SMC Networks XT477-4-X2 User manual

XT477-SMU01EN
Page 1 of 2
Instruction Manual
Load Sensor
Series: XT477 Model: XT477-4-X2
The intended use of this product is to covert a load to output pressure.
It is possible to construct an all air balance circuit by combining it with
an air cylinder and an air operated type precision regulator, etc.
Validated according to ISO 13849, see section 2.
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)*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 10218-1: Manipulating industrial robots -Safety.etc.
This manual contains essential information for the protection of users
and others from possible injury and/or equipment damage.
Read this manual before using the product, to ensure correct
handling, and read the manuals of related apparatus before use.
Keep this manual in a safe place for future reference.
To ensure safety of personnel and equipment the safety instructions
in this manual must be observed, along with other relevant safety
practices.
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
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 catalogue
information, with a view to giving due consideration to any possibility
of equipment failure when configuring the equipment.
Only personnel with appropriate training should operate
machinery and equipment.
1 Safety Instructions - continued
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.
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.
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, combustions 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 specification described in the product
catalogue.
3) An application which could have negative effects on people,
property, or animals requiring special safety analysis outside the
scope of ISO 13849 described in this document.
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.
Always ensure compliance with relevant safety laws and
standards.
All electrical work must be carried out in a safe manner by a qualified
person in compliance with applicable national regulations.
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.
2 Specifications
2.1 General Specifications
Model
XT477-4-X2
Max. operating pressure
0.6 MPa
Output pressure
0.05 to 0.5 MPa
Input/output characteristics
Refer to Figure 1
Applicable cylinder diameter
63 mm
Recommended load weight
100 kg or less(Note１)
Ambient and fluid temperature
-5 to +60 °C (no freezing)
Fluid
Air
Filtration
5 μm filtration or smaller (Refer to 3.4)
Lubrication
Not required
Port size
2 x Rc1/8
Construction
Relieving type
Standard
Conforms to basic and well-tried safety
principles of ISO13849-2:2012
Min frequency
1 per 30 days
Max frequency
15 times a minute
B10
790,000 cycles(Note2)
B10D
1.58 million cycles(Note2)
Weight
2.2 kg
Table 1
2 Specifications –continued
Notes:
Note 1) This value takes inertia into consideration. Please avoid
eccentric load as much as possible.
Note 2) Under SMC test conditions. The B10 figure is estimated from
SMC life tests. The B10Dfigure is derived from B10 using the
assumption in ISO 13849-1:2015 Annex C. Contact SMC for
details.
2.2 Input/output characteristics
Figure 1
2.3 Operating principle
If a load is applied to the transmission plate B ①, this force will be
transmitted to the shaft ③via the transmission plate A ②and the
diaphragm ④and valve ⑤will be pushed down.
As a result, part of the supply pressure will be output to the OUT side.
The output air pressure acts on the lower side of the diaphragm ④,
which counteracts the force pushing down on the diaphragm by the
load, this becomes the set pressure. If the load decreases here, the
diaphragm ④will be pushed up by the output pressure and the valve
⑤will close and then the exhaust valve ⑥will open.
As a result, the excess pressure on the OUT side will be released to
atmosphere. Thus the output pressure changes linearly by the load
applied.
Figure 2
Caution
Special products might have specifications different from those shown
in this section. Contact SMC for specific drawings. These drawings will
give the appropriate specification details and compliance with the safety
principles of ISO 13849, if applicable.
3 Installation
3.1 Installation Warning
Do not install the product unless the safety instructions have been
read and understood.
Install and remove any work piece when the supply pressure is
applied.
If a load sensor fails and danger to the system can be predicted,
install a safety circuit in the system to avoid danger.
Use the mounting hole (φ19) in the mounting bracket on top of the
load sensor to mount onto the cylinder head.
3 Installation –continued
Use the screw （M22×1.5) on the transmission plate B at the bottom
of the load sensor to mount a jig to hang the work piece.
