SMC Networks IN-777 Series User manual

PRODUCT NAME
Air servo cylinder
MODEL/ Series/ Product Number
IN-777 Series
Document No. K35-OMW0030-A

2
Contents
Front cover........................................................................................................................................................1
Contents.............................................................................................................................................................2
Safety Instructions..............................................................................................................................................3
1. Product Overview / Features........................................................................................................................12
2. Names and Functions of Parts.....................................................................................................................13
3. How to Order................................................................................................................................................14
3-1. Main Body .................................................................................................................................................14
3-2. Spare Parts...............................................................................................................................................15
4. Specification.................................................................................................................................................17
4-1. General Specification................................................................................................................................17
4-2. Electrical Specifications............................................................................................................................19
4-3. Air Circuit...................................................................................................................................................19
4-4. Dimensions................................................................................................................................................20
4-5. Construction..............................................................................................................................................25
5. Installation / Wiring.......................................................................................................................................26
5-1. Installation.................................................................................................................................................26
5-2. Electrical Wiring Diagram..........................................................................................................................27
6. Setting ..........................................................................................................................................................29
6-1. Piston Rod Movement Direction (DIP Switch No. 1) ................................................................................30
6-2. Bore size (DIP Switch No. 2, No. 3, No. 4)...............................................................................................30
6-3 Piston rod Movement at No Signal Operation...........................................................................................31
7. Operation Mode and Functions....................................................................................................................32
7-1. JOG Operation..........................................................................................................................................32
7-2. Calibration.................................................................................................................................................34
7-3. Target Position Operation (4-20 mA)........................................................................................................36
7-4. No Signal Operation..................................................................................................................................37
7-5. Emergency Stop........................................................................................................................................37
7-6. Residual Pressure Release ......................................................................................................................38
7-7. Functions of LED Alarm Display ...............................................................................................................39
7-8. Priority of Operation Mode........................................................................................................................40
7-9. Fail-safe function.......................................................................................................................................40
7-10. HART Communication protocol ..............................................................................................................40
7-11. Operation Examples (Timing Chart)........................................................................................................41
8. Replacement of parts...................................................................................................................................46
8.1.1. Disassembly of the controller assembly ................................................................................................46
8.1.2. Assembly of the controller assembly......................................................................................................47
8.2.1. Disassembly of the valve unit ................................................................................................................49
8.2.2.Assembly of the valve unit......................................................................................................................50
8.3.1. Disassembly of the servo valve .............................................................................................................51
8.3.2.Assembly of the servo valve...................................................................................................................52
8.4.1. Disassembly of the E-stop valve............................................................................................................53
8.4.2.Assembly of the E-stop valve.................................................................................................................54
8.5.1. Disassembly the position sensor ...........................................................................................................55
8.5.2.Assembly of the position sensor ............................................................................................................56
8.6.1. Disassembly of the air cylinder parts.....................................................................................................57
8.6.2 Disassembly the O-ring and the Packing................................................................................................60
8.6.3 Greasing for Packing, O-ring and parts ..................................................................................................62
8.6.4Assembly of the Packing and O-ring.......................................................................................................63
8.6.5 Assembly of the Air cylinder parts...........................................................................................................65
9. Alarm ............................................................................................................................................................69
10. Trouble Shooting........................................................................................................................................70
11. Limitations of Use.......................................................................................................................................72
11-1. Mounting..................................................................................................................................................72
11-2 Operating..................................................................................................................................................72

3
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: 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.

4
Safety Instructions
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.
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
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 regulation 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.
! 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.

