Festo MPA-C Series User manual

Pneumatics
description
Valve terminal with
MPA-C pneumatics
Type:
MPAC-VI
8023740
1407NH
[8023747]
Valve terminal
MPA-C

MPA-C
2 Festo – GDCV-MPAC-EN – 1407NH –
Translation of the original instructions
GDCV-MPAC-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 or serious material damage.
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.

MPA-C
Festo – GDCV-MPAC-EN – 1407NH – English 3
Table of Contents – MPA-C
1 Safety and requirements for product use 8......................................
1.1 Safety 8..................................................................
1.1.1 General safety information 8..........................................
1.1.2 Intended use 8.....................................................
1.2 Requirements for product use 9...............................................
1.2.1 Technical prerequisites 9............................................
1.2.2 Qualification of specialized personnel 9.................................
1.2.3 Range of application and certifications 9................................
2Overview 10................................................................
2.1 Valve terminal MPA-C 10......................................................
2.1.1 Purpose 10........................................................
2.1.2 Performance characteristics 10........................................
2.1.3 Equipment levels 11.................................................
2.1.4 Size of the valves 11.................................................
2.2 Valve terminal design 12......................................................
2.3 Electrical connection 13.......................................................
2.3.1 Multi-pin plug connection 13..........................................
2.3.2 I-Port interface/IO-Link 13............................................
2.4 Description of components 14..................................................
2.4.1 Manifold sub-bases and electronics modules 14...........................
2.4.2 Valves. 15.........................................................
2.4.3 Cover of the manifold sub-base 16......................................
2.4.4 Pneumatic supply 18.................................................
2.4.5 Pilot air supply 18...................................................
2.4.6 Exhaust air 19......................................................
2.4.7 Pressure compensation 19............................................
2.4.8 Pressure zone separation 20...........................................
2.4.9 Electrical connection 21..............................................
2.4.10 Display and control elements 23........................................
2.4.11 Switching status indication of the valves 24...............................
2.4.12 Manual override (MO) 24.............................................

MPA-C
4 Festo – GDCV-MPAC-EN – 1407NH – English
3 Mounting and installation 25..................................................
3.1 Mounting / dismantling 25.....................................................
3.2 Compressed air preparation 26.................................................
3.2.1 Operation with unlubricated compressed air 26...........................
3.2.2 Operation with lubricated compressed air 26.............................
3.3 General instructions on installation 28...........................................
3.4 Connecting the valve terminal 29................................................
3.4.1 Pilot control (pilot air supply) 29........................................
3.4.2 MPA-C valve terminal with pressure zone separation 30.....................
3.4.3 Vacuum / low-pressure operation: 32...................................
3.4.4 Connecting the pneumatic lines 33......................................
3.5 Installation of the tubing lines 35...............................................
3.5.1 Connecting 35......................................................
3.5.2 Removing 35.......................................................
3.5.3 Common pneumatic lines 36...........................................
3.6 Connecting the electric cables 37...............................................
3.7 Address assignment 37.......................................................
3.7.1 Addressing example 38...............................................
4 Commissioning 40...........................................................
4.1 Prior to commissioning 40.....................................................
4.1.1 Pressure build-up in the overall supply 40................................
4.2 Testing the valves and the valve/actuator combination 42............................
5 Operation and diagnostics 44..................................................
5.1 Cleaning the valve terminal MPA-C 44............................................
5.2 Diagnostics and fault clearance 46..............................................
5.2.1 Switching status indicator of the solenoid coils 46.........................
5.2.2 Impairments of function 47............................................
5.2.3 Operating statuses of the pneumatic system 48...........................

