Festo MPAC-VI User Manual
Valve terminal
MPAC-VI
Pneumatics
description
8023740
2017-12a
[8075694]
MPAC-VI
Translation of the original instructions
MPAC-VI-EN
IO-Link® is a registered trademark of its respective trademark holder in certain countries.
Identification of hazards and instructions on how to prevent them:
Warning
Hazards that can cause death or serious injuries
Caution
Hazards that can cause minor injuries
Other symbols:
Note
Material damage or loss of function
Recommendations, tips, references to other documentation
Essential or useful accessories
Information on environmentally sound usage
Text designations:
Activities that may be carried out in any order
1. Activities that should be carried out in the order stated
– General lists
2 Festo – MPAC-VI-EN – 2017-12a –
MPAC-VI
Table of contents
1 Safety and requirements for product use 7......................................
1.1 Safety 7..................................................................
1.1.1 General safety instructions 7.........................................
1.1.2 Intended use 7.....................................................
1.2 Requirements for product use 8...............................................
1.2.1 Technical prerequisites 8............................................
1.2.2 Qualification of specialized personnel 8.................................
1.2.3 Range of application and certifications 8................................
2 Product overview 9.........................................................
2.1 Purpose 9.................................................................
2.1.1 Equipment levels 9.................................................
2.1.2 Size of the valves 9.................................................
2.2 Component overview 10......................................................
2.3 Electrical connection 11.......................................................
2.3.1 Multi-pin plug connection 11..........................................
2.3.2 I-Port interface/IO-Link 11............................................
2.4 Description of components 12..................................................
2.4.1 Manifold sub-bases and electronics modules 12...........................
2.4.2 Valves 13..........................................................
2.4.3 Check valves 14.....................................................
2.4.4 Cover of the manifold sub-base 14......................................
2.4.5 Pneumatic supply 16.................................................
2.4.6 Pilot air supply 16...................................................
2.4.7 Exhaust air 17......................................................
2.4.8 Pressure compensation 17............................................
2.4.9 Pressure zone separation 18...........................................
2.4.10 Electrical connection 19..............................................
2.4.11 Display and operating components 21...................................
2.4.12 Switching status indication of the valves 22...............................
2.4.13 Manual override (MO) 22.............................................
3 Mounting and installation 23..................................................
3.1 Mounting/dismounting 23.....................................................
3.2 Compressed air preparation 23.................................................
3.2.1 Operation with unlubricated compressed air 23...........................
3.2.2 Operation with lubricated compressed air 23.............................
3.3 General installation instructions 25..............................................
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MPAC-VI
3.4 Connecting the valve terminal 26................................................
3.4.1 Pilot control (pilot air supply) 26........................................
3.4.2 Pressure zone separation 27...........................................
3.4.3 Vacuum/low-pressure operation 29.....................................
3.4.4 Connecting the pneumatic lines 30......................................
3.5 Installation of the tubing lines 32...............................................
3.5.1 Connecting 32......................................................
3.5.2 Removing 32.......................................................
3.5.3 Common pneumatic lines 33...........................................
3.6 Connecting the electric cables 34...............................................
3.7 Address assignment 34.......................................................
3.7.1 Addressing example 35...............................................
4 Commissioning 37...........................................................
4.1 Prior to commissioning 37.....................................................
4.1.1 Pressure build-up in the overall supply 37................................
4.2 Testing the valves and the valve/actuator combination 39............................
5 Diagnostics and fault clearance 41.............................................
5.1 Switching status indication of the solenoid coils 41.................................
5.2 Functional impairments 42....................................................
5.3 Operating statuses of the pneumatic system 43....................................
6 Cleaning and maintenance 44.................................................
6.1 General safety measures 44...................................................
6.2 Cleaning the valve terminal 45..................................................
6.3 Maintaining the valve terminal 46...............................................
6.3.1 Cleaning or replacing the silencer 46....................................
6.3.2 Replacing the valve or cover plate 46....................................
7 Conversion 49..............................................................
7.1 Tie rod system 49............................................................
7.2 Replacing or extending the manifold sub-base, supply plate
or replacing the right end plate 50..............................................
