compact performance - festo · see leaflet with product ... −ifb−asi or cpa ... cp compact...

Manual CPA pneumatic

Valve terminal withCPA pneumaticsType CPA�...−VI

Manual173 515en 0903e[743 309]

Compact performance

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US patent no. 6,077,094

Contents and general instructions

IFesto P.BE−CPA−EN en 0903e

Original de. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Edition en 0903e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Designation P.BE−CPA−EN. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Order no. 173 515. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

© (Festo AG�&�Co. KG, D�73726 Esslingen, Germany, 2009)Internet: http://www.festo.comE−Mail: [email protected]

The reproduction, distribution and utilization of this docu−ment as well as the comunication of its contents to otherswithout express authorization is prohibited. Offenders willbe held liable for the payment of damages. All rights re−served in the event of the grant of a patent, utility moduleor design.


II Festo P.BE−CPA−EN en 0903e

AS−Interface�® is a registered trademark of the AS−Interface Association


IIIFesto P.BE−CPA−EN en 0903e

Contents

Intended use VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Target group VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Notes on the use of this manual VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Important user instructions XIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. System summary 1−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Overview of variants 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description of components 1−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Fitting 2−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Mounting variants 2−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1 Wall mounting 2−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Hat−rail mounting 2−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Installation 3−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Compressed air preparation 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1.1 Operation with unlubricated compressed air 3−4 . . . . . . . . . . . . . . . . .

3.1.2 Operation with lubricated compressed air 3−5 . . . . . . . . . . . . . . . . . . . .

3.2 General instructions on installation 3−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Laying the tubing 3−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Connecting the CPA valve terminal 3−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 Pilot air supply 3−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.2 CPA valve terminal with pressure zone separation 3−13 . . . . . . . . . . . . .

3.4.3 Vacuum/low pressure operation 3−16 . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.4 Connecting the pneumatic lines 3−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.5 Connecting the electric cables 3−22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Address assignment of the valves 3−26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


IV Festo P.BE−CPA−EN en 0903e

4. Commissioning 4−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 General Information 4−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.1 Before commissioning 4−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.2 Pressure increase in the overall supply 4−4 . . . . . . . . . . . . . . . . . . . . . .

4.2 Manual override (MO) 4−6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Checking the valves and the valve−actuator combination 4−9 . . . . . . . . . . . . . . .

4.4 LED display of the valves 4−15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5 Troubleshooting 4−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.1 Impairment of function 4−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.2 Operating states of the pneumatic system 4−18 . . . . . . . . . . . . . . . . . . .

5. Maintenance and conversion 5−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 General preventive action 5−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Dismantling the CPA valve terminal 5−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Maintenance of the CPA valve terminal 5−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3.1 Cleaning the flat plate silencer 5−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 Replacing CPA valve terminal components 5−8 . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4.1 Replacing valve sub−bases, blanking plates or additional supply plates 5−8 . . . . . . . . . . . . . . . . . . .

5.4.2 Replacing the large surface−mounted silencer 5−10 . . . . . . . . . . . . . . . .

5.4.3 Replacing the end plate, sub−base or interlinking block 5−11 . . . . . . . . .

5.5 Conversion work on the CPA valve terminal 5−18 . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5.1 Conversion from non−detenting to detenting/non−detenting manual�over�ride 5−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5.2 Conversion to internal or external pilot air supply 5−19 . . . . . . . . . . . . .

5.5.3 Converting the CPA valve terminal to different pressure zones 5−21 . . .

5.5.4 Conversion of valve position for actuating one or two solenoid coils . . . 5−23

5.6 Adding/removing valve positions 5−25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A. Technical appendix A−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.1 Technical specifications A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.2 Festo accessories A−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


VFesto P.BE−CPA−EN en 0903e

B. Supplementary summary of components and fitting�instructions B−1 . . . . . . .

B.1 Overview of valve sub−bases B−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B.2 Disconnecting electronic components from the CPA valve terminal B−6 . . . . . . .

C. Index C−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


VI Festo P.BE−CPA−EN en 0903e


VIIFesto P.BE−CPA−EN en 0903e

Intended use

The CPA valve terminals described in this manual are in�tended for fitting into a machine or automated system. Pleaseobserve the safety regulations specified in this manual aswell as the instructions concerning the designated use of therelevant CPA valve terminal. CPA valve terminals may only beused as follows:

� as intended in industrial applications

� without any modifications by the user. Only the conversions or modifications described in thedocumentation accompanying the product are permitted.

� In perfect technical condition.

When used together with commercially available compo�nents, such as actuators, the specified limits for pressures,temperatures, electrical data, torques etc. must be observed.National and local safety regulations must also be observed.

Target group

This manual is directed exclusively at technicians trained incontrol and automation technology.

Service

Please consult your local Festo repair service if you have anytechnical problems.


VIII Festo P.BE−CPA−EN en 0903e

Notes on the use of this manual

This manual contains specific information on fitting, installing,commissioning, servicing and converting the CPA valve ter�minal. This manual describes only the pneumatic componentsand refers to the valve terminal variants listed in the tablesbelow.

CPA valve terminal with CPX terminal, type CPA...

Information on the electric/electroniccomponents:

see manual �CPX system, installation andcommissioning"

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Tab.�0/1: CPA valve terminal with CPX terminal

Connection variants of the CPA valve terminal

CPA valve terminal with IC connection

Information on the electric/electronic components:in�this manual

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IXFesto P.BE−CPA−EN en 0903e

Connection variants of the CPA valve terminal

CPA valve terminal with MP connectiontype CPA�...−IMP

Information on the electric/electronic components:see leaflet with product

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CPA valve terminal with CP connection types CPA�...−IFB−CP and CPA�...−IFB−DN

Information on the electric/electronic components:see manual �CP system, installation andcommissioning"

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CPA valve terminal with AS−Interface connection type CPA�...−IFB−ASI or CPA�...−IFB−ASI−Z


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CPA valve terminal with AS−Interface connection:� and 4 inputs type CPA�...−GE−ASI−4E4A−Z� and 8 inputs type CPA�...−GE−ASI−8E8A−Z


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Tab.�0/2: Connection variants of the CPA valve terminal


X Festo P.BE−CPA−EN en 0903e

Information on further CP modules or CPX modules can befound in the manual for the relevant module. The table belowgives an overview.

Manuals on the CPA valve terminal with CPX terminal

Manual �System manual" type P.BE−CPX−SYS−...

Contents Overview of structure, components and method of operation of CPX terminals;instructions on installation and commissioning as well as basic information onparametrizing.

Manual �CPX fieldbus node" type P.BE−CPX−FB...

�CPX I/O modules" type P.BE−CPX−EA−...

�Valve terminal withCPA�pneumatics" type P.BE−CPA�... or �Valve terminal withMidi/Maxi pneumatics" type P.BE−MIDI/MAXI−03−...

Contents Instructions for theassembly, installation,commissioning anddiagnosis of the relevantfieldbus nodes

Notes on connections andinstructions on fitting, in�stalling and commissioninginput and output modulesof type CPX−.... as well astype CPA−... and the Midi/Maxi pneumatic interface

Information on fitting,installing andcommissioning the relevantpneumatic modules

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Tab.�0/3: Manuals on the CPA valve terminal with CPX terminal


XIFesto P.BE−CPA−EN en 0903e

Manuals on the CP system Peripherals

Manual �CP system, installation and commissioning" type P.BE−CPSYS−...

Contents General basic information on the method of operation, fitting, installationand commissioning of CP systems.

Manual �CP fieldbus node,programming anddiagnosis"type P.BE−CP−FB...or P.BE−VIFB...−10...

�CPV valve terminal,pneumatics" or �CPA valve terminal,pneumatics"type: P.BE−CPV...or P.BE−CPA�...

�CP modules,Electronics"type P.BE−CPEA−...

Contents Special information oncommissioning,programming anddiagnosing related tothe node used

Information on fitting,installing and commis�sioning CPA or CPVvalve terminals

Information on fitting,installing andcommissioning CPI/O�modules.

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Tab.�0/4: Manuals on the CP system


XII Festo P.BE−CPA−EN en 0903e

The CPA valve terminal consists of the following pneumaticand electrical components: The most important pneumaticcomponents are the valve sub−bases, connection sub−basesand end plates (see diagram).

1 Valve sub−bases

2 Manifoldsub−bases

3 End plates

1

2 33

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Fig.�0/1: Main components of the CPA valve terminal

This manual contains the documentation for the valve sub−bases with Ident. codes B, E, G, H, J, K, M and N (see chapter �System overview, description of components").


XIIIFesto P.BE−CPA−EN en 0903e

Important user instructions

Danger categories

This manual contains instructions on the possible dangerswhich may occur if the product is not used correctly. Theseinstructions are marked (Warning, Caution, etc.), printed on ashaded background and marked additionally with a picto�gram. A distinction is made between the following dangerwarnings:

WarningThis means that failure to observe this instruction mayresult in serious personal injury or damage to property.