5
Explanation of Symbols
Symbol
Definition
Things you must not do.
Instructions are provided as a drawing or sentence next to the symbol.
Things you must do.
Instructions are provided as a drawing or sentence next to the symbol.
Operator
(1) This Operation Manual is intended for those who have knowledge of machinery using pneumatic
equipment, and have sufficient knowledge of assembly, operation and maintenance of such
equipment.
Only those persons are allowed to perform assembly, operation and maintenance.
(2) Read and understand this Operation Manual carefully before assembling, operating or providing
maintenance to the product.
Safety Instructions
Warning
Disassembly
prohibited
Do not disassemble, modify (including the replacement of the circuit board) or
repair.
Otherwise, an injury or failure can result.
Do not
Do not operate the product outside of the specifications.
Do not use the product with flammable or harmful fluids.
Fire, malfunction, or damage to the system can result.
Please check the specifications before use.
Do not
Do not use in an atmosphere containing flammable or explosive gases.
Fire or an explosion may result.
The product is not designed to be explosion proof.
Instruction
If using the product in an interlocking circuit:
- Provide a double interlocking system, for example a mechanical system.
- Check the product for proper operation.
Otherwise malfunction can result, causing an accident.
Instruction
The following instructions must be followed during maintenance:
- Turn off the power supply
- Stop the air supply, exhaust the residual pressure in piping and verify that the air
is released before performing maintenance work.
Otherwise an injury can result.
Caution
Instruction
After completing maintenance, perform appropriate functional checks.
Stop operation if the equipment does not function properly.
Connect the grounding
cable
Provide grounding to improve the safety and noise resistance of the product.
Grounding should be as close as possible to the product and the ground wires
should be as short as possible.

6
■Handling Precautions
Follow the instructions given below for selecting and handling of the air servo cylinder.
●The instructions on design and selection (installation, wiring, environment, adjustment, operation,
maintenance, etc.) described below must be followed.
*Product specifications
Warning
- Use the specified voltage.
Otherwise failure or malfunction can result.
- Reserve a space for maintenance.
When installing the products, allow access for maintenance.
- Do not remove the label.
This can lead to incorrect maintenance, or misreading of the operation manual, which can cause
damage or malfunction to the product.
It may also result in nonconformity to safety standards.
●Product Handling
* Precautions for design
Warning
- There is a possibility of dangerous sudden action by air cylinders if force is changed due to twisting of
sliding parts of machinery. In such cases, human injury may occur; e.g., hands or feet caught in the
machinery, or damage to the machinery itself may occur. Therefore, the machine should be designed
to operate smoothly and avoid such dangers.
- A protective cover is recommended to minimize the risk of personal injury.
If the driven object or moving parts of the product will pose a hazard to humans, a construction that
prevents direct contact with the exposed area must be provided.
- Securely tighten all stationary parts and connected parts, so that they will not become loose.
When the product operates with high frequency or is installed where there is a lot of vibration, ensure
that all parts remain secure.
- Design the system so that an external force exceeding the maximum output is not applied to the
product. The product can break, causing a risk of personal injury or damage to equipment.
- The product generates a large force. Install on a sufficiently rigid mounting base, taking this force into
consideration. There is a risk of personal injury or damage to equipment.
- Consider a possible loss of power source. Measures should be taken to prevent personal injury and
damage to equipment in the event that there is a power malfunction to equipment controlled by air
pressure, electricity or hydraulics, etc.
- Consider the action when operation is restarted after an emergency stop or abnormal stop. Design
the machinery so that personal injury or damage to equipment will not occur upon restart of operation.
When the cylinder has to be reset at the starting position, install safety manual control equipment.

