SMC Networks DXT1215 User manual

DXT1215-TF222-009EN
Page 1 of 2
Instruction Manual
High Speed Pilot Operated 5 Port Solenoid
Valve
Series DXT1215
The intended use of this valve is to control the movement of an actuator.
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: Robots and robotic devices - Safety requirements for
industrial robots - Part 1: Robots.
•Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•Keep this manual in a safe place for future reference.
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
•Always ensure compliance with relevant safety laws and
standards.
•All 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 only. Do
not use in residential premises.
2 Specifications
2.1 Valve specifications
Valve type
Rubber seal
Fluid
Air
Internal pilot operating
pressure range [MPa]
2 position
single
0.3 to 0.6
Ambient and fluid temperature [C]Note 1)
-10 to 60 (No freezing)
Minimum operating frequency
1 cycle / 30 days
Maximum operating frequency [Hz]
200
Duty cycle
Continuous
(1.5W standard power saving type)
Flow rate
Refer to catalogue
Response time
Manual override
Non-locking push type
Pilot exhaust type
Internal pilot
Common exhaust for main & pilot valve
Lubrication
Not required
Mounting orientation
Unrestricted
Impact/vibration resistanceNote 2)
150 / 30
Enclosure (based on IEC60529)
IP67
Weight
Refer to catalogue
Table 1.
2 Specifications - continued
Note 1) The upper limits of the ambient and fluid temperatures vary depending on
the operating frequency. (Refer to figure1.) If a follow-up operation is
performed at a duty ratio of 50% or higher, the upper limit value may
change. Please contact SMC for further details.
Note 2) Impact resistance:No malfunction occurred when it was tested with a drop
tester in the axial direction and at right angles to the main valve & armature;
in both energized & de-energised states and for every time in each
condition. (Values quoted are for a new valve).
Vibration resistance:No malfunction occurred in a one-sweep test between
45 and 2000 Hz. Tests are performed at both energized and de-energized
states in the axial direction and at right angles to the main valve & armature.
(Values quoted are for a new valve).
Figure 1. The upper limit of ambient and fluid temperature
2.2 Solenoid specifications
Coil rated voltage [VDC]
24
Electrical entry
M8 connector
Allowable voltage fluctuation [V] Note 1)
-5 to 10% of rated voltage
Power consumption [W] Note 2, 3)
With power
saving circuit
1.5
(Inrush 6, Holding 1.5)
Surge voltage suppressor
Diode
Indicator light
LED
Table 2.
Note 1) Valve state is not defined if electrical input is outside of specified operating
ranges.
Note 2) DXT1215 series available as power saving type only.
Note 3) Refer to section 3.8 for details.
2.3 Indicator light
This valve has an indicator light and surge voltage suppressor. The light
turns red when the solenoid is energized.
Figure 2. Light indication
2.4 Special products Warning
Special products (-X) might have specifications different from those
shown in this section. Contact SMC for specific drawings.
3 Installation
3.1 Installation Warning
•Do not install the product unless the safety instructions have been read
and understood.
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 in excess of
the product’s specifications.
•Do not mount in a location exposed to radiant heat that would result in
temperatures in excess of the product’s specifications.
3 Installation - continued
•Products with compliant with IP67 enclosures are protected against
dust and water; however, these products cannot be used in water.
•Products compliant to IP67 satisfy the specifications by mounting the
product appropriately. Be sure to read the Specific Product
Precautions for each product.
•Do not use in high humidity environment where condensation can
occur.
•If using in an atmosphere where there is possible contact with water
drop-lets, oil, weld spatter, etc., take suitable preventive measures.
•Contact SMC for altitude limitations.
3.3 Piping Caution
•Before connecting 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 thread exposed
on the end of the pipe/fitting.
•For internal pilot valves, even though the inlet pressure is within the
operating pressure range, when the pipe diameter is restricted due to
size reduction of supply port 1(P), the flow will be insufficient. In this
case, the valve does not switch completely, and the cylinder may
malfunction.
•Tighten fittings to the specified tightening torque.
Connection thread size (R, NPT)
Tightening torque [N∙m]
1/8
3 to 5
Table 3.
3.4 Lubrication Caution
•SMC products have been lubricated for life at manufacture, and do not
require lubrication in service.
•If a lubricant is used in the system, refer to catalogue for details.
3.5 Air supply Warning
•Use clean air. If the compressed air supply includes chemicals,
synthetic materials (including organic solvents), salinity, corrosive gas
etc., it can lead to damage or malfunction.
Caution
•Install an air filter upstream of the valve. Select an air filter with a
filtration size of 5μm or smaller.
3.6 Manual override Warning
•Regardless of an electric signal for the valve, the manual override is
used for switching the main valve. Since connected equipment will
operate when the manual override is activated, confirm that conditions
are safe prior to activation.
•Refer to the catalogue for details of manual override operation.
Figure 3.
3.7 One-touch fittings
3.7.1 Tube attachment and detachment
Caution
Refer to the Specific Precautions in the catalogue.
3.7.2 Precautions on other tube brands
Caution
When using non-SMC brand tubes, refer to the Specific Product
Precautions in the fittings and tubing catalogue.