CautionThis means that failure to observe this instruction mayresult in personal injury or damage to property.

NoteThis means that failure to observe this instruction mayresult in damage to property.

The following pictogram marks passages in the text whichdescribe activities with electrostatically sensitive compo�nents.

Electrostatically sensitive components may be damaged ifthey are not handled correctly.


XIV Festo P.BE−CPA−EN en 0903e

Marking special information

The following pictograms mark passages in the textcontaining special information.

Pictograms

Information:Recommendations, tips and references to other sources ofinformation.

Accessories:Information on necessary or sensible accessories for theFesto product.

Environment:Information on environment−friendly use of Festo products.

Text markings

· The bullet indicates activities which may be carried out inany order.

1. Figures denote activities which must be carried out in thenumerical order specified.

� Hyphens indicate general activities.


XVFesto P.BE−CPA−EN en 0903e

The following product−specific terms and abbreviations areused in this manual:

Term Meaning

Additional pressuresupply plate

Plate for supplying pressure zones which are in the centre of the CPA valveterminal. In this plate the compressed air is diverted from work connection(2), so that the relevant valve sub−bases can be supplied with compressedair. The exhaust air can also be expelled through connection (4).

AS−Interface Actuator−sensor interface

Blanking plate Plate without valve function, for reserving valve positions

Cartridge Plug connection (with/without inner thread) for connecting the supplycables to the CPA valve terminal

Components Common term for pneumatic sub−bases, valve sub−bases, additionalpressure supply plates, blanking plates, end plates, CPX adapters, electricalconnection blocks (with IC, MP, CP or AS−Interface connection), electricalmanifold blocks, cover blocks, end plate covers, silencers

Connecting plate Pneumatic manifold sub−base with open or closed compressed air channelfor one or two single−solenoid valves or one double−solenoid valve withwork connections (2) and (4)

CP Compact Performance

CP cable Special cable for connecting the different CP modules

CP modules Collective term for the various modules that can be integrated in a CP system

CP system Complete system consisting of CP fieldbus node and CP modules

CPA10CPA14

Designation of the CPA valve terminal sizes:CPA valve terminal with micro valve sub−basesCPA valve terminal with mini valve sub−bases

CPA valve terminal CPA valve terminal (type 12) for CPX terminal, field bus systems, IC, MP, or AS−Interface connections

CPA valve terminalwith AS−Interfaceconnection

CPA valve terminal variant which enables the CPA valve terminal to beconnected to the AS−Interface bus

CPA valve terminalwith CP connection

CPA valve terminal variant with plug and socket which enables the CPA valveterminal to be connected to further CP modules


XVI Festo P.BE−CPA−EN en 0903e

Term Meaning

CPA valve terminalwith individualconnection(IC�connection)

CPA valve terminal variant on which every solenoid coil can be connectedindividually with a special cable

CPA valve terminalwith multi−pinconnection(MP�connection)

CPA valve terminal variant with sub−D plug via which all solenoid coils arecentrally connected

CPX modules Common term for the various modules which can be incorporated in aCPX�terminal

CPX terminal Modular, electric terminal type 50

Current bridge Conducts the power supply from the manifold block to the solenoid coils onCPA valve terminals with MP, CP or AS−Interface connection

Electrical connectionblock

Block with multi−pin, CP or AS−Interface connection

End plate Outer left and right−hand end plates of the CPA valve terminal for supplyingthe valves with compressed air and for conducting the exhaust air, as well asfor connecting silencers

I/O Input/output modules

Interlinking block Block for the electrical linking of the solenoid coils with theelectrical�connection block or the CPX pneumatic interface

MO Manual override facility

Pneumatic interface The pneumatic interface is the interface between the modular electricalperiphery of the CPX terminal and the CPA pneumatics

Pneumatic sub−base Pneumatic manifold sub−base for the valve sub−bases, with workconnections�2 and 4 and open or closed compressed air channel 1

Tubing connection Connecting the supply lines (tubing) to the CPA valve terminal

Valve sub−base Plate with one or two single−solenoid valves or one double−solenoid valve

Tab.�0/5: Product−specific terms and abbreviations

System summary

1−1Festo P.BE−CPA−EN en 0903e

Chapter 1

1. System summary

1−2 Festo P.BE−CPA−EN en 0903e

Contents

1. System summary 1−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Overview of variants 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description of components 1−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. System summary


Contents of this chapter This chapter provides an overview of the following for theCPA�valve terminal:

� The connection variants and components of the valveterminal

� The maximum number of valve positions

� Identification code of the pneumatic components

� Connection, display and operating elements

Further information Information on the electric multi−pin can be found in the briefdescription of the CPA valve terminal with multi−pinconnection.

1. System summary


1.1 Overview of variants

Festo assists you in solving your automation tasks at machinelevel with CPA valve terminals. The modular structure of theCPA valve terminal for the CP system enables you to use theCPA valve terminals optimally in your machine or system.

Due to its compact structure the CPA valve terminal can bemounted close to the actuators to be actuated. This meansthat short air supply lines can be used. System losses willtherefore be minimized and the times required forpressurizing and exhausting the compressed air tubing willbe reduced. This is made possible by the use of very compactvalves with sufficient flow, thereby helping to reduce costs.

CPA valve terminal with CPX terminal

This CPA valve terminal is available with 2 to max. 22 single−coil valve positions or up to max. 11 double−coil valvepositions. A maximum of 22 solenoid coils can be actuated.

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Fig.�1/1: CPA valve terminal with CPX terminal

1. System summary


Electrical connectionvariants of the CPA valve terminal

The CPA valve terminals are available with the followingtypes of electrical connections:

1 MP connection

2 IC connection

3 AS−Interfaceconnection

4 CP connection

5 AS−Interfaceconnection with inputs

1 2

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Fig.�1/2: Variants of the CPA valve terminal

1. System summary



This CPA valve terminal is available with 2 to max. 22 valvepositions. The electrical connection of the solenoid coils ismade via individual connector plugs. A maximum of44�solenoid coils can be actuated.

CPA valve terminal with MP connection

This CPA valve terminal is available with 2 to max. 22 single−coil valve positions or up to max. 11 double−coil valve posi�tions. A maximum of 22 solenoid coils can be actuated. Theelectrical connection of the solenoid coils is made centrallyvia the multi−pin plug.

CPA valve terminal with CP connection

This CPA valve terminal is available with 2 to max. 16 single−coil valve positions or up to max. 8 double−coil valve posi�tions. A maximum of 16 solenoid coils can be actuated. Theconnection to the higher−order fieldbus node is made viaspecial ready−to−use CP cables.

CPA valve terminal with AS−Interface connection

This CPA valve terminal is connected to the AS−Interface busvia special AS−Interface cables. It is available with thefollowing types of electrical connections:

� without additional supply connection, type CPA�...−IFB−ASI

� with additional power supply connection (load voltagecan be switched off separately), type CPA�...−IFB−ASI−Z

� with 4 inputs and additional supply connection (load voltage, can be disconnected separately), type CPA�...−GE−ASI−4E4A−Z

� with 8 inputs and additional supply connection (load voltage, can be disconnected separately), type CPA�...−GE−ASI−8E8A−Z

The first three variants listed above (CPA�...−IFB−ASI, CPA�...−IFB−ASI−Z and CPA�...−GE−ASI−4E4A−Z) are available with 2 to max.4�single−coil valve positions or up to max. 2�double−coil valvepositions. A maximum of 4 solenoid coils can be actuated.

The variant with 8 inputs (CPA�...−GE−ASI−8E8A−Z) is availablewith 2 to max. 8 single−coil valve positions or up to max.4�double−coil valve positions. A maximum of 8 solenoid coilscan be actuated.

1. System summary


1.2 Description of components

The CPA valve terminal consists of the following electricalcomponents:

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1 2 3 4 5

6

7

8

1 CPA valve terminals with AS−Interfaceand inputs: AS−Interface module

2 CPA valve terminal: MP, CP or AS−Interface sub−base

3 Adapter for elect. interlinking with CPXterminal or AS−Interface with I/Os

4 The electrical manifold block (manifold block EV1 occupies1�address, EV2 occupies 2 addresses)

5 Electrical bridge with manual overrideand LEDs

6 Cover block

7 CPA valve terminals with CPX terminal:CPX pneumatic interface

8 CPA valve terminals with CPX terminalor AS−Interface and inputs: Adapter for mounting of the CPXpneumatic interface or the AS−Interfacemodule

Fig.�1/3: Electrical components of the CPA valve terminal

1. System summary


The CPA valve terminal consists of the following pneumaticcomponents:

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ÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑ

ÑÑÑÑ

ÑÑÑÑÑÑ

1

4

5

6

2

3

2

1 End plate cover or largesurface−mounted silencer

2 Valve sub−bases with single−solenoidor double−solenoid valves

3 Right−hand end plate with supply andexhaust connections

4 Additional supply plate or blankingplate

5 Sub−base:� with work connections� with/without pressure zone

separation� in combination with supply plate

for the compressed air supply

6 Left−hand end plate with supply andexhaust connections

Fig.�1/4: Pneumatic components of the CPA valve terminal

1. System summary


The max. number of valve positions on the CPA valve terminalvariants is shown in the following table.

