4.1.1 Ambient temperature .............................................................................................................................8
4.1.2 Medium temperature.............................................................................................................................. 8
4.1.4 Air quality............................................................................................................................................... 8
4.4.1 Voltage tolerances ............................................................................................................................... 12
4.4.2 Required performance of power supply unit ........................................................................................ 12
4.4.3 Power supply and precautions............................................................................................................. 12
4.5 COMPLIANCE AND APPROVALS ..........................................................................................................13
4.5.1 CE marking.......................................................................................................................................... 13
4.5.2 ATEX (Directive 94/9/EC) for 24V DC only.......................................................................................... 13
4.5.3 ISO standard ....................................................................................................................................... 14
4.5.6 DIN standard ....................................................................................................................................... 14
5.1.3 Port identification ................................................................................................................................. 16
5.1.4 Assembly of VS18/VS26 valve islands ................................................................................................ 17
5.1.6 Internal/external pilot air supply ...........................................................................................................22
5.1.7 Multi pressure ...................................................................................................................................... 23
5.2.2 Spare parts .......................................................................................................................................... 33
6 SINGLE STATION SUB-BASE..................................................................................................................34
6.1 GENERAL INFORMATION ...................................................................................................................34
6.1.1 24V DC power supply .......................................................................................................................... 34
6.1.2 115V AC power supply ........................................................................................................................ 34
6.1.3 Max current load on valve connectors with 24V DC ............................................................................ 34
6.1.4 Max current load on valve connectors with 115V AC........................................................................... 34
6.2 VARIANT WITH M12 CONNECTOR......................................................................................................35
10.2.1 General conditions............................................................................................................................... 90
10.3.3 Specific conditions............................................................................................................................... 94
10.3.4 Declaration of conformity ..................................................................................................................... 94
11 TRANSPORT / STORAGE / PACKAGING...................................................................................................96
24V DC or 115V AC Multipole
Integrated Fieldbus
Field expandable with single add-on stations
Dual spool technology
VS18G/VS26G Glandless spool and sleeve
for long life
VS18S/VS26S Softseal spool
for high flow
Wide range of accessories
UL and ATEX
Universal PNP/NPN 24V DC Multipole
Please find ordering information of all components in the data sheets 5.4.159 (VS18) and
5.4.160 (VS26).
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3 SAFETY, WARNING
These products are intended for use in industrial compressed air or hydraulic systems only. Do
not use these products where pressures and temperatures can exceed those listed under
‘
Technical Data’.
Before using these products with fluids other than those specified, for non-industrial
applications, life-support systems, or other applications not within published specifications,
consult NORGREN. Through misuse, age, or malfunction, components used in fluid power
systems can fail in various modes. The system designer is warned to consider the failure modes
of all component parts used in fluid power systems and to provide adequate safeguards to
prevent personal injury or damage to equipment in the event of such failure.
System designers must provide a warning to end users in the system instructional
manual if protection against a failure mode cannot be adequately provided. System
designers and end users are cautioned to review specific warnings found in instruction sheets
packed and shipped with these products.
Specific warnings:
• Check if classification of the valve island and marking on the item of equipment are able for
case of operation.
• Check technical data, such as operating pressure, voltage level, current type and
temperature, on the product label or in the data sheets for compliance with the existing
operating conditions.
• After removing the packaging, make sure that no contamination enter into the system.
• Check before the installation of the system that no contamination exists in the piping and
valve island.
• Check during installation of the system that gaskets will not become damaged.
• Please consider the information of this operating manual as well as the use conditions and
permissible data, which are on the product labels.
• Adapt to the general rules of technology when selecting and using an item of equipment.
• Take measures to avoid unintentional or improper activation.
• Prior to the first electrical operation, ensure no danger would result from the medium
exhausting from any open ports.
• Consider in case of pressurised systems that lines, valves and other components should not
be removed.
•
ATTENTION: There is some risk of injury! The surface of pilot valves could become very
warm in continuous operation.
•
ATTENTION: Valves with NO function (normally open) are open without pilot pressure.
During commissioning, protection against exhausted medium has to be provided.
• Leak and strength tests on open and closed valves are admissible until max. 1.5 times the
max. operating pressure. It is not allowed to operate the valve during these tests.
• Never use the valve island as lever arm or a step for climbing.
• Protect the valve island from falling objects.