7.3 Replacing electronics modules 53...............................................
7.4 Conversion between internal and external pilot air supply 53.........................
7.5 Addition of pressure zones 54..................................................
7.6 Conversion of the outlet orientation for the electrical connection 56...................
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MPAC-VI
A Technical appendix 58........................................................
A.1 Technical data 58............................................................
A.1.1 General 58.........................................................
A.1.2 Operating and environmental conditions 60...............................
A.1.3 Pneumatics 61......................................................
A.1.4 Electrical data 64....................................................
A.2 Accessories 64..............................................................
B Circuit symbol 65............................................................
B.1 Overview of valves 65........................................................
C Glossary 70................................................................
Index 71........................................................................
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MPAC-VI
Further applicable documents
This document contains information about the mounting, installation, commissioning, maintenance and
conversion of the product.
The following documents contain further details:
Name, type Contents
Brief description MPAC-VI/VMPAC-EPL-MP Valve terminal with multi-pin plug connection
Brief description MPAC/VMPAC-EPL-IP Valve terminal with I-Port/IO-Link® interface
Assembly
Valve terminal MPA-C Mounting methods of the valve terminal
instructions
Certificate Valve terminal MPAC-VI Supplementary material information regarding
food safety
Tab. 1 Documents relating to the product
For all available product documentation è www.festo.com/pk
Service
Contact your regional Festo contact person if you have technical questions è www.festo.com.
6 Festo – MPAC-VI-EN – 2017-12a – English
1 Safety and requirements for product use
1 Safety and requirements for product use
1.1 Safety
1.1.1 General safety instructions
Note
Damage to the product due to incorrect handling.
Switch off the supply voltage before mounting and installation work. Only switch on
the supply voltage when mounting and installation work is completely finished.
Never unplug or plug in a product when it is energised!
Observe the handling specifications for electrostatically sensitive devices.
1.1.2 Intended use
The valve terminal is suitable for the food and packaging industry. It fulfils the requirements for
the splash zone in accordance with EN 1672-2:2009-07.
The valve terminal is intended for installation in machines or automated systems and may be used only
as follows:
– in a faultless technical condition,
– in its original state without unauthorised modifications; only the conversions or modifications de
scribed in the documentation supplied with the product are permitted,
– within the limits of the product defined by the technical data (è Appendix A.1),
– in an industrial environment.
If used together with additional commercially available components, such as actuators, the specified
limits for pressures, temperatures, electrical data, torques etc. must be observed.
Note
In the event of damage caused by unauthorised manipulation or other than intended
use, the guarantee is invalidated and the manufacturer is not liable for damages.
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1 Safety and requirements for product use
1.2 Requirements for product use
Make this documentation available to the design engineer, installer and personnel responsible for
commissioning the machine or system in which this product is used.
Make sure that the specifications of the documentation are always complied with. Also consider the
documentation for the other components and modules.
Take into consideration the legal regulations applicable for the destination, as well as:
– regulations and standards,
– regulations of the testing organizations and insurers,
– national specifications.
1.2.1 Technical prerequisites
General conditions for the correct and safe use of the product, which must be observed at all times:
Comply with the connection and environmental conditions of the product (è Appendix A.1) and all
connected components specified in the technical data.
Only compliance with the limit values or load limits permits operation of the product in accordance
with the relevant safety regulations.
Observe the instructions and warnings in this documentation.
1.2.2 Qualification of specialized personnel
The product may be placed in operation only by a qualified electrotechnician, who is familiar with
– the installation and operation of electrical control systems,
– the applicable regulations for operating safety-engineered systems,
– the applicable regulations for accident protection and occupational safety, and
– the documentation for the product.
1.2.3 Range of application and certifications
Standards and test values, which the product complies with and fulfils, can be found in the “Technical
data” section (è Appendix A.1). The product-relevant EU directives can be found in the declaration of
conformity.
Certificates and the declaration of conformity for this product è www.festo.com/sp.
The product fulfils the requirements of EU directives and is equipped with the CE marking.