Max. number of valve positions

CPA valve terminal withCPXterminal

ICconnection

MPconnection

CPconnection

AS−Interfaceconnection 1)

If only the manifold block EV1 isused (for valve sub−base withone solenoid coil)

22 2) 22 16 4 (8)

If only the manifold block EV2 isused (for valve sub−base withtwo solenoid coils)

11 2) 11 8 2 (4)

Maximum number of solenoidcoils which can be actuated

22 44 22 16 4 (8)

1) Values in brackets for variants with 8 inputs type CPA�...−GE−ASI−8E8A−Z2) In the case of CPA valve terminals with IC connection, the maximum number of valve positions

is limited to 22 due to the tie rod.

Tab.�1/1: Maximum number of valve positions depending on the CPA valve terminalvariants

Sizes of the CPAvalve�terminal

All CPA valve terminal variants are available with microvalves (valve width 10 mm, CPA10) or with mini valves(valve�width 14 mm, CPA14). Mixed operation with valves ofboth sizes in not possible on a CPA valve terminal.

1. System summary


By means of the identification code, you can ascertain whichvalve sub−bass are fitted on your CPA valve terminal. Thiscode is printed on the front of the valve sub−base.

Ident. code Pneumatic components

B Valve sub−base, 5/3−way, mid position pressurized

D Additional supply plate, for compressed air supply of three and more pressure zones

E Valve sub−base, 5/3−way, mid position exhausted

G Valve sub−base, 5/3−way, mid position closed

H Valve sub−base, two 3/2−way, control side 12 normally open, control side 14 normally closed

J Valve sub−base, 5/2−way, double−solenoid

K Valve sub−base, two 3/2−way, single−solenoid, normally closed

M Valve sub−base, 5/2−way, single−solenoid

N Valve sub−base, two 3/2−way, single−solenoid, normally open

T Sub−base for pressure zone separation, compressed air channel (1) blocked

Y Valve sub−base, 5/2−way, single−solenoid on two−coil valve position

Tab.�1/2: Ident. code of the pneumatic components

Further information on the valve sub−bases can be found inappendix A.

1. System summary


You will find the following connecting, display and operatingelements on the CPA valve terminal:

ÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ


ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎ


ÎÎÎ

ÎÎÎÎÎÎ


ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

CPA valve terminal with IC connection CPA valve terminal with MP, CP orAS−Interface connection or with CPX terminal

1 1 2

345345

1 Manual override (per pilot solenoid coil, non−detenting or detenting)

2 Clip (only with detenting manual override)

3 Supply connections (1), (12/14) and exhaust connections (3/5) on theright−hand end plate

4 Work connections(2), (4) per valve sub−base

5 Supply connection (1) and exhaust connections (3/5), (82/84) on theleft−hand�end plate

Fig.�1/5: Pneumatic connecting and operating elements of the CPA valve terminal

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal:

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

1 2

3

4

5

1 Pre−assembled cable with socket for connecting asolenoid coil

2 Clip with inscription field (per cable socket)

3 Yellow LED per cable socket, shows signal status of thepilot solenoid coils

4 Terminal lugs of pilot solenoid coils 12

5 Terminal lugs of pilot solenoid coils 14

Fig.�1/6: Electrical connecting and display elements of theCPA valve terminal with IC connection

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal with MP connection:

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎ


1 2

3

1 Inscription clips

2 Yellow LEDs, signal status displays of the pilotsolenoid�coils

3 SUB−D multi−pin plug (25−pin)

Fig.�1/7: Electrical connecting and display elements of theCPA valve terminal with MP connection

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal with CP connection:

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ


ÎÎÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎ

ÑÑÑÑÑÑ

ÎÎÎÎÎÎ


1 2 3

4

5

6

1 Green LED, status display of the CP connection

2 Incoming CP cable


4 Continuing CP cable

5 Earth terminal

6 Inscription clips

Fig.�1/8: Electrical connecting and display elements of theCPA valve terminal with CP connection

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal with AS−Interfaceconnection:

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ



ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

1 3

4

5

6

7

8

2

1 AS−Interface cable cap

2 Inscription clips of the valve sub−bases


4 Inscription clips of the AS−Interface connection

5 AS−Interface bus socket with yellow bus cable

6 Earth terminal

7 Green LED, status display of the CP connection

8 Cable socket for additional supply with black additionalsupply cable (optional)

Fig.�1/9: Electrical connecting and display elements of theCPA valve terminal with AS−Interface connection

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal with AS−Interfaceconnection and inputs:

ÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎ

ÎÎ


12

3

4

56

7

8

9

3

2

1 Sub−base for inputs with viewingwindow for LEDs

2 Inscription fields for addresses

3 Status LEDs:� Inputs (green)� Valves (yellow)

4 Cover

5 DIL switch (under cover)

6 Flat cable connections for AS−Interface:� Bus: Bus connection (yellow cable)� 24V DC: Auxiliary power supply (black cable)

7 M12 connector for AS−Interface busand additional power supply

8 Addressing socket

9 AS−Interface LEDs:� ASI LED (green)� Fault LED (red)� AUX/PWR LED (green)

Fig.�1/10: Electrical connecting, display and control elements of the CPA valve terminalwith AS−Interface connection and inputs

1. System summary


You will find the following electrical connecting and displayelements on the CPA valve terminal with CPX terminal:

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ


ÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ


1 2 3 4

1 Red LED, fault display of the pneumatic interface

2 DIL switch for setting the number of valve addresses

3 Inscription clips

4 Yellow LED, signal status displays of the pilot solenoids

Fig.�1/11: Electrical connecting and display elements of theCPA valve terminal with CPX terminal

Detailed instructions on the CPX pneumatic interface can befound in the supplementary manual for the CPX I/O modules(P.BE−CPX−EA−...).

1. System summary


Fitting


Chapter 2

2. Fitting


Contents

2. Fitting 2−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Mounting variants 2−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1 Wall mounting 2−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Hat−rail mounting 2−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Fitting


Contents of this chapter This chapter explains how you should fit and dismantle thecomplete CPA valve terminal.

Additional information Special information on replacing or adding pneumaticcomponents can be found in chapter 5.

CPA terminal with CPX terminal:

� Information on fitting the CPA valve terminal withCPX�terminal can be found in the CPX system manual.

� Information on fitting and dismantling the moduleelectronics and sub−bases can be found in the �Manualfor CPX I/O modules" and in the leaflet supplied with theproduct in the case of modules and components orderedat a later stage.

2. Fitting


2.1 Mounting variants

WarningUncontrolled movements of the connected actuators anduncontrolled movements of loose tubing can cause injuryto persons and/or damage to property.

Before carrying out fitting, installation and maintenancework, switch off the following:

� compressed air supply

� operating and load voltage supplies.

NoteHandle all modules and components of the CPA valveterminal with great care. Note especially the following:

� The specified torques must be observed.

� Electrostatic sensitive devices. Do not touch any contact surfaces.

The CPA valve terminal has already been prepared forincorporation in a system or machine using one of thefollowing fitting variants:

� Wall mounting

� H−rail mounting

NoteMount the CPA valve terminal so that there is sufficientspace for heat dissipation and so that the maximum limitsfor temperatures can be observed (see TechnicalSpecifications).

2. Fitting


2.1.1 Wall mounting

Fitting the CPA valve terminal with CPX terminal onto a wall isdescribed in the system manual P.BE−CPX−SYS−...

Fitting Proceed as follows:

1. Make sure that the mounting surface can support theweight of the CPA valve terminal (weights see appendix A).

2. Make sure there is sufficient space for connecting thepower supply cables and tubing.

3. Drill four mounting holes in the mounting surface (distancebetween holes see illustrations) and fasten the CPA valveterminal with M4 screws (tightening torque 0.8�Nm).


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1

232

4

4

4

CPA10 terminal

1 66.3 mm

2 23 mm

3 10.6 mm x number of sub−bases

4 4 holes for fitting onto a wall

CPA14 terminal

1 76.1 mm

2 26 mm

3 14.6 mm x number of sub−bases

4 4 holes for fitting onto a wall

Fig.�2/1: Mounting holes, CPA valve terminal

2. Fitting




1

2

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ÓÓÓÓ

1

1

1

114.258.5

66.3

7.5 11

3

5

4All dimensions in millimetres

CPA10−GE−ASI−...−Z

1 Wall mounting holes

2 66.3 mm

3 113.1 mm

4 46 mm + (10.6 mm x number of sub−bases)

CPA14−GE−ASI−...−Z

1 Wall mounting holes

2 76.1 mm

3 122 mm

4 52 mm + (14.6 mm x number of sub−bases)

Fig.�2/2: Wall mounting holes, CPA valve terminal with AS−Interface and inputs

2. Fitting


Dismantling Proceed as follows:

1. Prevent the hanging CPA valve terminal from falling downbefore you loosen it from the mounting surface.

2. Loosen the fastening screws as shown in the followingdiagram and remove the CPA valve terminal from themounting surface.

