SMC Networks VK300 series User manual

Doc. No.VK300**-OMH0002-C
PRODUCT NAME
3/5 Port Solenoid Valve
MODEL/ Series
VK300/3000 Series

Contents
Safety Instructions ---------------------------------------------------------------------------- 2,3
Design/Selection ------------------------------------------------------------------------------ 4,5
Mounting ---------------------------------------------------------------------------------------- 5
Piping -------------------------------------------------------------------------------------------- 5,6
Wiring -------------------------------------------------------------------------------------------- 6
Lubrication -------------------------------------------------------------------------------------- 6
Air Supply --------------------------------------------------------------------------------------- 6
Operating Environment ---------------------------------------------------------------------- 7
Maintenance ------------------------------------------------------------------------------------ 7
Specific Product Precautions --------------------------------------------------------------- 8～12
Trouble shooting ------------------------------------------------------------------------------- 13,14
-1-
VK300∗∗-OMH0002-C

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.
- 2 -
VK300∗∗-OMH0002-C

Safety Instructions
Caution
1. 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 f
ollowed.
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.
- 3 -
VK300∗∗-OMH0002-C

Warning
Design / Selection
1. Confirm the specifications
This product is designed only for use in compressed air
systems (including vacuum).
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 (including vacuum).
We do not guarantee against any damage if the product is
used outside of the specification range.
2. Actuator drive
When an actuator, such as a cylinder, is to be driven using a
valve, take appropriate measures (such as the installation of a
cover or the restricting of access to the product) to prevent
potential danger caused by actuator operation.
3. Effect of back pressure when using a manifold
Use caution when valves are used on a manifold because
actuators may malfunction due to back pressure.
Caution is necessary especially when a single acting cylinder
is operated. When there is a danger of such a malfunction,
take countermeasures such as using an individual EXH
manifold.
4. Holding pressure (including vacuum)
Since valves are subject to air leakage, they cannot be use dfor
applications such as holding pressure (including vacuum) in a
pressure vessel.
5. Not suitable for use as an emergency shutoff
valve, etc.
VK series are not designed for safety applications such as an
emergency shutoff valve. If the valves are used for the
mentioned applications, additional safety measures should be
adopted.
6. Release of residual pressure
For maintenance and inspection purposes install a system for
releasing residual pressure.
7. Operation in a vacuum condition
When a valve is used for switching a vacuum, take measures
to install a suction filter or similar to prevent external dust or
other foreign matter from entering inside the valve.
In addition, at the time of vacuum adsorption, be sure to supply
a constant supply of vacuum. Failure to do so may result in
foreign matter sticking to the adsorption pad or air leakage,
causing the workpiece to drop.
8. Regarding a vacuum switch valve and a
vacuum release valve
If a non-vacuum valve is installed in the middle of a piping
system that contains a vacuum, the vacuum condition will not
be maintained. Use a valve designed for use under vacuum
conditions.
9. Ventilation
Provide ventilation when using a valve in a confined area, such
as in a closed control panel. For example, install a ventilation
opening, etc. in order to prevent pressure from increasing
inside of the confined area and to release the heat generated
by the valve.
10. Extended periods of continuous energization
・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, when the total energizing
time per day is expected to be longer than the total
de-energizing time per day, use a continuous duty type valve.
Depending on the operating conditions, it may be possible to
use valves which are not mentioned above. Please contact
SMC. In addition, it is possible to shorten the energizing time
by using a N.O. (normal open) valve.
･When the valve is mounted onto a control panel, incorporate
measures to limit the heat radiation so that it is within the
operating temperature range. Do not touch the valves by bare
hand during or after energization.
For example, the temperature will be high when a 3 station
manifold or larger is put next to other valves and continuously
energised.
11. Do not disassemble the product or make any
modifications, including additional machining.
Doing so may cause human injury and/or an accident.
1. Leakage voltage
Take note that the leakage voltage will increase when a
resistor is used in parallel with a switching element or when a
C-R circuit (surge voltage suppressor) is used for protecting a
switching device because of the leakage voltage passing
through the C-R circuit. The suppressor residual leakage
voltage should be as follows.
DC coil 2% or less of rated voltage
AC coil 20% or less of rated voltage
2. Solenoid valve drive for AC with solid state
output (SSR, TRIAC output, etc.)
1) Current leakage
When using a snubber circuit (C-R element) for surge
protection of the output, a very small amount of electrical
current will continue to flow even during the OFF state. This
results in the valve not returning. In the a situation where the
tolerance is exceeded, as in the above case, take measures
to install a bleeder resistor.
2) Minimum allowable load amount (Min. load current)
When the consumption current of a valve is less than the
output’s minimum allowable load volume or the margin is small,
the output may not switch normally. Please contact SMC.
3. Surge voltage suppressor
1) The surge voltage suppressor built into the valve is intended to
protect the output contacts so that the surge generated inside
valve does not adversely affect the output contacts. Therefore,
if an overvoltage or overcurrent is received from an external
peripheral device, the surge voltage protection element inside
the valve is overloaded, causing the element to break. In the
worst case, the breakage causes the electric circuit to enter
short-circuit status. If energizing continues while in this state, a
large current flows. This may cause secondary damage to the
output circuit, external peripheral device, or valve, and may
also cause a fire. So, take appropriate protective measures,
such as the installation of an overcurrent protection circuit in
the power supply or a drive circuit to maintain a sufficient level
of safety.
Caution
VK300/3000 Series
Precautions for 3/5 Port Solenoid Valve 1
①
Be sure to read before handling.
- 4 -
VK300**-OMH0002-C