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Festo – GDCV-MPAC-EN – 1407NH – English 5
6 General preventive action 49..................................................
6.1 Servicing the valve terminal MPA-C 49...........................................
6.1.1 Clean or replace silencer 49...........................................
6.1.2 Replace valves or cover plate 50........................................
6.2 Converting the valve terminal MPA-C 53..........................................
6.2.1 Tie rod system 53...................................................
6.2.2 Replacing or extending the manifold sub-base, supply plate
or replacing the right end plate 54......................................
6.2.3 Replacing electronics modules 57......................................
6.2.4 Conversion between internal and external pilot air supply 57.................
6.2.5 Adding pressure zones on the MPA-C valve terminal 58......................
6.2.6 modification of the outlet direction of the electrical connection 60............
A Technical appendix 62........................................................
A.1 Technical data 62............................................................
A.1.1 General 62.........................................................
A.1.2 Operating and environmental conditions 64...............................
A.1.3 Pneumatics 65......................................................
A.1.4 Electrical data 68....................................................
A.1.5 Product key 69......................................................
A.2 Accessories 69..............................................................
B Circuit symbol 70............................................................
B.1 Overview of valves 70........................................................
C Glossary 75................................................................

MPA-C
6 Festo – GDCV-MPAC-EN – 1407NH – English
Notes on this documentation
This documentation serves the purpose of ensuring safe work with the MPA-C valve terminal and con-
tains specific information on mounting, installation, commissioning, cleaning, servicing and modifying
the valve terminal. This description deals only with the pneumatic components.
Service
Please consult your regional Festo contact if you have any technical problems.

MPA-C
Festo – GDCV-MPAC-EN – 1407NH – English 7
Documentation
Information on the electrical/electronic components can be found in the following documentation:
Design of the valve terminal Documentation
Valve terminal with
– multi-pin plug connection
– I-Port interface/IO-Link
Relevant product enclosures
Tab. 1 Documentation for the valve terminal

1 Safety and requirements for product use
8 Festo – GDCV-MPAC-EN – 1407NH – English
1 Safety and requirements for product use
1.1 Safety
1.1.1 General safety information
Note
Damage to the product from incorrect handling.
• Switch off the supply voltage before mounting and installation work. Switch on
supply voltage only when mounting and installation work are completely finished.
• Never unplug or plug in a product when powered!
• Observe the handling specifications for electrostatically sensitive devices.
1.1.2 Intended use
The valve terminal MPA-C is intended for installation in machines or automated systems and may be
used only as follows:
– in excellent technical condition,
– in original status without unauthorised modifications; only the conversions or modifications
described in the documentation supplied with the product are permitted,
– within the limits of the product defined by the Technical data (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.

1 Safety and requirements for product use
Festo – GDCV-MPAC-EN – 1407NH – English 9
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 notes 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 (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 notes 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-engineering systems,
– the applicable regulations for accident protection and work 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 (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 www.festo.com/sp.
The product fulfils the requirements of EU directives and is equipped with the CE marking.

2Overview
10 Festo – GDCV-MPAC-EN – 1407NH – English
2Overview
2.1 Valve terminal MPA-C
Festo assists you in solving your automation tasks at machine level with the valve terminal MPA-C. The
modular structure of the valve terminal enables you to match it optimally in your machine or system.
The valve terminal provides the following connections:
– common ducts for supply and exhaust air
– electrical signals from all solenoid coils
The working ports (2) and (4) are provided for each valve position on the individual pneumatic manifold
sub-bases. The valves are supplied with compressed air (operating pressure and pilot pressure) via the
common channels and connections in the basic components. The exhaust air (from the valves and the
pilot exhaust air) is also exhausted via these common channels. Further components for compressed
air supply are also available, e.g. in order to supply pressure zones.
The valve terminal is equipped with current reduction. The nominal current of the solenoid coils is then
reduced after the high-current phase (switching operation). The current reduction offers the following
advantages:
– The valve terminal has a lower energy consumption,
– The power supply unit for the power supply to the valve terminal can be designed more economic-
ally, depending on the application
– The solenoid coils have lower power loss and produce less waste heat.
2.1.1 Purpose
The valve terminal from Festo is especially appropriate for the food and packaging industry. It fulfils the
requirements for the splash zone in accordance with DIN EN 1672-2:2009-07.
2.1.2 Performance characteristics
The valve terminal has the following performance characteristics:
– All external materials are safe for use with food
– Easy to clean (larger space between the valves, no sharp edges, no narrow radii, no dirty corners)
– Increased resistance to corrosion (KBK 4)
– Resistance to acid and alkaline cleaning agents
– Fulfills degree of protection IP69K
– Ease of maintenance
– Pre-mounted valves
– Central air supply
– Centrally ducted exhaust air
–Testedunit
– Modular tie rod system
– Subsequent conversion possible.