CPA variants Fastening

ÓÓÓ

ÓÓÓÓÓÓ

CPA valve terminal:� Two screws on both the left and right−hand

end plates

ÓÓÓ

ÓÓÓ

CPA valve terminal with AS−Interface and inputs:� One screw on the left−hand end plate and

2�screws on the right−hand end plate of theCPA pneumatics

� Two screws on both the left and right−handside of the AS−Interface module

ÓÓÓ

ÓÓÓÓÓÓ

CPA terminal with CPX terminal:� One screw on the left−hand end plate and

2�screws on the right−hand end plate of theCPA valve terminal

� 2 screws on the CPX pneumatic interface� 2 screws on the left−hand end plate of the CPX

terminal

Tab.�2/1: Removing the CPA valve terminal fitted onto a wall

2. Fitting


2.1.2 Hat−rail mounting

NoteH−rails fitted with CPA14 valve terminals can break if theyare subjected to vibration which exceeds the followingvalues:

� 0.15 mm travel at 10 ... 58 Hz,

� 2 g acceleration at 58 ... 150 Hz,

This can cause damage to the CPA valve terminal or to yourmachine or system.

· Use the wall fitting for CPA14 valve terminals.

Fitting the CPA valve terminal with CPX terminal onto a H−railis described in the system manual P.BE−CPX−SYS−...

For H−rail mounting of the CPA valve terminal, you will needthe corresponding mounting kit (see table).

CPA valve terminal ... Mounting kit Scope of delivery

� with CPX terminal� with AS−Interface and inputs

CPX10/14−BG−NRH � 3 M4 x 10 screws� 3 clamping components

� with IC connection� with MP connection� with CP connection� with AS−Interface connection

CPA−BG−NRH � 2 M4 x 10 screws� 2 clamping components

Tab.�2/2: H−rail mounting kits

2. Fitting



1. Make sure that the mounting surface can support theweight of the CPA valve terminal (weights see appendix�A).

2. Fit the H−rail (DIN mounting rail EN 50022 � 35x7.5;width�35�mm, height 7.5 mm). Make sure that there is suffi�cient space for connecting the supply cables and tubing.

3. Fasten the H−rail to the mounting surface at intervals ofapprox. every 100 mm.

4. Mount the H−rail clamping units on the end plates of theCPA valve terminal (see diagram).

5. Hang the CPA valve terminal onto the H−rail (see arrow A).

6. Swing the CPA valve terminal onto the H−rail (see arrow B).Make sure that the clamping component lies horizontallyto the H−rail.

7. Fasten the CPA valve terminal against tilting or sliding bytightening the retaining screws on both sides with 1.3 Nm.

1 H−rail

2 Clampingcomponent ofthe H−railclamping unit

3 Self−tappingM4x10 screw ofthe H−railclamping unit

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ÖÖÖÖ

ÔÔÔÔÔÔÔÔ

(A)

(B)

1

2

3

Fig.�2/3: Fitting the CPA valve terminal onto an H−rail

2. Fitting



1. Loosen the retaining screw of the H−rail clamping unit onthe left and right−hand end plates �(see diagram). Makesure that the clamping component lies horizontally to theH−rail.

2. Swing the CPA valve terminal forwards from the H−rail(see�diagram, arrow B).

3. Lift the CPA valve terminal off the H−rail (see diagram, arrow A).

1 H−rail

2 Clampingcomponent ofthe H−railclamping unit

3 Retaining screwof the H−railclamping unit

ÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔÔ

ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ

ÖÖÖÖ

ÔÔÔÔ

1

2

3

(A)

(B)

Fig.�2/4: Dismantling the CPA valve terminal

Installation


Chapter 3

3. Installation


Contents

3. Installation 3−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Compressed air preparation 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1.1 Operation with unlubricated compressed air 3−4 . . . . . . . . . . . . . . . . .

3.1.2 Operation with lubricated compressed air 3−5 . . . . . . . . . . . . . . . . . . . .

3.2 General instructions on installation 3−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Laying the tubing 3−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Connecting the CPA valve terminal 3−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 Pilot air supply 3−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.2 CPA valve terminal with pressure zone separation 3−13 . . . . . . . . . . . . .

3.4.3 Vacuum/low pressure operation 3−16 . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.4 Connecting the pneumatic lines 3−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.5 Connecting the electric cables 3−22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Address assignment of the valves 3−26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Installation


Contents of this chapter This chapter describes the tubing and cabling of the CPAvalve terminal. This includes in particular the following:

� General instructions on preparing the compressed air andon connecting the tubing

� Instructions on operation with an internal or external pilotair supply

� Instructions on operating CPA valve terminals withpressure zone separation

� Fitting the QS threaded connectors/cartridges

� Connecting the power supply

� Earthing the CPA valve terminal with CP or AS−Interfaceconnection (not with CPA valve terminal with AS−Interfaceand inputs)

� Address assignment of the valves

Further information Information on power supply to the CPA valve terminal withCPX terminals can be found in the CPX system manual

Instructions on the electrical connections of the CPA valveterminal with multi−pin or AS−Interface connection can befound in the leaflet supplied with the product.

Information on connecting the CPA valve terminal withCP�connection can be found in the CPsystem manual.

Information on connecting the CPA valve terminal withCPX�terminal can be found in the CP system manual.

3. Installation


3.1 Compressed air preparation

CautionDirty or incorrectly lubricated compressed air will reducethe service life of the valve terminal.

3.1.1 Operation with unlubricated compressed air

CautionToo much residual oil content in the compressed air willreduce the service life of the valve terminal.

� If bio−oils are used (oils with synthetic ester or true esterbasis, e.g. rape oil methylester) the residual oil contentmust not exceed 0.1 mg/m3 (see ISO 8573−1 class 2).

� If mineral oils are used (e.g. HLP oils as per DIN�51524parts 1 to 3) or corresponding oils on a polyalphaolefinebasis (PAO), the residual oil content must not exceed5�mg/m3 (see ISO 8573−1 class 4).

This avoids operative malfunction of the valves.

Excessive residual oil cannot be permitted irrespective of thecompressor oil, as otherwise the basic lubrication will bewashed out during the course of time.

3. Installation


3.1.2 Operation with lubricated compressed air

Operate system equipment with unlubricated compressed airif possible. This will prevent pollution of the environment.Festo pneumatic valves and actuators have been designed sothat, if used as intended, they will not require additionallubrication and will still achieve a long service life.

CautionOperation with lubricated compressed air will cause thelife−time lubrication, which is necessary for unlubricatedoperation, to be �washed out".

Note the following instructions if lubricated compressed airmust be used. The compressed air prepared with the compressor mustcorrespond in quality to unlubricated compressed air. If possible, do not operate all of your equipment withlubricated compressed air. The lubricators should, wherepossible, always be installed directly upstream of theactuator used.

CautionIncorrect additional oil and too much residual oil content inthe compressed air will reduce the service life of the valveterminal.

� Use the special oil OFSW−32 from Festo or the alternativeoils listed in the Festo catalogue (corresponding toDIN�51524−HLP32, basic viscosity 32CST at 40 °C).

� The additional lubrication must not exceed 25 mg/m3

(ISO 8573−1 class 5).

� Make sure that the lubricator setting is correct (see following section).

This avoids operative malfunction of the valves.

3. Installation


Setting the lubricator: With the machine running (typical operating status) 0.2 tomax. 1 drops/min. or 0.5 to 5 drops/1000 l air.

Checking the setting: The procedure described below can be used for checking thesetting of the lubricator.

Proceed as follows:

· Check the service units in respect of condensate andlubricator setting twice a week.

1. Ascertain the actuator which is furthest from thelubricator.

2. Ascertain the valve terminal which controls this cylinder.

3. Remove the silencer, if fitted, from port (3/5).

4. Hold a piece of white cardboard 10 cm in front of theexhaust port.

5. Let the system run for a short period.

� There must be only a slight yellow colouring on thecardboard. If oil droplets appear, this is an indicationthat too much oil has been used.

Another indicator of over−lubrication is the coloration or thecondition of the exhaust air silencer. A distinctly yellowcolouring of the filter element or drops of oil on the silencerindicate that the lubricator setting is too high.

3. Installation


3.2 General instructions on installation


Before carrying out fitting, installation and maintenancework, switch off the following:

� compressed air supply

� operating and load voltage supplies.

Pay attention to the following:The components of the valve terminal contain electrostaticallysensitive elements. The components will be damaged if youtouch the contact surfaces of the plug connectors or if you donot observe the handling specifications for electrostaticallysensitive components.

3. Installation


3.3 Laying the tubing

If elbow connectors or multiple distributors are used,the�airflow will be reduced slightly.