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• Any fitting position of the valve island is permissible but valves with indicating lights up is
preferred.
• To avoid damaging the product, please make sure that the maximum torque values are not
exceeded (see section
5.1.2).
• Avoid short-circuits and breaks by not deviating from the standard use of connector cables
and cords.
• Order spare parts with the part number indicated on the product labels. (See section
5.2.2
and/or data sheets 5.4.159 (VS18) resp. 5.4.160 (VS26)).
• Do not load the system by bending or torsion.
•
Important: Power must be removed from the system while assembling and disassembling
electrical connectors, plugs and cables, valves, sandwich plates and blanking plates.
• Install and use only complete configured and connected valve islands.
• VS18/VS26 Fieldbus valve islands contain electronic devices, which could be damaged
through electrostatic discharge. Therefore electrostatic precautions must be taken.
Specifically, the person assembling or configuring the valve island must be connected to an
earth ground.
• Please refer to section
4.4.3 for information on power supply and earth ground connection of
Multipole and Fieldbus valve islands.
• Use this booklet or the instruction sheets packed with the product for assembling and
installation.
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4 TECHNICAL DATA
For more information, please refer to data sheets 5.4.159 (VS18) and 5.4.160 (VS26).
4.1 SPECIFICATION
4.1.1 Ambient temperature
-15°C to +50°C
(Consult our technical service for use below +2°C.)
4.1.2 Medium temperature
-5°C to +50°C
4.1.3 Medium
The valves of these series are intended for use with compressed air only.
The valves must be operated within the pressure range specified in the data sheets 5.4.159
(VS18) and 5.4.160 (VS26).
4.1.4 Air quality
The valves are designed for filtered (40µm), lubricated or non-lubricated compressed air.
(Please find details on oils in section
be supplied for the life of the product.
5.2.1.) If the air supply is lubricated, then lubrication must
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4.2 MATERIALS
Valve body / sub-bases: Die-cast aluminium
Glandless spool&sleeve (VS**G): Aluminium, hard anodised, teflon coated
Softseal spool (VS**S): Aluminium with HNBR seals
Plastic parts: POM, PA, PPA
Mounting sheets / screws: steel, zinc coated
Springs: stainless steel
Seals: NBR
Sandwich plates: Aluminium bar material, PA
Electrical contacts: brass, tin/gold coated
PCB: Glasepoxy
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4.3 PNEUMATIC
4.3.1 Response times VS valves
The response measurements are taken according to ISO 12238 standard.
Glandless valves VS**G VS18 VS26
Response
time ON (ms)
5/2 Sol/Spring 18 54 24 58
5/2 Sol/Sol 18 18 20 20
5/2 Sol (priority side 14)/Sol 14
APB = All ports blocked
COE = Centre open exhaust
NC = Normally closed
NO = Normally open
4.3.3 Maximum cycling rate
In practice the cycling rate should be lower than 300 c.p.m. (<5 Hz). The valves should be
switched above 90% (working port) and below 10% (exhausting port) of the supply pressure.
4.3.4 Minimum impulse on bistable valves
The minimum impulse length on 5/2 way bistable valves should correspond at least twice to the
response time (see section
4.3.1).
4.3.5 Important information for 2x2/2 valves
All 2x2/2 functions (NC, NO or NO/NC) have port 1 not connected in neither end position to port
2 or 4. Port 1 is not necessary (except internal pilot air). Supply of compressed air or vacuum
must be feeded to port 3 or 5.
Pay attention to this when configuring the valve island (blanking off canals 3 and 5 in base) !!
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4.4 ELECTRICAL
4.4.1 Voltage tolerances
Voltage Voltage tolerances
24V DC +/-10%
115V AC -10%/+15%
4.4.2 Required performance of power supply unit
The required performance can be calculated from the maximum number of energized solenoids
at the same time. In case of a Fieldbus valve island the consumption of power of the electronic
has to be considered (see section
4.4.3 Power supply and precautions
All VS18/VS26 24V DC products are designed to be used with a protective extra low voltage
(PELV) power supply (UL Class 2 Supply only).
All VS18/VS26 115V AC products correspond to the protection class I. Connection of the
protective earth (PE) ground is required.
8).