2Overview
Festo – GDCV-MPAC-EN – 1407NH – English 11
The following operating modes can be used – independently of the valve type:
– Standard operation with one or more pressure zones
– Reversible operation with compressed air supply via connections (3), (5) and exhaust via port (1)
– Low-pressure operation at 0 ... 3 bar
– Vacuum operation at -0.9 ... 0 bar
2.1.3 Equipment levels
The valve terminal is available in the following equipment levels:
Electrical
connection
Valve positions
1)
Manifold sub-base VMPAC-AP-…-1
(with grey electronics module
2)
)
Manifold sub-base VMPAC-AP-…-2
(with black electronics module
3)
)
Valve terminal with multi-pin plug connection
Sub-Dwith25pins 1,2,3,4 … 24 1,2,3,4 … 12
Sub-Dwith44pins 1,2,3,4 … 32 1,2,3,4 … 16
Valve terminal with I-Port interface/IO-Link
Sub-Dwith9pins 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
2.1.4 Size of the valves
The valve terminal is available in the size MPA14, i.e. the valves have a size of 14 mm.

2Overview
12 Festo – GDCV-MPAC-EN – 1407NH – English
2.2 Valve terminal design
The valve terminal consists of pneumatic and electric components. The most important components are
showninFig.2.1.
5
2
3
4
1
4
1Left end plate with
– multi-pin plug connection or
I-port interface/IO-Link
– supply ports (1), (3) and (5)
2Manifold 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
3Right end plate with:
– ports (1), (3), (5) (12/14), (82/84) and (L)
4Manifold sub-base with:
– working ports (2) and (4)
– valve with cover, optionally with manual
override
– electronics module
5Spacer bolt
Fig. 2.1 Main components of the valve terminal

2Overview
Festo – GDCV-MPAC-EN – 1407NH – English 13
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 ( 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-Dwith25pins 1…24 VMPAC-EPL-MP-SD25-…
Sub-Dwith44pins 1…32 VMPAC-EPL-MP-SD44-…
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 maximum
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-Dwith9pins 1…32 VMPAC-EPL-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 plate CAPC-…

2Overview
14 Festo – GDCV-MPAC-EN – 1407NH – English
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 (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
1Manifold sub-base
2Electronics module
3Pneumatic supply ducts
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
Manifold sub-base with working ports (2), (4) and grey electronics module
for actuation by one solenoid coil
VMPAC-AP-14-1
VMPAC-AP-14-B-1
4)
Manifold sub-base with working ports (2), (4) and black electronics mod-
ule for actuation by two solenoid coils
VMPAC-AP-14-2
VMPAC-AP-14-B-2
4)
Manifold sub-base with working ports (2), (4), supply ports (1), (3) and (5)
and grey electronics module for actuation by one solenoid coil
VMPAC-AP-14-SP-1
Manifold sub-base with working ports (2), (4); supply ports (1), (3) and (5)
and black electronics module for actuation by two solenoid coils
VMPAC-AP-14-SP-2
4) Manifold sub-base with drill holes for stud bolt mounting
Tab. 2.4