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2 Product overview
2 Product overview
2.1 Purpose
The valve terminal is based on a modular structure and creates the following connections:
– Common ducts for supply and exhaust air
– Electrical signals from all solenoid coils
Working ports (2) and (4) are provided for each valve position on the individual sub-bases. Common
ducts and connections in the basic components supply the valves with compressed air (operating pres
sure and pilot pressure) and discharge the exhaust air (exhaust air of the valves and pilot exhaust air).
The valve terminal can be supplemented by additional components for compressed air supply or flow
restriction, e.g. to supply pressure zones.
Depending on the types of valve used, the following valve terminal operating modes can be used:
– Standard operation with one or more pressure zones
– Reversible operation with compressed air supply via ports (3), (5) and exhaust via port (1)
– Low-pressure operation at 0 ... 3 bar
– Vacuum operation at –0.9 ... 0 bar
2.1.1 Equipment levels
The valve terminal is available in the following equipment levels:
Electrical
connection
Valve positions
Manifold sub-base VMPAC-AP-…-1
(with grey electronics module 2))
Valve terminal with multi-pin plug connection
Sub-D with 25 pins 1,2,3,4 … 24 1,2,3,4 … 12
Sub-D with 44 pins 1,2,3,4 32 1,2,3,4 … 16
Valve terminal with I-Port interface/IO-Link
Sub-D with 9 pins 1,2,3,4 … 32 1,2,3,4 … 16
1) With exclusive use of the presented manifold sub-base
2) Electronics module for actuating one solenoid coil
3) Electronics module for actuating two solenoid coils
Tab. 2.1 Equipment levels
1)
Manifold sub-base VMPAC-AP-…-2
(with black electronics module 3))
2.1.2 Size of the valves
The valve terminal is available in the size MPA14, i.e. the valves have a size of 14 mm.
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2 Product overview
2.2 Component overview
The valve terminal consists of pneumatic and electric components. The most important components are
shown in Fig. 2.1.
2
3
1
4
4
5
1 Left end plate with
– multi-pin plug connection or
I-port interface/IO-Link
– supply ports (1), (3) and (5)
2 Manifold sub-base with auxiliary power
supply:
– supply ports (1), (3) and (5)
– working ports (2) and (4)
– valve with cover, optionally
with manual override
– electronics module
Fig. 2.1 Main components of the valve terminal
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3 Right end plate with:
– ports (1), (3), (5) (12/14), (82/84) and (L)
4 Manifold sub-base with:
– working ports (2) and (4)
– valve with cover, optionally
with manual override
– electronics module
5 Spacer bolt
2 Product overview
2.3 Electrical connection
The electrical connection of the valve terminal is made centrally via a Sub-D port in the left end plate.
The port can either be on the side of the valves or on the side of the pneumatic working ports. Depend
ent on the electronics module located in the manifold sub-base, one or two solenoid coils can be con
trolled per valve position (è Tab. 2.4).
2.3.1 Multi-pin plug connection
Each solenoid coil is assigned to a pin in the Sub-D connection. The maximum number of controllable
solenoid coils is dependent on the Sub-D connection:
Connection Number of controllable solenoid coils Left end plate
Sub-D with 25 pins 1 24 VMPACEPL-MPSD25-…
Sub-D with 44 pins 1 32 VMPACEPL-MPSD44-…
Tab. 2.2 – Multi-pin plug connection
The maximum length of the connecting cable between controller and valve terminal must not exceed
30 m.
2.3.2 I-Port interface/IO-Link
In addition to the power supply, communication is carried over the I-port interface/IO-Link. The maxim
um length of the connecting cable between I-Port/IO-Link master and valve terminal must not exceed
20 m.
Connection Number of controllable solenoid coils Left end plate
Sub-D with 9 pins 1 32 VMPACEPL-IP…
Tab. 2.3 I-port interface
The valve terminal can be connected as follows:
– to a device with an I-port interface
– to an IO-Link master
– to a connecting box CAPC-…
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2 Product overview
2.4 Description of components
2.4.1 Manifold sub-bases and electronics modules
The valves are supplied pneumatically via the manifold sub-bases and supplied electrically via the elec
tronics module that is installed in the manifold sub-base (è Fig. 2.2). The electronics module estab
lishes how many solenoid coils can be controlled on one valve position. The electronics module is avail
able only with the manifold sub-base.