7
Caution
- Do not touch the cylinder during high speed and high frequency operation. When the cylinder is
operating at high speed and high frequency, the surface temperature of the cylinder tube increases,
and may cause injury to personnel.
- Do not use the air cylinder as an air-hydro cylinder.
If the working fluid of the air cylinder is turbine oil, oil leakage can result.
- The oil adhered to the cylinder is grease oil.
- The base oil of grease may seep out. The base oil of grease in the cylinder may seep out from the
tube, cover, or rod sliding part depending on the operating conditions (ambient temperature of 40oC or
more, pressurized condition, low frequency operation, etc.). Contact SMC especially if a clean
environment is required.
* Mounting
Caution
- Do not drop, hit or apply excessive shock to the product.
The product will be damaged, leading to failure and malfunction.
- Tighten to the specified tightening torque.
If the tightening torque is exceeded, the mounting screws can be broken.
If the screws are tightened to a different torque, IP67 will not be achieved.
- Be sure to connect the piston rod and the load so that their axial centers and movement directions
match. If they do not match, stress could be applied to the rod and the cylinder tube, causing wear on
the inner surface of the cylinder tube, the bushing, the rod surface, and damage to the seals.
- Do not scratch or dent the sliding parts of the cylinder tube or piston rod, by striking or grasping them
with other objects.
- Cylinder bores are manufactured to precise tolerances, even a slight deformation may cause a
malfunction. Moreover, scratches or dents, etc. on the piston rod sliding part may lead to damaged
seals and cause air leakage.
- Do not apply excessive lateral load to the piston rod.
Calculation for excessive lateral load:
Minimum operating pressure value after the device is mounted (MPa) = Cylinder's minimum operating
pressure (MPa) + {Load weight (kg) x Guide friction coefficient / Cylinder's cross section (mm2)}
If the product is found to operate smoothly with the calculated pressure, it can be judged that the
alignment of the guides have not created additional loading on the cylinder.
- Do not use the product until it has been verified that the equipment can operate properly. After
installation or repair, apply compressed air and power supplies to the equipment and perform
appropriate functional and leakage inspections to make sure the equipment is mounted properly.
- Do not let foreign matter such as cutting chips get into the product from the supply port. When the
product is installed on site, the debris from drilling mounting holes could get in the supply port of the
product. Take sufficient care to prevent this.
- Never mount the product in a location that will be used as a footrest.
The product may be damaged if excessive force is applied by stepping or climbing onto it.

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* Wiring (Including connecting/disconnecting of the connectors)
Warning
- Wire correctly.
Incorrect wiring can cause damage the product.
- Do not perform wiring while the power is on.
Incorrect wiring can damage the air servo cylinder and/or input/output equipment and malfunction can
result.
Caution
- Avoid repeatedly bending or stretching the cables, or placing a heavy load on them.
Applying repeated bending and tensile stress to the cable can break the circuit.
- Do not route wires and cables together with power or high voltage cables.
The product can malfunction due to interference of noise and surge voltage from power and high
voltage cables to the signal line.
Wiring of the air servo cylinder and the input/output device and the power cable or high voltage cable
should be separated from each other.
- Confirm proper insulation of wiring.
Poor insulation (interference with other circuits, poor insulation between terminals etc.) can apply
excessive voltage or current to the air servo cylinder and input/output device causing damage to them.
- When an air servo cylinder is installed in machinery/equipment, provide adequate protection against
noise by using noise filters, etc. Noise in signal lines may cause malfunction.
* Operating environment
Caution
- Select the proper type of enclosure according to the operating environment.
IP67 protection class is achieved when the following conditions are met.
Wire the units correctly using a cable and M23 connector compliant with IP67.
If using in an environment that is exposed to water splashes, please take protective measures, such
as using a cover.
- Do not use in an environment with oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning
solvent, even for a short time, the pressure switch may be adversely affected (damage, malfunction,
etc.).
- Do not use the product in an environment where corrosive gases or fluids can be splashed.
Otherwise damage to the air servo cylinder can result, causing malfunction.
- Do not use in an area where electrical surges are generated.
If there is equipment which generates a large amount of surge (solenoid type lifter, high frequency
induction furnace, motor, etc.) close to the air servo cylinder, this may cause deterioration or breakage
of the internal circuit of the air servo cylinder.Avoid sources of surge generation and crossed lines.
- The product is CE marked, but not immune to lightning strikes. Take measures against lightning
strikes in the system.
- Do not let foreign matter, such as wire debris, get inside the product.
This can damage the product causing failure or malfunction.
- Do not install this product in a location subject to vibration and impact.