2Overview
Festo – GDCV-MPAC-EN – 1407NH – English 15
2.4.2 Valves.
The valves sit in the manifold sub-bases (Fig. 2.3) of the valve terminal. The valves are marked by
identification codes (ident. code). The ident. code is on the valve and is visible from outside through a
transparent inspection window in the cover of the manifold sub-base. The valve terminal can be
equipped with the following valves ( Tab. 2.5):
Ident.
code
Valve
B 5/3-way valve, mid-position pressurized
DTwo monostable 2/2-way valves, normally closed, pneumatic spring return
DS Two monostable 2/2-way valves, normally closed, mechanical spring return
E5/3-way valve, mid-position exhausted
G5/3-way valve, mid-position closed
HTwo 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
ITwo 2/2-way valves, normal position closed, pneumatic spring return
With dual-pressure operation:
Operating pressure via connection (1) or connection (5)
With vacuum operation:
Operating pressure at connection (1), vacuum at connection (5) (e.g. for vacuum switching
with ejector pulse)
J5/2-way bistable valve
KTwo monostable 3/2-way valves, normally closed, pneumatic spring return
KS Two monostable 3/2-way valves, normally closed, mechanical spring return
MMonostable 5/2-way valve, pneumatic spring return
MS Monostable 5/2-way valve, mechanical spring return
NTwo monostable 3/2-way valves, normally closed, pneumatic spring return
NS Two monostable 3/2-way valves, normally open, mechanical spring return
WMonostable 3/2-way valve, normally open, external compressed air supply via connection
(2), pneumatic spring return
XMonostable 3/2-way valve, normally closed, external compressed air supply via connection
(4), pneumatic spring return
Tab. 2.5 Identification codes of the valves

2Overview
16 Festo – GDCV-MPAC-EN – 1407NH – English
Further information on the valves can be found in Appendix B.
2.4.3 Cover of the manifold sub-base
The cover protects the valve or cover plate from external influences. It is required so that the valve terminal
fulfills the protection class IP69k. The cover is mounted on the manifold sub-base with two screws
(Fig. 2.3). The valve terminal can be equipped with the following covers:
Design of the cover Type
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

2Overview
Festo – GDCV-MPAC-EN – 1407NH – English 17
2
1
3
4
5
1Manifold sub-base
2Valve
3Fastening screws for the cover
4Cover of the manifold sub-base
5Cover plate for non-assigned valve position
Fig. 2.3 Manifold sub-base with valve and cover

2Overview
18 Festo – GDCV-MPAC-EN – 1407NH – English
2.4.4 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-…
2.4.5 Pilot air supply
The pilot control of the solenoid valves is supplied with internal or external pilot air supply. 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 (Fig. 2.4) in the right end plate. (Tab. 2.7).
1
2
3
4
5
1Blanking plug with internal pilot air supply
2Port 12/14 for external pilot air supply
3Right end plate
4Selector sleeve for the external pilot air supply
5Fitting for connecting the external pilot air
supply
Fig. 2.4 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.

2Overview
Festo – GDCV-MPAC-EN – 1407NH – English 19
You can recognise which pilot control variant your valve terminal was configured for by the following
characteristics:
Pilot control Pilot air supply
External Internal
Characteristic – Selector sleeve in pilot con-
trol channel (12/14) of the
right end plate
– No selector sleeve in pilot
control channel (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)
branched from the channel (1)
in the right end plate
Requirements – separately controlled pilot
pressure (3 ... 8 bar)
– operating pressure depend-
ent on the valve –0.9 … 8 bar
(Appendix A, Tab. A.4)
– operating pressure 3 ... 8 bar
– operating pressure free of
pressure fluctuations
Tab. 2.7 Pilot control
Conversion between internal and external pilot air supply is described in chap. 6.2.4.
2.4.6 Exhaust air
The exhaust air (3) and (5) of the work air is removed as follows:
– viatheleftandrightendplate
– optionally via manifold sub-base VMPAC-AP-14-SP-…
– optionally via supply plate VMPAC-SP-O
The pilot exhaust air is vented via connection 82/84 in the right end plate.
2.4.7 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 non-return valve in the line.

2Overview
20 Festo – GDCV-MPAC-EN – 1407NH – English
2.4.8 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 channels (1), (3) or (5) (Fig. 2.5). 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 6.2.5.
2
1
3
4
1Exhaust duct (3)
2Supply duct (1)
3Exhaust duct (5)
4Separators VMPAC-TE-1-3-5
Fig. 2.5 Pressure zone separators
Pressure zone separation of the pilot channel (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.