Warning
Design / Selection
3. Surge voltage suppressor
2) If a surge protection circuit contains nonstandard diodes, such
as Zener diodes or varistor, a residual voltage that is in
proportion to the protective circuit and the rated voltage will
remain. Therefore, take into consideration the surge voltage
protection of the controller..
In the case of diodes, the residual voltage is approximately 1 V.
4. Surge voltage intrusion
With non-polar type solenoid valves, at times of sudden
interruption of the loading power supply, such as emergency
shutdown, surge voltage intrusion may be generated from loading
equipment with a large capacity (power consumption), and a
solenoid valve in a de-energized state may switch over (see
Figure 1).
When installing a breaker circuit for the loading power supply,
consider using a solenoid valve with polarity (with polarity
protection diode), or install a surge absorption diode between the
loading equipment COM line and the output equipment COM line
(see Figure 2).
5. Operation in low temperature condition
Take appropriate measures to avoid the freezing of drainage,
moisture, etc. in low temperatures.
- VK300 series can be used down to -5°C.
- VK3000 series can be used down to -10°C.
6. Mounting orientation
Mounting orientation is unrestricted.
7. Initial lubrication of main valve
Initiallubricant has already been applied to the main valve.
Mounting
1. Operation Manual (this document)
Install the products and operate them only after reading the
operation manual carefully and understanding its contents.
Also, keep the manual where it can be referred to as necessary.
2. Ensure sufficient space for maintenance activities.
When installing the products, allow access for maintenance
and inspection.
3. Tighten threads with the proper tightening torque.
When installing the products, follow the listed torque
specifications.
4. If air leakage increases or equipment does not
operate properly, stop operation.
Check mounting conditions when air and power supplies are
connected. Initial function and leakage tests should be
performed after installation.
5. Painting and coating
Warnings or specifications printed on or affixed to the product
should not be erased, removed, or covered up.
Please consult with SMC before applying paint to resinous parts,
as this may have an adverse effect due to the solvent in the paint.
Piping
1. 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.
2. Winding of sealant 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 sealant tape is used,
leave 1 thread ridge exposed at
the end of the threads.
3. Connection of fittings
When screwing fittings into valves, tighten as follows.
(1) Follow the procedures below when installing an SMC fitting, etc.
・M5 types
After tightening the fitting by hand, use a wrench to tighten
the fitting an additional approximately 1/6 to 1/4 turn. As a
reference value, tightening torque is 1 to 1.5 N･m.
Note) If tightened excessively, the thread of the product may
break or the gasket may deform. If tightened insufficiently,
the thread of the product may become loose. In either
case, air leakage can occur.
(2) Follow the procedure of the manufacturer when fittings other
than SMC is used.
Tightening Torque for Piping
Connection thread
Proper tightening torque (N･m)
Rc1/8
3~ 5
Caution
Caution
VK300/3000 Series
Precautions for 3/5 Port Solenoid Valve 2
①
Be sure to read before handling.
- 5 -
VK300**-OMH0002-C