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4.5 COMPLIANCE AND APPROVALS
The VS18/VS26 products are tested and compliant:
4.5.1 CE marking
Degrees of protection provided by enclosures (IP code):
EN 60529:91+A1:00 (IEC 60529:89 + A1:99)
Low-voltage switchgear and controlgear:
EN 60947-5-1: 97+A1:00+A2:00+A12:00 - Control circuit devices and switching elements
EN 60947-1: 99+A1:00+A2:01 - Electromechanical control circuit devices
EN 61000-6-2: 01 - Immunity for industrial environments
EN 61000-6-4: 01 - Emission standard for industrial environments
Vibrations- and shock test:
DIN EN 60 068-2-6 - Vibration resistance (Test Fc: Vibration (sinusoidal))
DIN EN 60 068-2-27 (30g) - Shock resistance (Test Ea and guidance: Shock)
4.5.2 ATEX (Directive 94/9/EC) for 24V DC only
EN 50021:99 - Electrical apparatus for potentially explosive atmospheres - Type of
protection "n"
EN 13463-1:02 - Non-electrical equipment for potentially explosive atmospheres. Part 1.
Basic methodology and requirements.
EN 50281-1-1:99 - Electrical apparatus for use in the presence of combustible dust - Part 1-1:
Electrical apparatus protected by enclosures - Construction and testing
EN 1127-1:97 - Explosive atmospheres – Explosion prevention and protection – Part 1 :
Basic concepts and methodology.
For more information please refer to section
10.
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4.5.3 ISO standard
ISO 15407-2 (size 26mm and 18mm)
4.5.4 Fieldbus standards
Norgren Profibus DP Fieldbus systems conform to
DIN 19245 part 3.
Norgren DeviceNet systems conform to
DeviceNet specification volume 1 release 2 and the Pneumatic Valve Device Profile.
Norgren CANopen Fieldbus systems conform to
CANopen communication profile CiA DS-301 V4.0.
Norgren Interbus-S Fieldbus systems conform to
DIN 19258.
Norgren AS-Interface Fieldbus systems conform to
AS-I V2.11 specification.
For detailed information on Fieldbus protocols please refer to section
8.
4.5.5 CNOMO standard
The M23 19-pin connector fulfils CNOMO standard E03.62.530.N.
For more information on this standard please refer to the CNOMO website
For more information on the M23 19-pin connector please refer to section
www.cnomo.com.
7.4.
4.5.6 DIN standard
Colour code of D-Sub connectors according DIN 47100
4.5.7 UL/CSA approval
Investigated to UL 429 - 5th edition & CSA 22.2 No.139 - 1982 for 24V DC electrically operated
valves.
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VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
5 INSTALLATION AND MAINTENANCE MECHANICAL
5.1 INSTALLATION
5.1.1 Tools
VS18:
• Hexagon wrench key 2mm
• Hexagon wrench key 2.5mm
• Socket screw key X10
• Philips screwdriver size 1
• Screwdriver size 1
VS26:
• Hexagon wrench key 3mm
• Socket screw key X10
• Philips screwdriver size 1
• Screwdriver size 1
5.1.2 Tightening torque
To avoid damaging the product, please make sure that the maximum torque values are not
exceeded. The maximum torques are specified in the particular installation instructions.
Valve mounting screws
The valve mounting screws are pressurised. To prevent leakage through the mounting screws,
screws with blue coated thread are used. The specified torques for the blue coated screws
reduce to standard values after first use of the screws. These screws should not be used more
than five times, as good sealing performance can then not be guaranteed.
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5.1.3 Port identification
On all end plates and modular sub-bases each port is marked as follows:
Function Port/Identification
Main/internal pilot air supply 1
Exhaust 3 + 5
Outlet 2 + 4
External pilot air supply (if used) 12/14
Collected exhaust of pilot valves 82/84
Note:
Never plug port 82/84. Plugging this port will cause valves to malfunction.
port 12/14
port 5
port 1 port 82/84
port 3
port 2
port 4
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5.1.4 Assembly of VS18/VS26 valve islands
Tools:
VS18: Hexagon wrench key 2.5mm
Philips screwdriver size 1
VS26: Hexagon wrench key 3mm
Philips screwdriver size 1
To assemble a complete valve island, make sure you have ordered all necessary components
and the required tools are available.
1. First bolt all modular sub-bases together. Ensure sub-bases are properly aligned and the
gasket is fitted between the sub-bases. Then tighten the mounting screws (two per modular
sub-base) with the specified torque. If you are using a power screwdriver, consider the
maximum speed allowed.