Connecting Proceed as follows:

1. Push the tubing as far as possible into the tube couplingof the cartridge 1 (see Fig.�3/1).

2. If necessary, pull the locking ring 2 over the tubecoupling.

3. For reasons of clarity, group the tubing together with: � tubing straps or � multiple hose holders.

1 Cartridge insert

2 Locking ring

12

Fig.�3/1: Fitting the tubing

Disconnecting Proceed as follows:

WarningIf the pneumatic tubing is under pressure when disas�sembled, it may perform sudden unexpected movements,causing injury to persons. Carry out the following stepsbefore disconnecting the pneumatic tubing on the valveterminal:

· Switch off the compressed air supply.

· Make sure that all pneumatic tubing is pressureless.

· Exhaust all actuators controlled by valves which areclosed in normal or mid−positions.

3. Installation


NoteTo disconnect the hoses in the cartridges, use releasingtool type QSO from Festo, or a screwdriver. When using a screwdriver:

· Press down the locking ring only with the broad side ofthe blade.

1. Press down the locking ring 2 of the cartridge 1.

2. Pull out the tubing.

3. Seal unused connections with blanking plugs 3.

1 Cartridge insert

2 Locking ring

3 Blanking plug

1

2

3

Fig.�3/2: Disconnecting the tubing

3. Installation


3.4 Connecting the CPA valve terminal

In the case of sub−bases fitted with blanking plates, seal theworking lines (2) and (4) with blanking plugs or blankingplugs to prevent dirt from entering.

In order to guarantee the optimum efficiency of your CPAvalve terminal, we recommend in the following cases that youconnect the compressed air tubing and, if necessary, also theexhaust air tubing on both sides:

� when large volume cylinders are operated at high speeds

� when several valves are switched simultaneously to theflow position.

3.4.1 Pilot air supply

Caution� If possible, operate the CPA valve terminal withnon−lubricated pilot air (connections 12/14). Otherwise observe the instructions in the section 3.1.2.

� With CPA valve terminals with internally branched pilotair supply, the above mentioned instruction also appliesto the supply air (port (1)).

With CPA valve terminals with two pressure zones andinternally branched pilot air:

� Due to the internally branched pilot air supply in theright end plate, the pressure in the right−hand pressurezone must be 3 ... 8 bar.

Pilot control of the valve solenoid coils can be undertakenwith internal or external pilot air, depending on the right endplate. You can ascertain the pilot control variant for whichyour CPA valve terminal is equipped by the type designationon the right end plate (see table).

3. Installation


CPA valve terminal Right end plate type

with external pilot air supply CPA�...−EPR−S

with internal pilot air supply CPA�...−EPR

Tab.�3/1: End plates for internal or external pilot air supply

Internal pilot air supply

If the supply pressure of your CPA valve terminal lies between3�...�8�bar, you can operate the pilot control with internallybranched pilot air. The pilot air supply in the right end plate isbranched here from supply channel 1.

Note· Internal pilot air supply is branched centrally fromsupply port (1) to the right end plate for all pilotcontrols. This also applies if the MPA valve terminal isoperated with several pressure zones (see Fig.�3/6).

If the CPA valve terminal with internal pilot air supply is used,the port (12/14) must be fitted with a blanking plug (Fig.�3/3).

ÓÓÓÓÓÓÓÓ

ÓÓÓ

ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ

ÓÓÓÓÓÓ

ÓÓÓÓÓÓ

ÓÓÓÓÓÓ

ÓÓÓ

ÓÓÓ

ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ

1

1 Port (12/14)

Fig.�3/3: Internal pilot air supply

3. Installation


External pilot air supply

If the supply pressure lies below 3 bar or above 8 bar, pilotcontrol of the valve solenoid coils must be carried out withexternal pilot air. In this case, the pilot air is suppliedexternally via the pilot port (12/14).

Note· Use closed−loop regulated external pilot air (3 ... 8 bar),reliable faultless operation of the CPA valve terminal isthen possible, e.g. even with fluctuating supply pressure.

· The external pilot air is supplied centrally via pilot port12/14 on the right end plate. This also applies when theCPA valve terminal is operated with different pressurezones (see Fig.�3/6).

· If your CPA valve terminal is fitted with valve sub−baseswith Ident. code H, K or N (3/2−way valves), the externalpilot air supply must be set to correspond with thesupply pressure at which these valve are operated(see�diagrams).

1 Pilot pressure ofthe external pilotair supply at port(12/14) [bar]

2 Supply pressureat port (1) [bar]

3 Switch−on pilotpressure of thepilot control

1

2

3

Fig.�3/4: Diagram for CPA10: External pilot air supply as a factor of the supply pressurefor valve sub−bases with Ident. code N, K and H

3. Installation


1 Pilot pressure ofthe external pilotair supply at port(12/14) [bar]

2 Supply pressureat port (1) [bar]

3 Switch−on pilotpressure of thepilot control

1

2

3

Fig.�3/5: Diagram for CPA14: External pilot air supply as a factor of the supply pressurefor valve sub−bases with Ident. code N, K and H

3.4.2 CPA valve terminal with pressure zone separation

The CPA valve terminal can be fitted with the followingnumber of pressure zones depending on the connectionvariant:

Electricalconnection variant

IC, MPor�CPX

CP AS−Interface

Pressure zones 1 ... 12 1 ... 9 1 ... 3

Tab.�3/2: Maximum number of pressure zones

The pressure zones are implemented by means of specialsub−bases which block the compressed air channel (1).

3. Installation


NoteNote the following in the case of CPA valve terminals whichare operated with internal pilot air supply and which havetwo or more pressure zones:

· The pilot air supply for all pilot controls is branchedcentrally from supply port (1) in the right end plate(see�Fig.�3/6).

· The pressure zone on the outside right (supplied viasupply port (1) of the right end plate), must be operatedwith a pressure of between 3 ... 8 bar.

NoteValve sub−bases on sub−bases with pressure zoneseparation are supplied with compressed air which isprovided to the left of the sub−bases (see Fig.�3/6).

You can ascertain the number of pressure zones with whichyour CPA valve terminal is equipped,by the designation on thespecial sub−base (grey dot above work connection (2)).

CPA valve terminal with two pressure zones

These CPA valve terminals have a sub−base with pressurezone separation. The left−hand pressure zone is supplied withcompressed air via port (1) on the left end plate, while theright pressure zone is supplied with compressed air via port(1) on the right end plate.

3. Installation


CPA valve terminal with more than two pressurezones

A sub−base with pressure zone separation is required for eachpressure zone. The external pressure zones are supplied withcompressed air via port (1) on the end plates, while the otherpressure zones are supplied with compressed air via port (2) ofthe sub−bases, which are equipped with additional compressedair supply plates (see fig.). To remove the exhaust air, a silencercan be installed in port (4) of these sub−bases. If port (4) is notused, it must be sealed with a blanking plug.



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1

2

3 4 5

1 Additional pressure supply plate

2 Designation of the sub−bases with pressure zone separation (grey dot)

3 Pressure zone 1 (compressed air supply via port (1) of the left end plate)

4 Pressure zone 2 (compressed air supply via port (2) of the sub−base withadditional compressed air supply plate)

5 Pressure zone 3 (compressed air supply via port (1) of the right end plate)

Fig.�3/6: Example: Pressure zone separation and external pilot air supply

3. Installation


3.4.3 Vacuum/low pressure operation

The CPA valve terminal can be operated with vacuum or lowpressure , �0.9 ... . 3 bar under the following conditions:

NoteValve sub−bases with 3/2−way valves (Ident. code N, K or H)are not suitable for operation with vacuum or low−pressure.

· Operate these valves in a separate pressure zone.

· The supply pressure for this pressure zone must be setin accordance with the diagram in Fig.�3/4 (CPA10) orFig.�3/5 (CPA14)

The following conditions must be fulfilled, in order that youcan operate your CPA valve terminal at supply port 1 withvacuum or low pressure between �0.9 ... 3 bar:

� The pilot control is operated with regulated externalpilot�air supply.

� The valve terminal is fitted with the following valvesub−bases:

� 5/2−way valve, single−solenoid (Ident. code M)

� 5/2−way valve, double solenoid (Ident. code J)

� 5/3−way valves pressurized in mid−position(Ident.�code B), blocked (Ident. code G) or exhausted(Ident. code E).

3. Installation


3.4.4 Connecting the pneumatic lines

Note· Seal unused connections on the CPA valve terminal withblanking plugs.

Fit the tubing as described below. Then lay the tubing.

NoteOn CPA valve terminals with large surface−mountedsilencers, exhaust connections (3/5) and (82/84) arerouted via the silencer. Port (82/84) on the left end plateis then sealed with a blanking plug.

