adversely affect the auto switches, resulting in
improper insulation, malfunction due to swelling of the potting resin, or hardening of the lead wires.
4. Do not use in an environment with temperature cycles.
If temperature cycles other than normal temperature changes are applied, this may adversely affect the
insides of the auto switches.
5. Do not use in an environment where there is excessive impact shock.
<Reed>
When excessive impact (300m/s2or more) is applied to a reed auto switch during operation, the
contacts may malfunction and generate or cut off a signal momentarily (1ms or less). Please consult
with SMC if a solid state auto switch can be used according to the environment.
6. Do not use in an area where surges are generated.
<Solid state>
If there is an equipment unit (electromagnetic lifter, high-frequency induction furnace, motor, or radio,
etc.) that generates large surges or electromagnetic waves around cylinders with solid state auto
switches or actuators, this may cause the circuit element inside the auto switch to break.
7. Avoid accumulation of iron waste or close contact with magnetic substances.
If many iron particles, such as cutting chips or spatters accumulate around a cylinder with the auto
switches or an actuator or if a magnetic substance (attracted by a magnet) is put close to a cylinder with
the auto switch or an actuator, the magnetic force inside the cylinder or actuator loses, causing the auto
switch to malfunction.
8. Please contact SMC concerning water resistance, elasticity of lead wires, usage at welding
sites, etc.
9. Do not use in direct sunlight.
10. Do not mount the product in locations where it is exposed to radiant heat.
11. Take appropriate measures against the lightning surge on the equipment side as the auto
switches do not have any lightning surge resistance specified in the CE marking.
Maintenance
1. Removal of equipment, and supply/exhaust of compressed air.
Before any machinery or equipment is removed, first ensure that the appropriate measures are in place
to prevent the fall or erratic movement of driven objects and equipment, then cut off the electric power
and reduce the pressure in the system to zero. Only then should you proceed with the removal of any
machinery and equipment.
When machinery is restarted, proceed with caution after confirming that appropriate measures are in
place to prevent rotary tables from moving suddenly.
2. Do not touch a terminal during energizing.
Touching a terminal during energizing may cause electric shock, malfunction, or auto switch breakage.
-15-
Warning
2020-10-1310:36
DI987004

1. Perform the following maintenance periodically in order to prevent possible danger due to
unexpected auto switch malfunction.
1) Secure and tighten auto switch mounting screws.
If screws become loose or the mounting, position is dislocated, retighten them after readjusting the
mounting position.
2) Confirm that there is no damage to lead wires.
To prevent faulty insulation, replace auto switches or repair lead wires, etc., if damage is discovered.
3) Confirm the detection setting position.
・Red light of 1-color display auto switch
Confirm that the set position stops at the center of the operating range (red display area).
・Conform the green light and position of the 2-color display auto switch.
Conform that the set position stops at the center of the appropriate operating range (green display
area). If stopped with the red LED lit, the operation may become unstable due to effects of the
equipment environment or external disturbance. So, set the mounting position at the center of the
appropriate operating range again.
2. Do not use solvents such as benzene, thinner etc. to clean the product.
They could damage the surface of the body and erase the markings on the body. For heavy stains, use a
cloth lightly dampened with diluted neutral detergent, then wipe up any residue with a dry cloth.
Handling Precautions
1. The protective cover supplied with the product when D-A9□or D-A9□V is shipped from
the factory is intended to absorb the impact generated by handling and prevent the auto
switch holding screw from falling. Do not remove this cover until immediately before
installing the auto switch on the rotary table.
-16-
Caution
Caution
2020-10-1310:36
DI987004

１． Outline
This operation manual explains “rack and pinion type compact rotary actuator”.
hen using the product, load (moment of inertia), rotation time and other factors have to be considered.
So, confirm the specification of the product prior to use.
1-1 Specifications
-17-
Table1 Specification-1
Size
10
15
20
30
40
Operating fluid
Air（Non-lube）
Max. operating pressure
0.7 MPa
1.0 MPa
Min. operating pressure
0.15 MPa
0.1 MPa
Ambient temp. and operating
fluid temp.
0～60℃（No freeze）
Cushion
Rubber cushion
No. Air cushion
Angle adjustment
±5°
Rotation angle
80°～100°、170°～190°、350°～370°
Port size
M5×0.8
Rc 1/8，G 1/8，
NPT 1/8，NPTF 1/8
Supporting style
Basic type
Output(N･m)
0.3
0.75
1.8
3.1
5.3
Table 2 Specification-2
Size
Allowable kinetic energy
Safe adjustment range of
rotatingtime
Allowable kinetic energy （mJ）
Cushion
angle
No air
cushion
Rubber
cushion
Air
cushion
Rotation time
(s/90 ﾟ)
10
－
0.25
－
－
0.2～0.7
15
－
0.39
－
－
0.2～0.7
20
25
－
120
40°
0.2～１
30
48
－
250
40°
0.2～１
40
81
－
400
40°
0.2～１
Allowable kinetic energy of cushion type is the max. adsorbing energy when the cushion
needle adjustment is optimum. Operation with the speed lower than adjustment range lead
to cause stick clip or termination of operation.
Table 3 Specification-3
Size
Weight（g）
Internal capacity（cm３）
90゜
180゜
360°
90゜
180゜
360°
10
120
150
200
1.2
2.2
4.3
15
220
270
380
2.9
5.5
10.7
20
600
700
1000
7.1
13.5
26.3
30
900
1100
1510
12.1
22.9
44.7
40
1400
1600
2280
20.5
39
76
2020-10-1310:36
DI987004

1-2 Effective output
Fig.1 Effective output
1-3 Rotation range
When pressurized from the PortA, the shaft will rotate clockwise.
Flat face and parallel key position indicate B port is pressurized.
-18-
Key or flat
B Port
A Port
Angle
adjustment ±5°
Rotation range：360°
Rotation range：180°
Rotation range：90°
Angle
adjustment ±5°
Angle
adjustment ±5°
Key or flat
B Port
A Port
Key or flat
B Port
A Port
Angle
adjustment ±5
Angle
adjustment ±5°
2020-10-1310:36
DI987004