For multi pressure applications, please refer to section
When ordering an even number of stations, please ensure the valve island contains a
maximum of two single station modular sub-bases. E.g.: You order an 8-station Multipole
valve island with an 8-station main PCB. The valve island must have at least three double
station modular sub-bases and must have no more than two single station modular subbases.
When ordering an odd number of stations, the single station modular sub-base should be at
the right end of the valve island. In addition, you can use two additional single station
modular sub-bases, for a total of three.
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2. Mount the left and right end plate to the modular sub-base. Ensure end plates are properly
aligned and the end plate gasket is fitted. Then tighten the mounting screws (two per end
plate) with the specified torque. If you are using a power screwdriver, consider the maximum
speed allowed.
1. Ensure gasket is fitted on the bottom of the blanking plate or ISEM. Place blanking plate
or ISEM onto the modular sub-base aligned to the interface.
2. Tighten valve mounting screws (two per blanking plate/ISEM) with the specified torque.
If you are using a power screwdriver consider the maximum speed allowed.
5. Having assembled the complete valve island, it is possible to mount it on a DIN-rail. For
instructions please refer to section
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5.1.8.
VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
5.1.5 Valve identification labels
When purchasing assembled valve islands from Norgren, valve
identification labels are included. These labels are intended for the top
of the pilot valves and provide sufficient space for text appropriate to
your application.
Spare labels can also be ordered at Norgren as a set of 10 pieces.
Order number for VS18 as well as VS26 is VS2672905-KG00.
The labels are AVERY standard labels (no. L6008) which can be ordered as DIN A4 sheets
(21 x 29.7 cm) by your local representative of AVERY/Zweckform.
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5.1.6 Internal/external pilot air supply
The position of the gasket between valve body and pilot valve defines and indicates pilot air
supply. Conversion between internal and external pilot supply occurs by flipping the red gasket.
Internal pilot air supply (fig. 1): from port 1
External pilot air supply (fig. 2): from port 12/14
In any case pilot exhaust air is collected and exhausted via port 82/84.
Figure 1 Figure 2
Solenoid 12 Solenoid 12
Solenoid 14 Solenoid 14
Such conversion in the field should occur only when minimum operating pressure is not
available at port 1. In these applications, the minimum operating pressure (or higher) is required
at port 12/14 on the end plate.
Note:
After flipping the gasket, data on the valve label (symbol and part number) are no longer
accurate. Furthermore, when changing valves or accessories (valve function, sandwich plate,
etc.) on a valve island, the part number on the label will no longer correspond to the
configuration. If you order the valve island based on the Norgren part number, the original
configuration will be delivered.
By assembling blanking discs in ports 1, 3 and/or 5 as well as 12/14 you have the possibility to
porting different pressures.
1. Install blanking discs depending on required pressure isolation requirements during the
assembly of the modular sub-bases.
2. Generate pressure supply by connecting left and right end plate. Additionally, you have the
possibility to mount an intermediate supply/exhaust module on a valve station.
1. Insert screws on the left and right end plates and position below the mounting nuts. (Screws
and mounting nuts are included in the DIN-rail mounting kit.) Tighten screws two revolutions
in the mounting nuts.
2. Place the valve island on the DIN-rail. Orientate straight flange of the mounting nuts towards
the DIN-rail.
3. Push the valve island on the DIN-rail and tighten screws with the specified torque. Check
the fit of the valve island.
VS2672926-KG00E_05/07 Page 24/97
Screw Type
(thread)
21 M4x36 VS18/
Valve
seize
VS26
Tightening
torque in Nm
1.0 – 1.1 8.85 – 9.73 1100
Tightening
torque in Ibs
Max. screw driver
speed in r.p.m.
VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
5.1.9 Installation instruction in case of raised vibrations
In case of vibrations of about 5g (at 60 Hz to 150 Hz) it is strongly recommended to mount
VS26 valve islands with more than 10 valve stations that main vibration load is in x-axis or
1. Ensure gasket is fitted on the bottom of the sandwich plate. Mount sandwich plate onto the
sub-base aligned to the interface. Use plug-in connection as positioning point. Tighten
mounting screws (two per sandwich plate) with the specified torque. If you are using a
power screwdriver consider the maximum speed allowed.
