SMC Networks VS7-6 Series User manual

VS7-6-TF2Z554EN
Page 1 of 2
Instruction Manual
ISO 5599-1 Solenoid Valve - Metal Seal
Series VS7-6/8 Series
The intended use of this product 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.
•If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired. Caution
•The product is provided for use in manufacturing industries only. Do
not use in residential premises.
2 Specifications
2.1 Valve specifications
Model
VS7-6
VS7-8
Fluid
Air / Inert gas
Operating pressure range [MPa]
0.1 to 1.0
Ambient and fluid temperature [°C]
5 to 60
Flow characteristics
Refer to catalogue
Response time
Duty cycle
Contact SMC
Minimum operating frequency
1 cycle / 30 days
Maximum operating
frequency [Hz]
2 position
20
15
3 position Note 1)
10
10
Manual override
Non-locking type, Locking type
Lubrication
Not required
Impact / vibration resistance [m/s2]Note 2)
150 / 50
Enclosure (based on IEC60529)
IP65
Mounting orientation Note 3)
Unrestricted
2 Specifications - continued
Applicable sub-plate
VS7-1
VS7-2
Weight [kg]
Note 4)
2 position single
0.460
0.655
2 position double
0.560
0.74
3 position closed center
0.635
0.89
3 position exhaust center
3 position pressure center
3 position double pilot check
0.990
2.12
Table 1.
Note 1) Maximum operating frequency for 3 position double pilot check valve is 8Hz.
Note 2) Impact resistance: No malfunction resulted during the impact test using a
drop impact tester. The test was performed one time each in the axial and
right angle directions of the main valve and armature for both energized
and de-energized conditions. (Values quoted are for a new valve)
Vibration resistance: No malfunction resulted during a one-sweep test
between 8.3 and 2000 Hz. The test was performed in the axial and right
angle directions of the main valve and armature for both energized and de-
energized conditions. (Values quoted are for a new valve).
Note 3) If there is vibration or impact, install the valve so that the spool is
perpendicular to the direction of vibration.
If there is no vibration or impact, install the spool valve so that it is
horizontal.
Note 4) Weight is without sub-plate. Sub-plate weight: 0.37 kg.
2.2 Solenoid specifications
Coil rated
voltage [V]
DC
12, 24
AC [50/60 Hz]
100, 200
Electrical entry
DIN terminal
Coil insulation class
Class B equivalent
Allowable voltage fluctuation
-15 to 10% of rated voltage
Current [A]
24 VDC
Inrush/holding
0.075
12 VDC
0.15
Current [A]
100 VAC
Inrush
50 Hz
0.049
60 Hz
0.043
Holding
50 Hz
0.031
60 Hz
0.020
200 VAC
Inrush
50 Hz
0.024
60 Hz
0.021
Holding
50 Hz
0.015
60 Hz
0.010
Surge voltage suppressor
Varistor
Indicator light
AC
Neon
DC
LED
Table 2.
2.3 Manifold specifications
Manifold block size
ISO size 1
ISO size 2
Valve series
VS7-6
VS7-8
Valve stations Note)
1 to 10 stations
Piping
A,B port
1/4”, 3/8”, C6, C8, C10
3/8”, 1/2"
P, R1, R2 port
1/4”, 3/8”, C12
1/2", 3/4"
Table 3.
Note) Stations including F.R. unit (equivalent to 2 stations).
2.4 Pneumatic symbol
Refer to catalogue for pneumatic symbol.
2.5 Indicator light
Figure 1.
2.6 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.
3.3 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.
•Tighten fittings to the specified tightening torque.
Thread (Rc)
Tightening torque [N·m]
1/4
8 to 12
3/8
15 to 20
1/2
20 to 25
3/4
28 to 30
Table 4.
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 5 μm 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.
•Locked manual overrides might prevent the valve responding to being
electrically de-energised or cause unexpected movement in the
equipment.
3.6.1 Non-locking push type
•Push on the manual override button (orange) using a small-bladed
screwdriver or suitable tool until the valve switches (ON position).
•Hold this position for the duration of the check (ON position).
•Release the button and the override will re-set to the OFF position.
Figure 2.
3.6.2 Push-locking slotted type
3.6.2.1 To lock:
•Using a small-bladed screwdriver in the slot, push the manual override
button down until it stops.
3 Installation - continued
•Turn the override button 90° in the direction of the arrow until it stops
(ON position).
•Remove the screwdriver. The valve will remain switched ON.
Figure 3.
Warning
In this position the manual override is in the locked ‘ON’ position.
3.6.2.2 To unlock:
•Place a small-bladed screwdriver in the slot, push down the manual
override button.
•Turn the override button 90° in the reverse direction of the arrow.
•Remove the screwdriver and the manual override will re-set to the OFF
position.
3.7 Mounting
Caution
•Ensure gaskets are in good condition, not deformed and are dust and
debris free.