2
1
3
1 Manifold sub-base
3 Pneumatic supply ducts
2 Electronics module
Fig. 2.2 Manifold sub-base with electronics module
The valve terminal can be equipped with the following manifold sub-bases:
Design of the manifold sub-bases Type code
Manifold sub-base with working ports (2), (4) and grey electronics module
for actuation by one solenoid coil
Manifold sub-base with working ports (2), (4) and black electronics mod
ule for actuation by two solenoid coils
Manifold sub-base with working ports (2), (4), supply ports (1), (3) and (5)
VMPAC-AP-14-1
VMPAC-AP-14-B-1
VMPAC-AP-14-2
VMPAC-AP-14-B-2
VMPAC-AP-14-SP-1
4)
4)
and grey electronics module for actuation by one solenoid coil
Manifold sub-base with working ports (2), (4); supply ports (1), (3) and (5)
VMPAC-AP-14-SP-2
and black electronics module for actuation by two solenoid coils
4) Manifold sub-base with drill holes for stud bolt mounting
Tab. 2. 4
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2 Product overview
2.4.2 Valves
The valves sit in the manifold sub-bases (è Fig. 2.4) of the valve terminal. The valves are marked by
identification codes (ident. code). The ident. code is located on the valve and is visible externally
through a transparent inspection window in the cover of the manifold sub-base. The valve terminal can
be equipped with the following valves (è Tab. 2.5):
Ident.
Val v e
code
B 5/3-way valve, mid-position pressurized
D Two monostable 2/2-way valves, normally closed, pneumatic spring return
DS Two monostable 2/2-way valves, normally closed, mechanical spring return
E 5/3-way valve, mid-position exhausted
G 5/3-way valve, mid-position closed
H Two monostable 3/2-way valves, control side 12 normally open, control side 14 normally
closed, pneumatic spring return
HS Two monostable 3/2-way valves, control side 12 normally open, control side 14 normally
closed, mechanical spring return
I Two 2/2-way valves, normal position closed, pneumatic spring return
With dual-pressure operation:
Operating pressure via port (1) or port (5)
With vacuum operation:
Operating pressure at port (1), vacuum at port (5) (e.g. for vacuum switching with ejector
pulse)
J 5/2-way bistable valve
K Two monostable 3/2-way valves, normally closed, pneumatic spring return
KS Two monostable 3/2-way valves, normally closed, mechanical spring return
M Monostable 5/2-way valve, pneumatic spring return
MS Monostable 5/2-way valve, mechanical spring return
N Two monostable 3/2-way valves, normally open, pneumatic spring return
NS Two monostable 3/2-way valves, normally open, mechanical spring return
W Monostable 3/2-way valve, normally open, external compressed air supply via port (2),
pneumatic spring return
X Monostable 3/2-way valve, normally closed, external compressed air supply via port (4),
pneumatic spring return
Tab. 2.5 Identification codes for the valves
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2 Product overview
Further information on the valves can be found in Appendix B.
2.4.3 Check valves
2
1
1 Manifold sub-base 2 Check valve
Fig. 2.3 Check valve – example of a check valve for the 14 mm size
A check valve can be integrated between sub-base and valve to prevent unintended switching of actuat
ors in response to high back pressure in the exhaust air ducts (3) and (5). If there is a high level of back
pressure, the check valves seal off exhaust air ducts (3) and (5).