9
Otherwise it can cause damage or malfunction.
- Do not use the product in an environment that is exposed to temperature cycle.
Heat cycles other than ordinary changes in temperature can adversely affect the internal components
of the product.
- Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, protect the product from the sunlight.
Failure or malfunction may occur.
- Keep within the specified ambient temperature range. Otherwise malfunction can result.
- Do not use in a location where the product is exposed to radiant heat from surrounding heat sources.
Otherwise malfunction can result.
* Air Supply
This product uses a metal seal type air servo valve. A mist separator with a filtration rating of 0.3 m or
less must be used in conjunction with this product. Do not use air containing mist or dust. It will cause a
decrease in performance.
Install a dryer (IDF series), air filter (AF/AFF series), or mist separator (AFM/AM series) to obtain clean
compressed air (air quality of Class 2.6.3 or higher according to ISO 8573-1: 2010 is recommended for
operation).
Warning
- Type of fluids
Applicable fluid is compressed air.
- When there is a large amount of condensate
Compressed air containing a large amount of condensate can cause the malfunction of pneumatic
equipment. An air dryer or mist separator should be installed upstream from the filters.
- Drain flushing
If condensate in the drain bowl is not emptied on a regular basis, the bowl will overflow and this may
cause the 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.
- Types of air
Do not use compressed air which contains chemicals, synthetic oils containing organic solvents, salts
or corrosive gases, etc., as this can cause damage or a malfunction.
Caution
- Install an air filter.
Install an air filter upstream near the valve. Select an air filter with a filtration size of 0.3μm or smaller.
- Take measures to ensure air quality, such as installing an aftercooler, air dryer, or water separator.
Compressed air that contains excessive foreign material may cause malfunction of valves and other
pneumatic equipment. Therefore, take appropriate measures to ensure air quality, such as by
providing an aftercooler, air dryer, or water separator.
- Recommended pneumatic circuit example
Connected to air servo cylinder
Dryer
IDF
Air filter
AF
Mist
separator
AM
Regulator
AR
IR

10
* Adjustment and Operation
Caution
- Set the switches using a small flat blade screwdriver.
Using an unsuitable tool may lead to damage to the setting switch.
- Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
For details of each setting, refer to 6. Setting of this Operation Manual.
* Piping
Caution
- Preparation before piping
Flush the piping enough before connecting piping to the supply port.
Do not allow water or dust to enter the pressure release port and/or the main exhaust ports when
piping. Confirm that the piping is securely connected before supplying compressed air.
- Wrapping of sealant tape
When installing piping, avoid chips and sealing materials from piping screws entering the inside of
equipment. Also, if pipe tape is used, leave 1.5 to 2 thread ridges exposed at the end of the threads.
* Maintenance
Warning
- Turn off the power supply, stop the air supply, exhaust the residual pressure in the piping and
cylinder, and verify the release of air, before performing maintenance. Otherwise, unintended
malfunction of system components can result.
- Perform regular maintenance and inspections. There is a risk of unexpected malfunction due to
malfunction of the equipment.
- After maintenance is complete, perform appropriate functional inspections. Stop operation if the
equipment does not function correctly. Otherwise, unintended malfunction of system components can
result.
Caution
- Do not use solvents such as benzene, thinner etc. to clean the product. These can damage the
surface of the body and erase the markings on the body. Use a soft cloth to remove stains. For
heavy stains, use a cloth soaked with diluted neutral detergent and fully squeezed, then wipe up the
stains again with a dry cloth.
Wrap this way.
Sealant tape
Leave 2 threads exposed.

11
- Check items
1. Smooth operation
2. Changes in piston speed and cycle time
3. Abnormal stroke
4. Looseness of the cylinder mounting bolt
5. Looseness of cylinder mounting frame or excessive deflection
6. Internal and external leakage (Change in output)
7. Damage to the piston rod sliding surface
8. Clogging and discharge drainage of the air filter
When any abnormality is found as a result of the inspections shown above, eliminate the causes and
take necessary measures such as retightening screws. Contact SMC sales if the cylinder needs to be
repaired.
Warning
- Maintenance should be performed according to the items above. Perform additional inspections as
necessary. Improper handling can cause damage or malfunction of equipment and machinery.
- Removal of equipment and supply/exhaust of compressed air
When equipment is removed, first confirm that measures are in place to prevent workpiece from
dropping and/or equipment running away, etc. Cut the supply pressure and electric power and
exhaust all compressed air from the system. Before restarting the equipment, confirm that measures
are taken to prevent sudden action.