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3/5

82/84 13/5 1

12/14

Fig.�3/7: Pneumatic connections on the CPA valve terminal

3. Installation


Proceed as follows:

1. Use the following table for selecting the correct cartridge:

ConnectionidentifierISO 5599

Line CPA10 terminal Cartridge size

CPA14 terminal Cartridge size

(1)(3/5)

Compressed air/vacuum,exhaust air

Tube coupling:QSP14−6QSP14−8QSP14−1/4−UQSP14−5/16−U

Blanking plugs:QSP14−PTB



(2) or (4)(12/14)(82/84)

CPA14terminal:Values inbrackets for(12/14) or(82/84)

Work air/vacuum,additional pressuresupply, exhaust of pilotair supply



Silencer:UC−QS−6HUC−QS−...H

Tube coupling:QSP14−6 (QSP10−4)QSP14−8 (QSP10−6)QSP14−1/4−U (QSP10−5/32−U)QSP14−5/16−U�(QSP10−3/16−U)

Blanking plugs:QSP14−PTB (QSP10−PTB)

Tab.�3/3: Cartridge

2. Check that the seal of the cartridge is greased. Ifnecessary, grease the seal with Festo F2 grease.

3. Press the cartridges into the ports.

4. Make sure that the cartridge is seated as far as possiblein the hole. Measure here the distance between theconnection surface and �the locking ring (see diagram).

3. Installation


1

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1 5.5 mm (CPA10) or 6.5 mm (CPA14)

Fig.�3/8: Checking the cartridge fitting

3. Installation


5. Secure the cartridge with the clamping springs (see diagram).

1 Clamping spring

2 Cartridge

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1 2

Fig.�3/9: Fitting and securing the cartridge

6. Fit the tubing as shown in Fig.�3/1.

3. Installation


Observe the following instructions on installing thepneumatic components. Only then can you guaranteetrouble−free operation.

NoteIn the case of several systems with centrally ductedexhaust:

· Use non−return valves in the common exhaust lines (3/5)and (82/84) in order to prevent functional impairmentdue to back pressures.

1 CPA valveterminal 1

2 Common (3/5)

3 Central (82/84)

4 Central (3/5)

5 CPA valveterminal 2

6 Common (82/84)

1

2

3 4 5

6

6

2

2

Fig.�3/10: Common lines with non−return valves

3. Installation


3.4.5 Connecting the electric cables

Warning· Use only PELV circuits as per IEC/DIN EN 60204−1 forthe electric power supply (protective extra−low voltage,PELV).Also observe the general requirements for PELV circuitslaid down in IEC/DIN EN 60204−1.

· Use only power sources that guarantee reliableelectrical isolation of the operating voltage as perIEC/DIN EN 60204−1.

Protection against electric shock (protection against directand indirect contact) is guaranteed in accordance withIEC/DIN EN 60204−1 by using PELV circuits (electricalequipment of machines, general requirements).

NoteCheck within the framework of your EMERGENCY STOPcircuit to ascertain the measures necessary for puttingyour machine/system into a safe state in the event of anEMERGENCY STOP (e.g. switching off the operating voltagefor the valves and output modules, switching off the com�pressed air).

CPA valve terminal with CPX terminal

Instructions on the electrical connections and for earthing thevalve terminals can be found in chapter 3 of the CPX systemmanual.

CPA valve terminal with CP connection

Instructions on the electrical connections, connecting cablesand current consumption can be found in the manual�CP�system, installation and commissioning", chapter 3.

3. Installation


CPA valve terminal with MP or AS−Interface connection

Instructions on the electrical connections can be found in theleaflet supplied with the product.


With this variant of the CPA valve terminal each solenoid coilis connected separately.

Use the pre−assembled plug socket KMYZ−7−24−...−LED fromFesto for connecting the solenoid coils. The holding currentreduction for the solenoid coil and an LED are incorporated inthe transparent plug of this plug socket. The LED shows theswitching status of the solenoid coils.

NoteIf the CPA valve terminal with IC connection is used atmaximum operating temperature and 100 % duty cycle,it�must be operated with current reduction. Use here theplug socket KMYZ−7−24−...−LED.

Connect the solenoid coils as follows:

1. Insert the socket onto the terminal lugs of the appropriatepilot solenoid coil or adapter. The socket can be fittedturned 1800. Make sure that the centring bolt betweenthe terminal lugs grips into the hole in the socket(see�diagram).

2. Screw the socket together with the retaining screw with0.2 Nm.

3. Installation


1 Plug socket

2 Terminal lug ofvalve solenoid

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1

2

Fig.�3/11: Fitting the individual plug sockets

3. Installation


Earthing the CPA valve terminal with CP orAS−Interface connection

Earthing the CPA valve terminal with AS−Interface and inputsis not necessary.

NoteEarth your CPA valve terminal.

· Connect the earth connection on the electricalconnection block (see diagram) with low impedance(short cable with large cross−sectional area) to the earthpotential.

You can thereby avoid interference from electromagneticsources and ensure electromagnetic compatibility inaccordance with EMC directives.

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1

1 Earth terminal

Fig.�3/12: Earthing the CPA valve terminal with CP connection

3. Installation


3.5 Address assignment of the valves

CPA valve terminal with MP, CP, AS−Interface connection orCPX terminal

For addressing the CPA valve terminal with AS−Interface andinputs, also note the supplementary instructions suppliedwith the product.

� Addresses should be assigned in ascending consecutiveorder.

� Depending on the interlinking block, a valve positionoccupies one address (CPA�...−EV1) or two addresses(CPA�...−EV2).You can ascertain which interlinking blocks are fitted onyour CPA valve terminal by means of the identificationmarking on the interlinking block (see diagram).


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1

Fig.�3/13: Marking the interlinking blocks

3. Installation


� Counting begins from left to right, on the individual valvesfrom the rear to the front (see diagram).

� If an interlinking block occupies 2 addresses, thefollowing applies:

� solenoid coil 14 occupies the lower−value address,

� solenoid coil 12 occupies the higher−value address.

1 Valve sub−basewith two solenoidcoils

2 Blanking platewith interlinkingblock EV2

3 Blanking platewith interlinkingblock EV1

4 Valve sub−basewith one solenoidcoil

5 Addresses ofcoils 12

6 Addresses ofcoils 14

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12

14

12

14

12

14 14

12

14

87540 2

961 3

10

11

12

1 2

34

1 1

4

5

6

Fig.�3/14: Example: Address assignment of a CPA valve terminal with MP connection and8 valve positions (top view)

3. Installation



· The addresses must be assigned in ascending orderwithout gaps.

· Counting begins from left to right, on the individual valvesfrom the rear to the front (see diagram).

1 Valve sub−basewith two solenoidcoils

2 Valve sub−basewith one solenoidcoil

3 Blanking plate

9

75

3

8

6

420

1

1 2 3

Fig.�3/15: Address assignment of a CPA valve terminal with IC connection and 8 valvepositions (top view)

Commissioning


Chapter 4

4. Commissioning


Contents

4. Commissioning 4−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 General Information 4−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.1 Before commissioning 4−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.2 Pressure increase in the overall supply 4−4 . . . . . . . . . . . . . . . . . . . . . .

4.2 Manual override (MO) 4−6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Checking the valves and the valve−actuator combination 4−9 . . . . . . . . . . . . . . .

4.4 LED display of the valves 4−15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5 Troubleshooting 4−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.1 Impairment of function 4−17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.2 Operating states of the pneumatic system 4−18 . . . . . . . . . . . . . . . . . . .

4. Commissioning


Contents of this chapter This chapter describes the commissioning of the CPA valveterminal. This includes in particular the following:

� Checking the valve functions

� Operating the manual overrides

� Checking the valve−actuator combination

� Troubleshooting

� Assignment of the LEDs

Further information Commissioning of the CP system is described in theappropriate manual for the CP node.

Commissioning of the CPX terminal is described in theappropriate manual for the CPX fieldbus node.

4. Commissioning


4.1 General Information

4.1.1 Before commissioning

· Switch off the power supply before connecting ordisconnecting plugs (otherwise this could lead tofunctional damage).

· Only commission a valve terminal that has been mountedand wired completely.

· Make sure that there is a sufficient supply of fresh air(cooling) for the following operating conditions: � when the maximum number of valves are fitted � when the maximum operating voltage is applied � when the solenoid coil is constantly under stress.

· Please observe the following instructions on building uppressure in the overall supply.

4.1.2 Pressure increase in the overall supply

WarningIf the pressure build−up of the pilot air supply is too slowor delayed, this may cause the actuators to performsudden unexpected movements under the followingconditions:

� when the compressed air is connected via a soft−startvalve (gradual pressure build−up) and

� if there are electric signals (e.g. after EMERGENCYSTOP).

This can cause damage to the machine or system and eveninjury to persons.

· Operate the valve terminal with an external pilot airsupply (3 ... 8 bar) Branch the pilot air supply in front ofthe soft−start valve (see diagram).

4. Commissioning


The pilot air supply must reach a pressure of 3 ... 8 barimmediately after it is switched on. Otherwise it is notensured that the valve will switch directly (see diagram). If the pressure is less than 3 bar, there may be a delay beforethe valve is switched, in spite of an electric signal beingpresent. The gradual pressure build−up of the overall supplydoes not affect the actuator in that case. The actuator wouldreact suddenly (e.g. a cylinder would extend or retractsuddenly, depending on the valve function).