When mounting, take measures to prevent loosening at the mounting
screw section.
Figure 3
3.2 Environment Warning
Do not use in an environment where corrosive gases, chemicals, salt
water or steam are present.
Do not use in an explosive atmosphere.
Do not expose to direct sunlight. Use a suitable protective cover.
Do not install in a location subject to vibration or impact. Check the
product specifications.
Do not mount in a location exposed to radiant heat.
3.3 Piping Caution
Before piping make sure to clean up chips, cutting oil, dust etc.
When installing piping or fittings, ensure sealant material does not
enter inside the port. When using seal tape, leave 1.5 to 2 threads
exposed on the end of the pipe/fitting.
Tighten fittings to the specified tightening torque.
3.4 Air source Caution
Install an air filter on the supply side near this product. Select filtration
of 5μm or less.
Compressed air containing a large amount of drain can cause this
product or other air compressor to malfunction. Install an after-cooler,
air drier or drain catch as countermeasures. Avoid using a lubricator.
A large amount of carbon powders generated from the compressor
can stick inside this product resulting in malfunction.
3.5 Operation Caution
Do not use this load sensor outside the specifications because it can
cause a product failure.
Load [N]
Output pressure [MPa]
①Transmission
plate B
②Transmission
plate A
③Shaft
④Diaphragm
⑤Valve
⑥Exhaust
valve
SUP
OUT
①Transmission
plate B
②Transmission
plate A
ø19
BLEED
BLEED
SUP
OUT
2xRc1/8
M22x1.5
Operation handle
Mounting position
M8x1.25
ORIGINAL INSTRUCTIONS

XT477-SMU01EN
Page 2 of 2
4 Settings
4.1 Settings
The XT477-4-X2 load sensor can be used as a balancer by combining
with an air cylinder (bore size: 63 mm), an air operated type precision
regulator and a speed controller.
Figure 4
Caution
The only air cylinders applicable as balancers are those with a bore
size of 63 mm.
If not fully balanced, fine-tune pressure with an air operated type
precision regulator.
If hunting occurs in the circuit, install a speed controller and a tank on
the output side of the load sensor.
5 How to Order
Model no: XT477-4-X2
6 Outline Dimensions (mm)
7 Maintenance
7.1 General Maintenance Caution
Not following proper maintenance procedures could cause the
product to malfunction and lead to equipment damage.
If handled improperly, compressed air can be dangerous.
Maintenance of pneumatic systems should be performed only by
qualified personnel.
Before performing maintenance, turn off the power supply and be
sure to cut off the supply pressure. Confirm that the air is released to
atmosphere.
After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
If any electrical connections are disturbed during maintenance,
ensure they are reconnected correctly and safety checks are carried
out as required to ensure continued compliance with applicable
national regulations.
Do not make any modification to the product.
Do not disassemble the product, unless required by installation or
maintenance instructions.
8 Limitations of Use
8.1 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(1). 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 catalogue for
the particular products.
(1) 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 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.
8 Limitations of Use –continued
Warning
Any use in an ISO 13849 system must be within the specified limits
and application conditions. The user is responsible for the
specification, design, implementation, validation and maintenance of
the safety system (SRP/CS)
9 Contacts
AUSTRIA
SMC Pneumatik GmbH,Girakstrasse 8, AT-2100
Korneuburg, Austria
BELGIUM
SMC Pneumatics N.V. ⁄ S.A. Nijverheidsstraat 20, B-2160
Wommelgem, Belgium
BULGARIA
SMC Industrial Automation Bulgaria EOOD, Business
Park Sofia, Building 8-6th floor, BG-1715 Sofia, Bulgaria
CROATIA
SMC IndustrijskaAutomatikad.o.o. ZagrebačkaAvenija
104,10 000 Zagreb
CZECH REP.
