SMC Networks CRB10, CRB15, CRB20, CRB30, CRB40 Operation Manual
...
文書 No.JCRB-OM00003
Model name
ROTARY ACTUATOR
Standard Type
Part number / Series
C
RB10
to
40-
INDEX
Precautions for Safety Front matter
1. Product Description 1
How to order 1
Specifications 1
Effective Torque 2
Chamfer Position and Rotation Range 3
2. Internal Construction and Description of Individual Parts 4
Standard Type (Size 10, 15) 4
Standard Type (Size 20, 30, 40) 5
With Auto Switch 6
Auto Switch Proper Mounting Position 7
Operating Angle and Hysteresis Angle 7
3. Basic Circuit 8
Circuit Configuration 8
Preferred Components 8
4. Setting 8
Shaft Load Limit 9
Use of Shaft Coupling 9
How to Mount Loads 10
Mounting 10
Adjusting the rotating angle 11
Operating environment 12
5. Setting of Rotation Time 13
Moment of Inertia 13
Kinetic Energy 15
Eternal Stopper 16
6. Maintenance and Inspection 17
Standard Type (Size 10, 15) 17
Standard Type (Size 20, 30, 40) 18
With Auto Switch (Size 20, 30, 40) 19
7. Troubleshooting 20
Notice on Trouble and Troubleshooting 21
前付 1
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)
Japan Industrial Standards (JIS)
*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
Operator error could result in injury or equipment damage.
Warning
Operator error could result in serious injury or loss of life.
Danger
In extreme conditions, there is a possibility of serious injury or loss of life.
前付 2
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.
Caution
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.
前付 3
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.
＊2)
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.
＊
2)
Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad or failure due
to the deterioration of rubber material are not covered by the limited warranty.
Compliance Requirements
When the product is exported, strictly follow the laws required by the Ministry of Economy,
Trade and Industry (Foreign Exchange and Foreign Trade Control Law).
前付 4
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.
Failure to provide such measures could accelerate the movement, which may be hazardous
to humans, machinery, and other equipment.
(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) Make sure that the secured portions will not loosen.
Be sure 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 actuator cushion
to absorb the shock. Therefore, provide a speed-reduction circuit to reduce the rotary actuator 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 an actuator is used as clamping mechanism, there is a danger of workpiece 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 equipment that relies on power sources such as compressed air, electricity, or hydraulic pressure, adopt
countermeasures to prevent the equipment from causing a hazard to humans or damage to the 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 actuator
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 actuator 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 actuator will not cause a hazard to
humans or damage the equipment.
(10) Consider the action of the rotary actuator when restarting after an emergency stop.
Devise a safe design so that the restarting of the rotary actuator will not pose a hazard to humans or damage
the equipment. Install manually controlled equipment for safety when the actuator 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 actuator speed reduction capability could become
severely affected, which could pose a hazard to humans and damage the machinery and equipment.
Warning
前付 5
(12) Select a speed within the product’s allowable energy value.
If the 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.
For a product without an external stopping mechanism, if a 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 actuator with the aim of synchronized movement.
One of the actuators 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 external leakage of lubricant could have an adverse effect.
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 when using with an auto switch.
Selection
(1) Do not use below the 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 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) 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.
(4) Do not use the product under hydraulic pressure.
The product will be damaged if it is used by applying hydraulic pressure.
(5) Do not use in a location where there are many temperature fluctuations.
When using in lower temperature applications, take care not to allow frost inside the cylinder.
Operation may be unstable.
(6) Perform speed adjustment in the environment in which the product is to be used.
Speed adjustments may be necessary if the environmental conditions vary.
Caution
前付 6
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 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 actuator could
operate suddenly, which could pose a hazard to humans and damage the machinery and equipment.
(6) 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.
(7) 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.
(8) If shaft couplings are to be 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.
(9) Do not apply a load that exceeds the values given in the catalog.
If a load that exceeds the allowable values is applied to the product, it could lead to equipment malfunction, a
hazard to humans, and damage to the machinery and equipment.
(10) Place an external stopper in a position away from the rotating shaft.
If the stopper is placed near the rotating shaft, 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 shaft. This will lead
to the breakage of the rotating shaft 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.
Warning
前付 7
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 θ at the operation end may result in
the torque of the rotary actuator 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 θ at the operation end, to make sure the load
generated does not exceed the allowable value for the product.
(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.
(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 output shaft by securing the body or hit the body by securing the output shaft.
These actions could cause the table to bend or damage the bearing. When a load must be coupled to the output
shaft, secure the output shaft.
(3) Do not step directly onto the table or on the equipment that is coupled to the table.
Standing directly on the output shaft could cause the output shaft 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.
ストッパ
Rotary table
Stopper
Caution
前付 8
Piping
(1) Refer to the Fittings and Tubing Precautions (Best Pneumatics No.6) 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 pipe tape is used, leave 1.5 to 2 thread ridges exposed at the end of the threads.
Speed and cushion 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.
For products with shock absorbers, when the shock absorber stops moving before reaching the stroke
end by using a stopper mechanism with the objective of shortening tact time, be sure the shock
absorber is stopped in a position where it has adequately absorbed the kinetic energy.
Failure to do so can result in damage to equipment.
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.
Pipe tape
Leave approx.
2 threads exposed
Winding
direction
Caution
Warning
Warning
前付 9
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.
(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 actuator. 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.
Operating Environment
(1) Do not use in an atmosphere containing corrosive gases, chemicals, sea water, water, steam, or where
there is direct contact with any of these.
Refer to the construction diagram for information on the materials used in the rotary actuator.
(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.
Warning
Caution
Warning
前付 10
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 moisture 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.
Warning
Caution
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