1

4 2

5 3

14 12

1

2

1

12/14

12/14

3

82/84

2

1 Externally supplied pilot air (3 to 8 bar), branched infront of the safety start−up valve

2 Safety start−up valve (slow build up in pressure ofcomplete supply)

Fig.�4/1: Example of valve−cylinder combination withgradual pressure build−up of the overall supply

4. Commissioning


The table below shows the effects of gradual start−uppressurisation when there are electric signals:

External pilotair supply

Pressure risein overallsupply

Pressure rise inthe pilot airsupply (12/14)

Time when avalve reverses

Movement ofthe actuator

branched after thesoft−start valve

slow slow after pressurerise at (1)

fast

branched in frontof the soft−startvalve

slow fast before pressurerise at (1)

slow

Tab.�4/1: Effects of slow start−up pressurisation

4.2 Manual override (MO)

You should use the manual override especially whencommissioning the pneumatic system, in order to check thefunction and operation of the valve or the valve−actuatorcombination.

By actuating the manual override, you can switch the valvewithout an electric signal. You only need to switch on thecompressed air supply.

The manual override has been designed to be used asfollows:

Manual override design Mode of operation

Manual overridenon−detenting

After actuation the manual overrideis reset automatically by a spring

Manual override detenting The manual override remainsactuated until it is reset by hand

Manual override concealed No manual override function

Tab.�4/2: Variants of the manual override

4. Commissioning


The following manual override variants are available for CPAvalve terminals with MP, CP, AS−Interface connection or CPXterminal:

1

2

3

4

Manual override detenting Non−detenting manual override

1 Slide of detenting manual override to� pilot solenoid coil 14

2 Slide of detenting manual override to� pilot solenoid coil 12

3 Plunger of non−detenting manualoverride to� pilot solenoid coil 14

4 Plunger of detenting manual overrideto� pilot solenoid coil 12

Fig.�4/2: Manual override variants of the CPA valve terminal with MP, CP, AS−Interfaceconnection or CPX terminal

4. Commissioning


Both the detenting and the non−detenting types of manualoverride �can be used with CPA valve terminals withIC�connection.

The diagram below shows the assignment of the manualoverride to the solenoid coils:

1

2

1 Detenting/non−detenting manual override to pilot solenoid coil 14

2 Detenting/non−detenting manual override to pilot solenoid coil 12

Fig.�4/3: Position of the manual override on CPA valveterminals with IC connection

4. Commissioning


4.3 Checking the valves and the valve−actuator combination

NoteBefore commissioning the CPA valve terminal, note thespecifications concerning the medium, see section�Pilot�air supply" in the chapter �Installation".

The CPA valve terminal should be commissioned as follows:

Commissioning variants Activity

Preliminary test of thepneumatic tubing

Test the valve−actuator combinationby means of the manual override

Complete commissioning ofthe entire system

Installing and connecting the entiresystemProgram control via PLC/industrial PC

Tab.�4/3: Commissioning variants

Commissioning the pneumatic components by means of themanual override is described below.

Commissioning of the CPX terminal is described in theappropriate manual for the CPX fieldbus node.

4. Commissioning


WarningBefore actuating the MO:

Uncontrolled actuation of solenoid coils can cause theactuators to perform sudden unexpected movementswhich may cause personal injury and material damage.

· Disconnect the power supply for the solenoid coils fromthe relevant connections on the CPA valve terminal.

You will thereby avoid undesired actuation of the solenoidcoils.

Before applying the operating voltage:

During commissioning, manual override actuations whichare in the switched state can cause actuators to performsudden unexpected movements. These movements cancause injury to human beings and damage to property.

· Make sure that all manual override actuations are resetto their normal positions.

You will thereby avoid undefined switching states of thevalves.

Proceed as follows:

WarningBefore testing the valve−actuator combination:

� make sure that nobody is in the danger zone.

NoteA valve that has been switched by an electric signal cannotbe reset by the manual override. The electric signal isdominant in this case.

· Reset the electric signal before actuating the manualoverride.

4. Commissioning


1. Switch on the compressed air supply.

2. Check the functioning and operation of each individualvalve−actuator combination by actuating the manualoverride as shown in the following diagrams.

NoteIncorrect actuation of the non−detenting manual overridecan lead to malfunctioning or damage to the manualoverride.

· Use a blunt pencil for actuating the non−detentingmanual override.

· Actuate the manual override only with max 30 N.

3. In the case of the CPA valve terminal with detentingmanual override: After testing the valves, make sure thatall manual overrides are in their normal positions again.

4. Switch off the compressed air supply after testing thevalves.

4. Commissioning


Non−detenting operation of manual override (automatic)

CPA valve terminalwith MP, CP,AS−Interfaceconnection orCPX�terminal

CPA valve terminalwith IC connection

Operation Valve response

Press in the plunger of the MOuntil the valve switches.

NoteIn the case of CPA valve terminalswith IC connection: do not turnthe pressed−down plunger, as themanual override will otherwisedetent

The valve:� moves to the

switchingposition

Keep the plunger of the MOpressed

� remains in theswitchingposition

Release the plunger (mechanical spring resets theplunger of the manual override tothe initial position)

� returns to thenormal position(not with doublesolenoid valvetype J)

Tab.�4/4: Non−detenting manual override

4. Commissioning


Non−detenting actuation of the manual override (manual reset)

CPA valve terminalwith MP, CP,AS−Interfaceconnection orCPX�terminal

CPA valve terminalwith IC connection

Operation Response of thevalve

CPA valve terminal with MP, CP,AS−Interface connection or CPXterminal:· Move the slide of the MO as far

as possible in the switchingposition

CPA valve terminal withIC�connection:· Press in the plunger of the MO

until the valve switches· Then turn the plunger in the

clockwise direction as far aspossible

The valve:� moves to the

switchingposition

· Leave the slide or plunger inposition

� remains in theswitchingposition

CPA valve terminal with MP, CP,AS−Interface connection or CPXterminal:· Press the slide of the manual

override into the normalposition as far as possibleagain

CPA valve terminal withIC�connection:· Then turn the plunger in an

anti−clockwise direction as faras possible

· Then release the plunger

� returns to thenormal position(not with doublesolenoid valvetype J)

Tab.�4/5: Detenting actuation of the manual override

4. Commissioning


CautionDuring commissioning, manual overrides that are in theswitched state can cause actuators to perform suddenunexpected movements. These movements can causeinjury to persons and damage to property. If the manualoverride is in the actuated state, it is not possible to resetthe valve to its neutral position with an electric signal. The manual override is dominant in this case.

· Make sure that double−solenoid valves (Ident. code J)are reset to their normal positions. Actuate here manualoverride 12 of the relevant valve or apply current to pilotsolenoid coil 12.

· Reset the detenting manual override actuations to theirnormal positions again. The valve sub−bases with Ident.code H, K and N are each fitted with two valves. Withmanual override 14 you control the valve on controlside�14; with manual override 12 you control the valveon control side 12 (see switching symbols of the valvesub−bases appendix B).

In this way, you can avoid undefined switching states whencommissioning the machine/system.

4. Commissioning


4.4 LED display of the valves

There is a yellow LED for every solenoid coil. This LED showsthe switching status of the solenoid coil.

The status of the LED to the manual override on CPA valveterminals with MP, CP, AS−Interface connection or CPXterminal.

Note the assignment of the LEDs to the relevant manualoverride:

� Left−hand LED in the electrical bridge for the front manualoverride (12)

� Right−hand LED in the electrical bridge for the rear manualoverride (14)

1 LED and manualoverride for pilotsolenoid coils 14


2

1

Fig.�4/4: Assignment of the LED to the manual override on CPA valve terminals with MP,CP, AS−Interface connection or CPX terminal

4. Commissioning


The status of the LED to the manual override on CPA valve ter�minals with IC connection is shown in the following diagram:


2 LED and manualoverride for pilotsolenoid coils 12 1

2

Fig.�4/5: Assignment of the LED to the manual override on CPA valve terminals withIC�connection

The LEDs show the switching status of the valve solenoidcoils. The meaning is shown in the following table.

LED Switching position of the valve Meaning

yellow out Normal position Logical 0 (signal not applied)

yellow lit *) � Switching positionor

� Normal position

Logical 1 (signal is present)

Logical 1 but:� The operating voltage of the outputs lies

below permitted tolerance range (20.4 V to 26.4 V DC)

� Compressed air supply not OKor

� Pilot exhaust blockedor

� Servicing required

*) With double−solenoid valves (Ident code J) the LED lights up only when the signal is present.