SMC Industrial Automation CZ s.r.o. Hudcova 78a, CZ-
61200 Brno, Czech Republic
DENMARK
SMC Pneumatik A ⁄ S,Egeskovvej 1, DK-8700 Horsens,
Denmark
ESTONIA
SMC Pneumatics Estonia Oü,Laki 12, EE-10621 Tallinn,
Estonia
FINLAND
SMC Pneumatics Finland Oy, PL72, Tiistinniityntie 4, SF-
02031 Espoo, Finland
FRANCE
SMC Pneumatique SA.1, Boulevard de Strasbourg, Parc
Gustave Eiffel, Bussy Saint Georges, F-77607 Marne La
ValleeCedex 3, France
GERMANY
SMC Pneumatik GmbH, Boschring 13-15, 63329
Egelsbach, Germany
GREECE
SMC Italia Hellas Branch, Anagenniseos 7-9-P.C. 14342
N.Philadelphia, Athens, Greece
HUNGARY
SMC Hungary IpariAutomatizálásiKft.Torbágy u. 19, HU-
2045 Törökbálint, Hungary
IRELAND
SMC Pneumatics (Ireland) Ltd.2002 Citywest Business
Campus, Naas Road, Saggart, Co. Dublin, Ireland
ITALY
SMC Italia S.p.A.Via Garibaldi 62, I-20061Carugate,
(Milano), Italy
LATVIA
SMC Pneumatics Latvia SIA, Dzelzavas str. 120g, Riga,
LV-1021, Latvia
LITHUANIA
UAB “SMC Pneumatics”, Oslo g. 1, LT-04123 Vilnius,
Lithuania
NETHERLANDS
SMC Pneumatics B.V.De Ruyterkade 120, NL-1011 AB
Amsterdam, the Netherlands
NORWAY
SMC Pneumatics Norway AS, Vollsveien 13 C,
GranfosNæringspark, N-1366 Lysaker, Norway
POLAND
SMC Industrial Automation, Polska Sp z o.o.
02-826 Warszawa, ul. Poloneza 89, Poland
PORTUGAL
SMC España S.A. Zuazobidea 14, 01015 Vitoria, Spain
ROMANIA
SMC Romania S.r.l. StrFrunzei 29, Sector 2, Bucharest,
Romania
RUSSIA
SMC Pneumatik LLC. Business centre, building 3, 15
Kondratjevskij prospect, St.Petersburg, Russia, 195197
SLOVAKIA
SMC PriemyselnáAutomatizáciaSpols.r.o. Fantranská
1223, Teplickanadvahom, 01301, Slovakia
SLOVENIA
SMC IndustrijskaAvtomatikad.o.o. Mirnskacesta 7, SLO-
8210 Trebnje, Slovenia
SPAIN
SMC España S.A. Zuazobidea 14, 01015 Vitoria, Spain
SWEDEN
SMC Pneumatics Sweden AB,Ekhagsvägen 29-31, SE-
141 71 Segeltorp, Sweden
SWITZERLAND
SMC Pneumatik AG,Dorfstrasse 7, Postfach, 8484
Weisslingen, Switzerland
TURKEY
SMC PnömatikSanayiTicaretveServis A.Ş.
GülbaharCaddesi, Aydın Plaza, No: 9 ⁄ 4 Güneşli –
34212 , Istanbul
UK
SMC Pneumatics (U.K.) Ltd. Vincent Avenue, Crownhill,
Milton Keynes, Buckinghamshire MK8 0AN, United
Kingdom
URL :
http// www.smcworld.com (Global) http// www.smceu.com (Europe)
'SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo
101 0021
Specifications are subject to change without prior notice from the manufacturer.
© 2016 SMC Corporation All Rights Reserved.
Template DKP50047-F-085D
Mist separator Regulator
Speed
controller
Air operated type
precision regulator
Cylinder
61
BLEED
BLEED
Ø19
SUP
OUT
2xRc1/8
M22x1.5
117
Operation handle
Mounting position
M8x1.25
58.9
119
157