– Mounting of the check valves è Assembly instructions VMPA14-RV
2.4.4 Cover of the manifold sub-base
To ensure the valve terminal fulfills the IP69k degree of protection, a cover must be fitted to protect
the valve or cover plate from external influences. The cover is mounted on the manifold sub-base with
two screws (è Fig. 2.4). The valve terminal can be equipped with the following covers:
Design of the cover Type code
Cover without manual override 1) e.g. for vacant position VMPAC-VC-14
Cover with manual override 1) 14 for valves with one solenoid coil VMPAC-VC-MO-14-1
Cover with manual override 1) 12 and 14 for valves with two solenoid coils VMPAC-VC-MO-14-2
1) MO = manual override
Tab. 2. 6
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2 Product overview
2
1
3
4
5
1 Manifold sub-base
2 Va lve
4 Cover of the manifold sub-base
5 Cover plate for non-assigned valve position
3 Mounting screws of the cover
Fig. 2.4 Manifold sub-base with valve and cover
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2 Product overview
2.4.5 Pneumatic supply
The valve terminal can be supplied pneumatically as follows:
– via the left and right end plate (standard)
– via the optional supply plate VMPAC-SP-O. The valve terminal can be equipped with up to 8 supply
plates. The electronics module (blue) of the supply plate is not assigned an address.
– via an optional manifold sub-base VMPAC-AP-14-SP-…
2.4.6 Pilot air supply
The pilot control of the solenoid valves is supplied with internal or external pilot air. This pilot air for the
total valve terminal (also beyond the pressure zones) is fed in via the right end plate. The type of pilot
air supply is determined with the selector sleeve (è Fig. 2.5) in the right end plate (è Tab. 2.7).
3
2
1
4
5
1 Blanking plug with internal pilot air supply
2 Port 12/14 for external pilot air
3 Right end plate
4 Selector sleeve for the external pilot air
supply
5 Fitting for connecting the external pilot air
supply
Fig. 2.5 Internal/external pilot air supply
Internal pilot air supply is only permitted if the operating pressure of the last pressure
zone (next to the right end plate) is between 3 and 8 bar.
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2 Product overview
You can identify the pilot control variant of your valve terminal by the following key features:
Pilot control
Pilot air supply
External Internal
Key feature – Selector sleeve in pilot con
trol duct (12/14) of the right
end plate
– No selector sleeve in pilot
control duct (12/14) of the
right end plate
– Pilot control port (12/14) is
sealed with blanking plugs
Pilot air supply Fed in via the pilot control
port (12/14)
Requirements – Separately controlled pilot
pressure (3 ... 8 bar)
– Operating pressure depend
ent on the valve –0.9 … 8 bar
Branched from the duct (1) in
the right end plate
– Operating pressure
3 ... 8 bar
– Operating pressure free of
pressure fluctuations
(è Appendix A, Tab. A.5)
Tab. 2.7 Pilot control
Conversion between internal and external pilot air supply is described in Chapter 7.4.
2.4.7 Exhaust air
The exhaust air (3) and (5) of the working air is removed as follows:
– via the left and right end plate
– optionally via manifold sub-base VMPAC-AP-14-SP-…
– optionally via supply plate VMPAC-SP-O
The pilot exhaust air is vented via port 82/84 in the right end plate.
2.4.8 Pressure compensation
Note
To prevent pressure from building up under the valve covers, any pressure created is
removed through the port (L) of the right end plate.
Do not seal the port (L) on the right end plate under any circumstances.
Remove the pressure with ducts.
Do not use a check valve in the line.
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2 Product overview
2.4.9 Pressure zone separation
The valves can be supplied with different pressures by creating pressure zones. Separation of the pres
sure zones is achieved through special plugs in the ducts (1), (3) or (5) (è Fig. 2.6). In each case the
valve mounted to the right of the separator belongs to the next (following on to the right) pressure
zone, which is the valve mounted on the manifold sub-base with separator in the current pressure zone.
Installation of the separators is described in chapter 7.5.
1
1 Exhaust duct (3)
2 Supply duct (1)
Fig. 2.6 Pressure zone separators
Pressure zone separation of the pilot duct (12/14) is not provided, since, with the valve
terminal, the pilot air supply for the pilot control of the valves is supplied centrally via
the right end plate.