3.8 Electrical circuits
3.8.1 With power saving circuit (non-polar type)
•Power consumption is decreased by approximately 1/4 of the amount
required at start up by reducing the wattage required to hold the valve
in an energized state.
(Effective energizing time is over 5 ms at 24 VDC).
3 Installation - continued
Figure 4. With power saving circuit.
•The above circuit reduces the power consumption for holding in order
to save energy.
•Refer to the catalogue for additional information.
3.9 Wiring
Caution
•Do not use a tool to mount the connector as this may cause damage.
Tighten the connector by hand (torque of 0.4 N∙m to 0.6 N∙m).
•Applying excessive force on the cable connector will result in it no
longer being able to satisfy IP67 requirements. Please use caution and
refrain from applying 30 N or more force on the connector.
•Refer to catalogue for additional information.
Figure 5. Solenoid valve side pin wiring diagram
Note: There is no grounding for this product.
Figure 6. Connector cable
3.10 Residual voltage Caution
•The suppressor arrests the back EMF voltage from the coil to a level
in proportion to the rated voltage.
•Ensure the transient voltage is within the specification of the host
controller.
•In the case of a diode, the residual voltage is approximately 1 V.
3.11 Countermeasure for surge voltage
Caution
•At times of sudden interruption of the power supply, the energy stored
in a large inductive device may cause non-polar type valves in a de-
energised state to switch.
•When installing a breaker circuit to isolatethe power, consider to install
a surge absorption diode across the output of the breaker.
3.12 Extended period of continuous energization
Caution
If a valve will be continuously energized for an extended period of time or
is mounted in a control panel, the temperature of the valve will increase
due to the heat generated by the coil assembly. This will likely adversely
affect the performance of thevalve and any nearby peripheralequipment.
3.13 One-touch fittings Caution
When fittings are used, they may interfere with one another depending
on their types and sizes. Therefore, the dimensions of the fittings to be
used should first be confirmed in their respective catalogues.
4 How to Order
Refer to catalogue for ‘How to Order’ or to product drawing for special
products.
5 Outline Dimensions
Refer to catalogue for outline dimensions.
ORIGINAL INSTRUCTIONS
Operating frequency [Hz]
Ambient and fluid
temperature
(upper limit) [°C]
Solenoid
Light: red
Manual override
Coil
Diode
Energy saving IC
LED
Blue: 3
Brown: 1
Sheath
Covering
Black: 4

DXT1215-TF222-009EN
Page 2 of 2
6 Maintenance
6.1 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 besure
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 electricalconnections 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.
•When the equipment is operated after remounting or replacement, first
confirm that measures are in place to prevent lurching of actuators,
etc. Then, confirm that the equipment is operating normally.
•Operate the valve at least once every 30 days.
7 Limitations of Use
7.1 Limited warranty and disclaimer/compliance requirements
Refer to Handling Precautions for SMC Products.
Warning
7.2 Effect of energy loss on valve switching
The use of 2-position single valves with air returned or air/spring returned
spools has to be carefully considered.
Energy source status
Single solenoid
Air supply present, electrical
supply cut
Spool returns to the off position by air and
spring force
Electrical supply present, air
supply cut
Spool stops moving after air pressure cut
(Position cannot be defined)
Table 4.
Note) Applies to when the spool is at the end position and at an intermediate
position.
7.3 Holding of pressure
Since valves are subject to air leakage, they cannot be used for
applications such as holding pressure (including vacuum) in a system.
7.4 Cannot be used as an emergency shut-off valve
This product is not designed for safety applications such as an
emergency shut-off valve. If the valves are used in this type of system,
other reliable safety assurance measures should be adopted.
7.5 Safety relays or PLC
If a safe output from a safety relay or PLC is used to operate this valve,
please contact SMC. Caution
7.6 Leakage voltage
Ensure that any leakage voltagecaused by the leakage current when the
switching element is OFF causes ≤ 3% of the rated voltage across the
valve.
7.7 Low temperature operation
Unless otherwise indicated in the specifications for each valve, operation
is possible to -10˚C, but appropriate measures should be taken to avoid
solidification or freezing of drainage and moisture, etc.
7.8 3 port specification (DXT1215T-5U-01-X1)
•The 3-port specification is a specification with the 2(B) port plugged
and closed. The 3(EB) port should be kept open for pilot exhaust.
•When one of the cylinder ports 4(A) or 2(B) is closed with a plug and
used as a 3-port valve, the surface temperature of the plug may rise
due to adiabatic compression. Therefore, we recommend the use of a
screw-in metal plug instead of a plastic plug with one-touch fittings.
Figure 7.
8 Product Disposal
This product shall not be disposed of as municipal waste. Check your
local regulations and guidelines to dispose this product correctly, in order
to reduce the impact on human health and the environment.
9 Contacts
Refer to www.smcworld.com or www.smc.eu for your local
distributor/importer.
URL : https:// www.smcworld.com (Global) https:// www.smc.eu (Europe)
SMC Corporation, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, Japan
Specifications are subject to change without prior notice from the manufacturer.
© 2022 SMC Corporation All Rights Reserved.
Template DKP50047-F-085M