Warning
Warning
Warning
Piping
4. Piping to products
When piping to a product, avoid mistakes regarding the supply
port, etc.
This product is universal porting type. N.C type, N.O. type,
devider type and selector type can be used.
Symbol (Body ported)
Wiring
1. The solenoid valve is an electrical product.
For safety, install an appropriate fuse and
circuit breaker before use.
1. Polarity
When connecting power to a solenoid valve with a DC
specification and a light or surge voltage suppressor, check for
polarity.
If the polarity connection is wrong, the valve will not operate.
2. Applied voltage:
When electric power is connected to a solenoid valve, be
careful to apply the proper voltage. Improper voltage may cause
malfunction or coil damage.
3. Check the connections.
Check if the connections are correct after completing all wiring.
4. External force applied to the lead wire
If an excessive force is applied to the lead wire, this may cause
faulty wiring. Take appropriate measures so that a force of 30 N
or more is not applied to the lead wire.
Lubrication
Lubrication
1) The product has been lubricated for life by the manufacturer
and therefore, does not require lubrication while in service.
2) If a lubricant is used in the system, use class 1 turbine oil (no
additives), ISO VG32.
Once a lubricant is used in the system, lubrication must be
continued because the original lubricant applied during
manufacture will be washed away.
If turbine oil is used, refer to the Safety Data Sheet (SDS) of
the oil.
2. Lubrication amount
If too much oil is supplied, the oil will be accumulated in the
product, causing malfunction or response delay.
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 drainage.
Compressed air containing a large amount of drainage can
cause the 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. This may cause the malfunction
of pneumatic equipment.
If the drain bowl is difficult to check and remove, the
installation of a drain bowl with an auto drain option is
recommended.
For detailed information regarding the quality of the compressed
air described above, refer to SMC's Best Pneumatics catalog.
4. Use clean air.
Do not use compressed air that contains chemicals, synthetic
oils that include organic solvents, salt, corrosive gases, etc., as it
can cause damage or malfunction.
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 5 ㎛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 drainage can
cause malfunction of pneumatic equipment such as valves.
Therefore, take appropriate measures to ensure air quality,
such as by providing an aftercooler, air dryer, or water
separator.
4. If an excessive amount of carbon powder is
present, install a mist separator on the
upstream side of the valve.
If excessive carbon dust is generated by the compressor, it
may adhere to the inside of a valve and cause it to malfunction.
For detailed information regarding the quality of the compressed
air described above, refer to SMC's Best Pneumatics catalog.
Caution
VK300 VK3000
Caution
Caution
VK300/3000 Series
Precautions for 3/5 Port Solenoid Valve 3
①
Be sure to read before handling.
- 6 -
VK300**-OMH0002-C

Warning
Warning
Operating Environment
1. Do not use in an atmosphere containing corrosive
gases, chemicals, sea water, water, water steam, or
where there is direct contact with any of these.
2. Do not use in an environment where flammable
gas or explosive gas exists. Usage may cause a
fire or explosion. The products do not have an
explosion proof construction.
3. Do not use in a place subject to heavy vibration
and/or shock.
4. The valve should not be exposed to prolonged
sunlight. Use a protective cover.
Note that the valve is not for outdoor use.
5. Remove any sources of excessive heat.
6. If it is used in an environment where there is
possible contact with oil, weld spatter, et.,
exercise preventive measures.
7. When the solenoid valve is mounted in a
control panel or it’s energized for a long period
of time, make sure the ambient temperature is
within the specifications of the valve.
(1) Temperature of ambient environment
Use the valve within the range of the ambient temperature
specification of each valve. In addition, pay attention when
using the valve in environments where the temperature
changes drastically.
(2) Humidity of ambient environment
●When using the valve in environments with low humidity, take
measures to prevent static.
●If the humidity rises, take measures to prevent the adhesion of
water droplets on the valve.
Maintenance
1. Perform maintenance inspection according to
the procedures indicated in the operation
manual (this document).
If handled improperly, human injury and/or malfunction or
damage of machinery and equipment may occur.
2. Removal of equipment, and supply/exhaust of
compressed air
Before components are removed, first confirm that measures
are in place to prevent workpieces from dropping, run-away
equipment, etc. Then, cut off the supply air and electric power,
and exhaust all air pressure from the system using the residual
pressure release function.
When the equipment is operated after remounting or
replacement, first confirm that measures are in place to
prevent the lurching of actuators, etc. Then, confirm that the
equipment is operating normally.
3. Low-frequency operation
Valves should be operated at least once every 30 days to
prevent malfunction. (Use caution regarding the air supply.)
4. Manual override
When a manual override is operated, connected equipment
will be actuated.
Operate only after safety is confirmed.
5. If the volume of air leakage increases or the
valve does not operate normally, do not use
the valve.
Perform periodic maintenance on the valve to
confirm the operating condition and check for
any air leakage.
1. Drain flushing
Remove drainage from the air filters regularly.
2. Lubrication
Once lubrication has been started, it must be continued.
Use class 1 turbine oil (with no additives), VG32. If other
lubricant oil is used, it may cause a malfunction.
Caution
Caution
VK300/3000 Series
Precautions for 3/5 Port Solenoid Valve 4
①
Be sure to read before handling.
- 7 -
VK300**-OMH0002-C