2
3
3 Exhaust duct (5)
4 Separators VMPAC-TE-1-3-5
4
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2 Product overview
2.4.10 Electrical connection
On the left end plate of the valve terminal, one of the following electrical connections can be found on
the valve side (front) or connection side (rear):
– Valve terminal with multi-pin plug: Sub-D connection with 25 or 44 pins
– Valve terminal with IO-Link: Sub-D interface with 9 pins
1
2
1 Sub-D connection on the valve side
(front side, on top)
2 Sub-D connection on the connection side
(reverse side, underneath)
Fig. 2.7 Electrical connection on the left end plate
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2 Product overview
The following pneumatic connections and, of necessary, the electrical connection are located on
the connection side of the valve terminal:
34
2
1
1 Exhaust port (5)
2 Exhaust port (3)
3 Supply port (1)
4 Working port (2)
5 Working port (4)
6 Pilot air supply port (12/14)
7 Pilot exhaust port (82/84)
Fig. 2.8 Pneumatic connections
aA
32
5
23
1
6
7
aJ
9
81
8 Pressure compensation connection (L)
9 Manifold sub-base with supply ports
(optional)
aJ Supply plate (optional)
aA Sub-D connection/interface
(on the connection side here)
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2 Product overview
2.4.11 Display and operating components
The following display and operating elements and the electrical connection, if applicable, are located
on the valve side of the valve terminal:
1
2
4
1 Sub-D connection/interface
(here on the valve side)
2 Inspection window of the switching status
indications (yellow LEDs)
Fig. 2.9 Display and operating components
3
3 Manual overrides (MOs), non-detenting
4 Inspection window of the ident. code for
the valve
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2 Product overview
2.4.12 Switching status indication of the valves
There is an LED and an optional manual override (MO) for each solenoid coil. The LED and MO for
the corresponding solenoid coil are arrayed as follows:
2
2
1
1
1 LED and manual override for the valve
solenoid coil 14
2 LED and manual override for the solenoid
coil 12
Fig. 2.10 Configuration of the LED and manual override for the corresponding solenoid coil
The switching statuses of the solenoid coils and their significance can be found in
chapter 5.1
2.4.13 Manual override (MO)
The manual override enables the valve to be switched in a not electrically activated, de-energised
status. Only the compressed air supply needs to be switched on. You should use the manual override
mainly when commissioning the pneumatic system in order to check the function and operation of the
valve or the valve-actuator combination. The valve is activated by pressing the manual override. After
the manual override is released, the valve automatically switches by spring force back into the neutral
position. Operation of the manual override is described in chapter 4.2.
A manually actuated valve (by manual override) cannot be actuated electrically. Con
versely, an electrically actuated valve cannot be activated using the mechanical manual
override. The valve only returns to the rest position when both actuations are reset.
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3 Mounting and installation
3 Mounting and installation
3.1 Mounting/dismounting
Note
Damage to the product from incorrect handling and mounting.
Never mount or remove the product when powered!
Only switch on the supply voltage when mounting and installation work are com
pletely finished.
Information for mounting the valve terminal can be found in the corresponding mounting
instructions è www.festo.com/sp, enter search term: “Valve terminal MPAC-VI” or “Valve
terminal MPAC-VI User Documentation”.
3.2 Compressed air preparation
3.2.1 Operation with unlubricated compressed air
Note
Too much residual oil content in the compressed air will reduce the service life of
the valve terminal.
When using bio-oils (oils that are based on synthetic ester or native ester, e.g. rape
seed oil methyl ester), the maximum residual oil content of 0.1 mg/m3 must not be
exceeded (è ISO 8573-1:2010 [–:–:2]).
When using mineral oils (e.g. HLP oils in accordance with DIN 51524 Part 1 to 3) or
corresponding oils based on polyalphaolefin (PAO), the maximum residual oil con
tent of 5 mg/m3 must not be exceeded (è ISO 8573-1:2010 [–:–:4]).
This avoids malfunctions of the valves.
Excessive residual oil content is not permissible, independent of the compressor oil, as otherwise
the basic lubrication will be washed out with time.
3.2.2 Operation with lubricated compressed air
Note
The lifetime lubrication required for unlubricated operation can be “flushed out” when
products are operated using lubricated compressed air.
If the system was commissioned with lubricated compressed air, a changeover to un
lubricated compressed air is not possible.
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