•When mounting valves ensure gaskets are present, aligned and
securely in place and tighten screws to torque values as per table
below.
Series
Thread size
Recommended tightening torque [N∙m]
VS7-6
M5
2.3 to 3.7
VS7-8
M6
4 to 6
Table 5.
3.8 Electrical circuit
Caution
•Surge suppression should be specified by using the appropriate part
number. If a valve type without suppression is used, suppression must
be provided by the host controller as close as possible to the valve.
AC
DC
Single solenoid
With indicator light
With indicator light / surge voltage suppressor
Double solenoid, 3 position
With indicator light
With indicator light / surge voltage suppressor
Figure 4.
ORIGINAL INSTRUCTIONS
Indicator light
Indicator light
Neon
light
SOL.
LED
SOL.
LED
SOL.
SOL. A
SOL. B
LED
SOL. A
SOL. B
LED
SOL. A
Neon
light
SOL. B
Varistor
Varistor
SOL. A
LED
SOL. B
LED
Varistor
Varistor
Manual override
button
Manual override
button
Neon
light
SOL.
Neon
light
Neon
light

VS7-6-TF2Z554EN
Page 2 of 2
3 Installation - continued
3.9 Wiring
Figure 5.
Note 1) Either +COM or -COM is applicable. Incorrect connection of ‘COM’ terminal
(terminal 3) can cause damage on power source circuit.
Note 2) Applicable cable diameter. O.D. ∅8 to ∅10.
Note 3) Core wire effective cross-sectional area: 0.5 mm2to 1.5 mm2.
Note 4) Tightening torque: connector/terminal fixing screw: 0.5 N∙m to 0.6 N∙m.
Note 5) Applicable crimp terminal shown below:
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.
•Contact SMC for the varistor residual voltage.
•Valve response time is dependent on surge suppression method
selected.
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 isolate the power, consider a valve
with polarity (with polarity protection diode), or 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,
the temperature of the valve will increase due to the heat generated by
the coil assembly. This will likely adversely affect the performance of the
valve and any nearby peripheral equipment. Therefore, if the valve is to
be energized for periods of longer than 30 minutes at a time or if during
the hours of operationthe energized period per day is longer than the de-
energized period, we advise using a valve with specification of 0.4 W or
lower valve, such as the SY series, or a valve with a power-saving circuit.
3.13 Effect of back pressure when using a manifold
Warning
•Use caution whenvalves are usedon a manifold, because an actuator
may malfunction due to back-pressure.
•Special caution must be taken when using 3 position exhaust centre
valve or when driving a single acting cylinder. To prevent a
malfunction, implement counter measures such as using a single EXH
spacer assembly or an individual exhaust manifold.
4 How to Order
Refer to catalogue for ‘How to Order’.
5 Outline Dimensions
Refer to catalogue for outline dimensions.
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.
6 Maintenance - continued
•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 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.
6.2 Replacement parts
Refer to catalogue for details regarding replacement parts such us
blanking plate assembly, double pilot check spacer, individual SUP
spacer, individual EXHspacer, blanking plate, silencer, gasket andscrew
assembly, sub-plate and bracket assembly, and DIN connector.
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
Energy
source status
Spool position
Single solenoid
Double solenoid
3 position
Air supply
present,
electrical
supply cut
Spool at the end
position
Spool returns to
the OFF position
by air and spring
force
Spool holds
position
Spool returns
to the OFF
position by
spring force
During spool
movement
(Spool at
intermediate
position)
Spool stops
moving after
electricity cut
(Position cannot
be defined)
Electrical
supply
present, air
supply cut
Spool at the end
position
Spool returns to
the OFF position
by spring force
Spool holds
position
Spool returns
to the OFF
position by
spring force
During spool
movement
(Spool at
intermediate
position)
Spool stops
moving after air
pressure cut
(Position cannot
be defined)
Table 6.
7.3 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.
7.4 Holding of pressure (including vacuum)
Since valves are subject to air leakage, they cannot be used for
applications such as holding pressure (including vacuum) in a system.
7.5 Intermediate stopping
Refer to Handling Precautions for 3/4/5 port Solenoid Valves.
Caution
7.6 Leakage voltage
Ensure that any leakage voltagecaused by the leakage current when the
switching element is OFF causes ≤3% (for DC coils) or ≤20% (for AC
coils) 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 5°C, but appropriate measures should be taken to avoid
solidification or freezing of drainage and moisture, etc.
7.8 Momentary energization
If a double solenoid valve is operated with momentary energization, it
should be energized for at least 0.1 second. However, depending on the
secondary load conditions, it should be energized until the cylinder
reaches the stroke end position, as there is a possibility of malfunction
otherwise.
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
Ground
1 (A side)
2 (B side)
3 (COM)
4 mm or more
4 mm or more
7 mm or less
7 mm or less