12
1. Product Overview / Features
Product Overview
The positioning operation of this air servo cylinder can be accurately controlled. It can be used for
positioning applications which require high thrust. It can be easily set up with simple interface, function and
configuration.
Features
1. Positioning based on a command from the host PLC can be performed (Repeated positioning
accuracy: within +/-0.5 mm)
2. Cylinder and controller are integrated
3. Compliant dust and water proof to IP67
4. Piston rod stop position maintained during power failure
5. Alarm LED display (Option)
6. Calibration
7. JOG operation
8. Piston rod position can be provided as an output signal
9. Manual air exhaust

13
2. Names and Functions of Parts
Name
Function
Controller
Controls the drive of the air servo cylinder.
Panel
Forms part of the controller body and protects the cover tube from foreign
matter.
Switch cover
For access to the switches in the controller.
LED alarm display
LED display to indicate alarm condition.
Power supply connector
Connector for power supply and input/output signals. (Size:M23)
Cover tube
Protects the internal valve unit and controller assembly.
Air supply port
Port for connecting the air supply
R1, R2 ports
Air exhaust ports for air servo cylinder operation
R3 port
Port for releasing pressure in the cover tube
Cylinder tube
Component for pressure in the cylinder chamber
FA port
When using the optional fail safe air circuit, the piping needs to be connected to
these 3 ports.
Please refer to the fail-safe air circuit for how to connect piping when the
fail-safe air circuit is used.
FB port
FU port
Pipe
Flow passage to supply air to the cylinder rod end
Flange
Mounting bracket for installing the product
Piston rod
Driving part of the cylinder
Residual pressure release
valve
Valve for releasing the residual pressure in the cylinder
Rotary switch
Switch for setting the piston rod travel speed
DIP switch
Switch for setting the travel direction and signal operation
Panel
LED alarm display
Cover tube
Switch cover
FB port
Power supply connector
Pipe
Flange
Piston rod
Cylinder tube
Air supply port
Residual pressure
release valve
Rotary switch
DIP switch
Controller
R2 port
FA port
R1 port
R3 port
FU port

14
3. How to Order
3-1. Main Body
(1) Air servo cylinder
Bore size
125
125 mm
160
160 mm
200
200 mm
250
250 mm
320
320 mm
LED alarm display
L
With LED alarm display
Port thread type
TF
G
Communication protocol
H
4-20mA/HART communication
Rod boot
J
Silicone rubber material
Nil
Without rod boot
Stroke
Bore size(mm)
Stroke(mm)
125
250
160
200,300
200
200,300
250
350,450
320
200,350,530
Mounting
F
Rod flange style
Made to order
IN-777
-
-
-
160
L
H
F
J
300
TF
-

15
3-2. Spare Parts
(1) Controller assembly
(2) Valve unit
(3) Servo valve
(One piece)
(4)Pilot valve
(5)Position sensor unit
Cylinder stroke
200
200 mm
250
250 mm
300
300 mm
350
350 mm
450
450 mm
530
530 mm
Communication protocol
H
4-20mA/HART communication
LED alarm display
L
With LED alarm display
LED alarm display
XT581-V-C-X001
IN-777P-010AS
V211KT-5LOZ-X48
IN-777P--830AS
200
Servo valve
Pilot valve
Valve unit
IN-777P- -410AS
L
H

16
(6)Rod boot
Bore size (mm)
Stroke (mm)
Part number
125
200
C96A2G-1461V-R
160
200
C95A6G-471AQ-R
300
200
200
C95B0G-472AQ-R
300
250
350
C95B5G-533AQ-R
450
320
200
C1SC2G-1468V-R
350
C1SC2G-1470V-R
530
(7)Seal kit
Bore size (mm)
125
(13) Tube gasket：2 pcs, (16) Piston seal：1 pc,
(25) Rod seal：1 pc, (28)Wear ring：1 pc,
(31) Pipe O-ring：2 pcs
160
200
250
320
(13) Tube gasket：2 pcs, (16) Piston seal：1 pc,
(25) Rod seal：1 pc, (28) Wear ring：1 pc,
(31) Pipe O-ring：2 pcs, (35) Wiper ring：1 pc
*Seal kit includes a grease pack.
*The numbers in a parenthesis correspond to the component numbers in the cross-section construction
drawing on page 25.
IN-777P--910AS
125