How to Wire DIN Terminal
●Connection
1. Loosen the set screw and pull out the DIN connector from the
terminal block of the solenoid.
2. Remove screw and insert screwdriver into the slit area near the
bottom of terminal block to separate block and housing.
3. Loosen the terminal screws (slotted screws) on the terminal
block, insert the core of the lead wire into the terminal, and
attach securely with the terminal screws.
4. Tighten the ground nut to secure the cable.
Use caution in wiring because it will not meet the IP65
(enclosure) standard if you use the other cable than prescribed
heavy-duty cable of size (ø3.5 to ø7).
Tighten the ground nut and set screw within the specified
range of torque.
●Change of electrical entry (Orientation)
After separating terminal block and housing, the cable entry
direction can be changed by attaching the housing in the
desired direction (4 directions in 90 increments).
∗In the case of w/ indicator light, avoid damaging the light with
lead wire. •
●Precautions
Plug a connector in or out vertically, never at an angle.
●Applicable cable
O.D.: ø3.5 to ø7
(Reference)
0.5 mm2 2 core and 3 core wires equivalent to JIS C 3306
●Connector part no.: VK300-82-1
●Part no. of connector with indicator light
●Circuit with indicator light
Light/Surge Voltage Suppressor
* The light comes with the DIN connector.
Precautions on connection of 24 V or more DC
Grommet type should be connected as following; Red lead wire
for (+) side, Black lead wire for (–) side respectively.
With the DIN terminal, connect the positive (+) side to the
connector’s no. 1 terminal, and the negative (–) side to the no.
2 terminal. [Refer to the marks on the terminal board.]
∗For 12 VDC or below, there is no positive (+) or negative (–)
directionality.
Rated
voltage
Voltage
symbol
Part no.
100 VAC
100V
VK300-82-2-01
110 VAC
110V
VK300-82-2-03
200 VAC
200V
VK300-82-2-02
220 VAC
220V
VK300-82-2-04
240 VAC
240V
VK300-82-2-07
6 VDC
6V
VK300-82-4-51
12 VDC
12V
VK300-82-4-06
24 VDC
24VD
VK300-82-3-05
48 VDC
48VD
VK300-82-3-53
VK300/3000 Series
Specific Product Precautions 1
Be sure to read this before handling the products.
Caution
Caution
- 8 -
VK300∗∗-OMH0002-C

Warning
Light/Surge Voltage Suppressor
Vacuum Spec. Type: VK33□V(VK33□W)
In contrast to the standard product, this vacuum specification valve
has less air leakage at low pressures, a feature that should be
taken into consideration when using this valve for vacuum
applications.
Since this valve has slight air leakage, it can not be used for
holding vacuum (including positive pressure holding) in the
pressure container.
Continuous Duty Type: VK33□E
Recommended for continuous duty with long time loading.
1. This model is for continuous duty, not for high cycle rates. But even
in low cycle rates, if energizing the valve more than once a day,
please consult with SMC.
2. Energizing solenoid should be done at least once in 30 days.
3. As a rectifier is mounted to the product with continuous duty AC
specification, diodes are included. (The specifications of G / GS and
D / DS are the same.)
Valve Mounting Direction
When mounting a valve on the manifold base or sub-plate, etc.
the mounting orientation is already decided. If mounted in a
wrong direction, the equipment to be connected may result in
malfunction. Therefore check the mounting direction, and if it is
correct, mount the valve.
Caution
Caution
Caution
VK300/3000 Series
Specific Product Precautions 2
Be sure to read this before handling the products.
- 9 -
VK300∗∗-OMH0002-C

Manifold Specifications
VK300
1. Mounting direction is fixed, do not mount on opposite side.
2. The VK300 series can be mounted on the manifold base VV5K3 of VK 3000 series. Refer to page 11 for details.
Common SUP/ Common EXH
Common SUP/ Individual EXH
Body ported
Base mounted
Manifold gasket and screw assembly VK300-41-1A VK300-41-2A
Type 20(VV3K3-20): Body ported
(A port top ported)
Type 40(VV3K3-40): Base mounted
(A port bottom ported)
Type 42(VV3K3-42): Base mounted
(A port side ported)
Type S42 (VV3K3-S42)
(Solenoids on the same side of Aport)
Type 21 (VV3K3-21): Body ported
(A port top ported)
Combinations of Solenoid Valve, Manifold Gasket and Manifold Base
Combinations of Blanking Plate Assembly and Manifold Base
Caution
VK300/3000 Series
Specific Product Precautions 3
Be sure to read this before handling the products.
- 10 -
VK300∗∗-OMH0002-C