2. Ensure valve body gasket is fitted on the bottom of the valve. Place valve onto the sandwich
plate aligned to the interface. Use plug-in connection as positioning point.
3. VS26 only: Orientate straight flange of the U-washers towards the outer edge of the valve.
4. Tighten valve mounting screws (two per valve) with the specified torque. If you are using a
power screwdriver consider the maximum speed allowed.
see figure on the following page
Note:
If threads of the sandwich plate are damaged by Allen wrench, this might affect the sealing
performance.
When changing valves or accessories (valve function, sandwich plate, etc.) on a valve island,
the part number on the label will no longer correspond to the configuration. If you order the
valve island based on the Norgren part number, the original configuration will be delivered.
1. Loosen existing valve mounting screws (two per valve) by turning counter-clockwise and
remove valve vertical to the top.
2. Ensure valve body gasket is fitted on the bottom of the new valve. Place new valve onto the
modular sub-base aligned to the interface. Use plug-in connection as positioning point.
3. VS26 only: Orientate straight flange of the U-washers towards the outer edge of the valve.
4. Tighten valve mounting screws (two per valve) with the specified torque. If you are using a
power screwdriver consider the maximum speed allowed.
To avoid failures and/or use of valves with not allowed specification, you have to make sure that
the voltage of the new valve complies to the old one.
When changing valves or accessories (valve function, sandwich plate, etc.) on a valve island,
the part number on the label will no longer correspond to the configuration. If you order the
valve island based on the Norgren part number, the original configuration will be delivered.
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5.1.12 Replacement of pilot valves
Tool:
VS18/VS26: Socket screw key X10
1. Loosen existing pilot valve screws (two per
pilot valve) by turning counter-clockwise.
2. Important: Check and keep in mind the
position of the gasket (A) between valve
body and pilot valve (internal or external pilot
air supply) to make sure placing the new
gasket is set for the appropriate pilot type.
3. Remove pilot valve, V-ring (B) and gasket
(A).
4. Place new V-ring (B) and new gasket (A).
Consider now the position of the gasket (A)
(internal or external pilot air supply).
5. Place new pilot valve. Important: Turn new
thread moulded pilot valve screws (two per
pilot valve) by hand in the existing threads for
safe seizing to avoid damaging the existing
thread. Tighten the screws then with the
specified torque. Do not use a power
screwdriver!
Screw Type
(thread)
22 M3x24 VS18/
Valve
seize
VS26
Tightening
torque in Nm
0.9 – 1.0 7.96 – 8.85
Tightening
torque in Ibs
Note:
To avoid failures and/or use of valves with not allowed specification, you have to make sure that
the voltage of the new pilot valve complies to the old one.
When changing valves or accessories (valve function, sandwich plate, etc.) on a valve island,
the part number on the label will no longer correspond to the configuration. If you order the
valve island based on the Norgren part number, the original configuration will be delivered.
The pilot valve set includes:
• 1 pilot valve
• 1 gasket
• 1 V-ring
• 2 pilot valve screws
For ordering information on pilot valves refer to section
5.2.2.
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5.1.13 Manual override set-up kit
Tool:
VS18/VS26: Socket screw key X10
Use the manual override set-up kit to lock a non-locking manual override (excluding extended
manual override) as follows:
1. Remove existing pilot valve screws by turning counter-clockwise.
2. Put the adapter (A) on the pilot valve and mount it with the socket screws which are included
in the kit. Important: Turn thread moulded pilot valve screws (two per adapter) by hand in
the existing threads for safe seizing to avoid damaging the existing thread. Tighten the
screws then with the specified torque. Do not use a power screwdriver!
3. Put the key (B) on the adapter (A).
4. For operating the manual override kit, push and turn the key (B) clockwise.
Screw Type
(thread)
23 M3x29 VS18/
Valve
seize
VS26
Tightening
torque in Nm
0.9 – 1.0 7.96 – 8.85
Tightening
torque in Ibs
Note:
The key is provided for commissioning of the valve island only. If the key is left on the valve in
the operated position, the valve is switched on continually.
When changing valves or accessories (valve function, sandwich plate, etc.) on a valve island,
the part number on the label will no longer correspond to the configuration. If you order the
valve island based on the Norgren part number, the original configuration will be delivered.
The manual override set-up kit includes:
• 1 adapter
• 2 socket screws
• 1 key
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