17
4. Specification
4-1. General Specification
Item
Specification
Action
Double acting, Single rod
Fluid
Air
Filtration of compressed air
0.3 μm or less
Proof pressure
1.2 MPa
Operating pressure range
0.55 MPa to 0.8 MPa
Repeated stop position accuracy
+/-0.5 mm or less *1
Maximum speed
Ø125 to Ø250: 155 mm/sec
Ø320: 100 mm/sec
Ambient/fluid temperature
-20 to 60oC (No freezing)
Operating humidity
35 to 85% (No condensation)
Installation altitude
0 m to 5,000 m
Housing protection
IP67
Standard
CE, RoHS compliant
Weight
Refer to Table 1
Lubrication
Non-lube
Mounting orientation
Vertical downward, Vertical upward
Vibration resistance
Amplitude or acceleration: 1.5 mm or 3 G
Frequency: 5 to 100 Hz
Direction: X,Y,Z 3 times each
Sweep time, sweep cycle: 12 min・10 cycle (De-energized)
Impact resistance
Acceleration: 15 G
Duration of shock pulse, Pulse shape: 11 ms, sinusoidal
waveform
Direction: X,Y,Z 3 times each (De-energized)
Allowable lateral load at rod end
Refer to Table 2
Theoretical output・Work load
Refer to Table 3
Power supply connector (Body)
M23 19 pin male connector
*1 Based on the SMC's test conditions

18
Table 1 Weight
Bore size (mm)
Stroke (mm)
Weight (kg)
125
250
24
160
200
37
300
43
200
200
53
300
61
250
350
86
450
97
320
200
100
350
129
530
163
Table 2 Allowable lateral load at rod end
Bore size (mm)
Allowable lateral load at rod end (N)
125
70
160
90
200
140
250
160
320
230
Table 3 Theoretical output・Maximum work load
Bore size (mm)
Theoretical output (N)
Maximum work load (kg) *2
Operating
direction
Operating pressure (MPa)
0.55
0.8
125
IN
6,400
9,200
160
OUT
6,800
9,900
160
IN
10,400
15,100
240
OUT
11,100
16,100
200
IN
16,600
24,200
240
OUT
17,300
25,200
250
IN
26,000
37,700
300
OUT
27,000
39,300
320
IN
42,700
62,100
300
OUT
44,300
64,400
*2 Based on the SMC's test conditions

19
4-2. Electrical Specifications
Item
Specification
Power supply
Applied voltage:DC24 V±10%
Current consumption: 0.5 A (Maximum 2.5 A)
Control system
Closed loop
Positioning sensor
Absolute
Analog input signal
DC 4 to 20 mA
Analog input impedance
Approx. 250 Ω
Analog output signal
DC 4 to 20 mA
Maximum load impedance (Analog output)
500 Ω
Voltage across terminals
DC12 V
(Input impedance worth 600 Ωat DC20 mA
Switch input signal
4 points, Connected to DC+24 V+/-10%
Current consumption: 10 mA or less
Switch output signal
5 points, N-type MOSFET Open source output
Maximum load current: 100 mA
4-3. Air Circuit
*1) IN-777 series can be operated with a fail-safe mode. In order to operate the cylinder with fail-safe mode,
FA, FB and FU port piping is necessary. When the fail-safe function is not used, do not remove the plugs
from FA, FB and FU ports. Refer to reference document “Example of fail-safe circuit for air servo cylinder
IN-777” for the pneumatic circuit to use when the fail-safe function is used.
Fail-safe port
(Rod side air supply) (*1)
Fail-safe port
(Head side air supply) (*1)
Fail-safe port
(For connection to
a fail-safe circuit)
(*1)
Air supply port
Air exhaust port R3
P
FA
FB
Air exhaust port R2
Air exhaust port R1
FU
EA
EB
Air cylinder
Residual pressure
release valve
Residual pressure
release valve
Shutoff valve
Shutoff valve
Rod side servo valve
Head side servo valve
Pilot valve
G
U

20
4-4. Dimensions
(1) Bore size: Ø125
Product number
Bore size (mm)
Stroke (mm)
IN-777-125TF-250F-HL
125
250