VK3000
1. Mounting direction is fixed, do not mount on opposite side.
Body ported
Base mounted
Manifold gasket
Screw assembly
VK3000-6-1A VK3000-6-2A
Combinations of Solenoid Valve, Manifold Gasket and Manifold Base
Mixed Mounting of VK300 and Manifold Base of VK3000 Series
Combination of Blanking Plate Assembly and Manifold Base
Blanking plate assembly: VK3000-7-1A
Caution
VK300/3000 Series
Specific Product Precautions 4
Be sure to read this before handling the products.
- 11 -
VK300∗∗-OMH0002-C

Common SUP/Common EXH
Common SUP/ Individual EXH
Type 20 (VV5K3-20): Body ported
(A, B port top ported)
Type 40 (VV5K3-40): Base mounted
(A, B port bottom ported)
Type 41 (VV5K3-41): Base mounted
(A, B port side ported)
Type 42 (VV5K3-42): Base mounted
(A, B port side ported)
Type 21 (VV5K3-21): Body ported
(A, B port top ported)
Type S41
(VV5K3-S41)
Type S42
(VV5K3-S42)
VK300/3000 Series
Specific Product Precautions 5
Be sure to read this before handling the products.
- 12 -
VK300∗∗-OMH0002-C

TROUBLESHOOTING
⑩
⑧
Leakage from the connecting port.
Leakage from vent
Leakage from the gasket (manifold)
⑨
Coil splashed by water, etc.
⑧
④
Wear of packings of the spool valve
①
②
③
⑥
⑤
Buzzing
Faulty operation
Valve is not operated
Faulty wiring
Poor contact at contactor wire or connection part
Blown fuse or disconnection lead wire
Burned coil
Higher voltage
Leakage at actuator (cylinder, etc.) side
Leakage
Foreign matter caught in the spool valve
Foreign matter caught in core of solenoid valve
Worn core
Low line voltage
Inferior tightening of installation screw
A big continuous buzzing sound
is emitted when the power is
turned on.
(AC coil)
(following page)
⑪
④
Should any trouble be found during operation, trace the source of the trouble in the following order and take corrective action.
Trouble phenomenon
Cause expected
Measures
⑦
Swollen spool valve
Intrusion of foreign matter
- 13 -VK300∗∗-OMH0002-C

Remedy
Replace part.
Re-wire correctly.
was carried out excluding above-mentioned.
Replace valve.
Replace part or re-wire positively.
Repair or replace actuators.
After stopping air and re-tighten the bolts.
⑥
Check voltage. Replace valve.
In addition, in the case of trouble, please send it back to the supplier for repair or replacement.
1. Voltage out of rated voltage has been used.
If no improvement is achieved in spite of the above countermeasure, inside of the valve may have some
abnormality. In this case, stop using the valve immediately.
If any of followings are carried out, inside of the valve may have some failure. In this case, stop using
the valve immediately.
2. Oil other than the specified one has been lubricated.
7. Prohibited way of using the valve which is written at "Precautions" section in this operation manual
3. Lubrication has been stopped intermediately, or lubrication was suspended temporary.
4. Water splashed directely.
5. Strong impact was given.
6. Alien substance such as drain and particle got into. Drain or garbage invaded a valve.
⑨
⑩
⑤
･When a large quantity of drain is given and cannot carry out drain omission surely, install either an
auto-drain or a dryer.The valve should be replaced.
･If wrong oil is used, completely air blow to remove oil, and replace valve. After valve is replaced,
use turbine oil class 1 (ISO VG32).
⑧
⑦
Protect the valve so that water does not splash the coil. Replace valve.
In case of intrusion of foreign matter, to remove foreign matter by air blow of piping and then replace
valve.
No.
Remedy
③
②
①
Regulate voltage so that the voltage at the time of the operation becomes specifications range.
⑪
④
- 14 -VK300∗∗-OMH0002-C

Revision history
□
AE ARenewal MZ
A□ BE ASafety Instructions Po
A□ CE ASafety Instructions WR
1stprinting : TZ
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Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
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VK300∗∗-OMH0002-C