Tab.�4/6: Meaning of the LED display

4. Commissioning


4.5 Troubleshooting

4.5.1 Impairment of function

When the compressed air supply is switched on or when theindividual valves are subsequently checked, you can learnthe following about the operating status of the pneumaticsystem:

Operating status of thepneumatic system

Error handling when the compressed air supply has beenswitched off

Air escapes from ...� common line or working

line connections� between the modules

· Check the tubing fitting

· After switching on again, set pilot air supply to 3 ... 8 bar

The valve or the pneumaticsystem ...� does not react as

expected

� not

· Check the installation of the tubing lines· Check the electric cables

· Bring the detenting manual override into the normal position�· After switching on again check the operating pressure

(for each pressure zone, if necessary)· Set operating pressure in accordance with instructions in chapter 3

With valve terminals which must be operated with regulated externalpilot air: and are equipped with 3/2−way valves:· After switching on again, check the pilot pressure

(if necessary, set as a factor of the operating pressure, see chapter 3)· Servicing required

Tab.�4/7: Function impairment of the pneumatic system

4. Commissioning


4.5.2 Operating states of the pneumatic system

The following conditions should be fulfilled, in order that thedesired pneumatic operating states listed below can beachieved:

Desired pneumaticoperating status

Condition Comment

Zero−leakage � Tubing connected with care� Regulated pilot air supply

fast reaction Sufficient pressure supply by meansof pressure supply modules

· Exhaust the CPA valve terminal atthe left and right end plates (3/5)

Trouble−free Non−return valves in commonexhaust line

This applies when several systemswith centrally ducted exhaust areused

Two or morepressure zones

Limiting the pressure zones with aseparator plate

Subsequent conversion possible(see chapter 5)

Vacuum operation/low−pressureoperation

Separately supplied regulated pilotair supply (3 ... 8 bar)

Vacuum/low−pressure operation notwith 3/2−way valves

EMERGENCY STOP ofpressure zones

Guaranteeing the controller functionfor the pilot air supply despite theoverall supply being switched off

The controller regulates the pilot airsupply to all valve sub−bases of anCPA valve terminal

Slow start−up afterEMERGENCY STOP

If control signals are present, thepilot air supply must have a pressureof 3 ... 8 bar

Tab.�4/8: Pneumatic operating states

Maintenance and conversion


Chapter 5

5. Maintenance and conversion


Contents

5. Maintenance and conversion 5−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 General preventive action 5−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Dismantling the CPA valve terminal 5−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Maintenance of the CPA valve terminal 5−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3.1 Cleaning the flat plate silencer 5−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 Replacing CPA valve terminal components 5−8 . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4.1 Replacing valve sub−bases, blanking plates or additional supply plates 5−8 . . . . . . . . . . . . . . . . . . .

5.4.2 Replacing the large surface−mounted silencer 5−10 . . . . . . . . . . . . . . . .

5.4.3 Replacing the end plate, sub−base or interlinking block 5−11 . . . . . . . . .

5.5 Conversion work on the CPA valve terminal 5−18 . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5.1 Conversion from non−detenting to detenting/non−detenting manual�over�ride 5−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5.2 Conversion to internal or external pilot air supply 5−19 . . . . . . . . . . . . .

5.5.3 Converting the CPA valve terminal to different pressure zones 5−21 . . .

5.5.4 Conversion of valve position for actuating one or two solenoid coils . . . 5−23

5.6 Adding/removing valve positions 5−25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



Contents of this chapter This chapter deals with the maintenance and conversion ofthe CPA valve terminal. This includes in particular thefollowing:

� Cleaning the flat plate silencers

� Replacing or removing components in valve positionssuch as valve sub−bases, blanking plates or additionalpressure supply plates

� Replacing the large surface−mounted silencer

� Replacing end plates, sub−bases or interlinking blocks

� Modifying the type of manual override

� Conversion to internal or external pilot air supply

� Conversion of valve positions for actuating one or twovalve solenoid coils

� Adding or removing valve positions

Further information Information on fitting/dismantling the CPA valve terminal withCPX terminals can be found in the CPX system manual

Information on the electrical connections of the CPA valveterminal with a CPX terminal can be found in the CPX systemmanual.

Instructions on the electrical connections of the CPA valveterminal with multi−pin or AS−Interface connection can befound in the leaflet supplied with the product.

Information on connecting the CPA valve terminal withCP�connection can be found in the CPsystem manual.



5.1 General preventive action


Before carrying out installation and maintenance work,switch off the following:

· compressed air supply

· operating and load voltage supplies.

NoteHandle all the components of the CPA valve terminal withgreat care. Note especially the following when mountingcomponents:

· Screws must be fitted accurately (otherwise threads willbe damaged).

· Screws must be fastened only by hand. Screws must befitted so that the self−tapping threads can be used.

· The specified torques must be observed.

· Threaded connections must be mounted free of offsetand mechanical tension.

· Check the seals for damage (IP65).

· The contact surfaces must be dry and clean (sealing effect, avoid leakage and contact faults).



5.2 Dismantling the CPA valve terminal

Providing that the CPA valve terminal is easily accessible andif the following conditions are fulfilled, it is not necessary todismantle the CPA valve terminal:

� when replacing or removing components in valvepositions

� when adding components, providing it is not necessary toreplace or insert sub−bases or interlinking blocks.

Disconnecting the electrical connections

Connecting variants Procedure

CP connection 1. Mark the incoming and the continuing CP cable.2. Loosen the union nuts of the CP cable.3. Pull the CP cable away from the connection block.

MP connection 1. Loosen the diagonally offset fastening screws of the sub−D multi−pin plug.2. Pull the sub−D plug away from the connection block.

AS−Interface connection 1. Loosen the retaining screws of the AS−Interface bus socket and ifapplicable of the additional supply.

2. Pull the sockets away from the connection block.

Additionally for AS−Interface with inputs:3. Loosen the union nuts of the cables at the inputs.4. Pull the cables away from the inputs.

IC connection 1. Mark all the connector plugs of the valve solenoids.2. Loosen the locking screws on the connector plugs.3. Pull the plugs carefully away from the terminal lugs.

CPX terminal 1. Mark all electrical connecting cables.2. Loosen and remove these cables.

Tab.�5/1: Disconnecting the electrical connections



Disconnecting the pneumatic connections

Disconnecting the pneumatic connections is described inchapter 3.

Removing the CPA valve terminal

Removing the CPA valve terminal from the mounting surfaceis described in chapter 2.



5.3 Maintenance of the CPA valve terminal

5.3.1 Cleaning the flat plate silencer

CautionDirt in the flat plate silencer can cause an increase inpressure in channels (3) and (5).

· Clean the flat plate silencer insert if it is yellow/black ora dark colour, or replace it by a new insert.

· Do not use TRI for cleaning, but rather petrol or paraffin.

· Observe the safety regulations for handling easilyinflammable cleaning agents.

In this way you can ensure that the flat plate silencerfunctions correctly and that the valves operate correctly.

Proceed as follows:

1. Loosen the 4 fastening screws of the flat plate silencerand remove it from the end plate.

2. Clean the flat plate silencer with petrol or paraffin.

3. Check the seal between the end plate and the silencer fordamage or dirt. Replace the seal if it is damaged.

4. Make sure that the seal is seated correctly. It must lie inthe recess in the end plate.

5. Fasten the flat plate silencer only with the original screws.Tighten the screws in diagonally opposite sequence:

� CPA10: 0.7 Nm (±0.1 Nm)

� CPA14: 0.8 Nm (±0.1 Nm)



5.4 Replacing CPA valve terminal components

Components on the valve sub−bases can easily be removedfor maintenance and conversion work.

The following components can be mounted on one sub−base:

� one valve sub−base or

� one blanking plate or

� one additional supply plate.

NoteOnly one valve sub−base with a solenoid coil (single−sole�noid valve, Ident code M) can be fitted in a valve positionwith interlinking block EV1. Valve sub−bases with two solenoid coils may only be fitted to a valvelocation withinterlinking block EV2.

5.4.1 Replacing valve sub−bases, blanking plates or additional supplyplates


1. Loosen the fastening screws of the relevant components(position of the fastening screws see diagram). In order todo this, use a screwdriver with a narrow blade.

2. Remove the component from the sub−base of the CPAvalve terminal.



1 CPA valve terminalwith MP, CP,AS−Interfaceconnection orCPX terminal

2 CPA valve terminalwith IC connection

1 2

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Fig.�5/1: Removing valve sub−bases


1. Make sure the seal is not damaged.

2. Replace seals if they are damaged.

3. Make sure that the seal is seated correctly. It must lie in the recess in the sub−base.

4. Fitting valve sub−bases on CPA valve terminals with MP,CP, AS−Interface connection or CPX terminal. Carefully clipthe electric bridge onto the new valve sub−base. Makesure that the connector plugs of the solenoid coils do notbreak off.

5. Place the component on the sub−base.

6. Screw the component at first only slightly and thentighten with the following torque:� CPA10: 0.25 Nm (+0.05 Nm)� CPA14: 0.3 Nm (±0.05 Nm)



Before fitting a valve sub−base onto a CPA valve terminal withIC connection, you must first carry out the following:

1. Carefully insert the marked IC connector plug onto theterminal lugs of the relevant solenoid coils.

2. Tighten the locking screws on the connector plugs with0.2 Nm.

5.4.2 Replacing the large surface−mounted silencer


1. Loosen the four retaining screws of the largesurface−mounted silencer.

2. Remove the silencer from the end plate.


1. Check the seal between the end plate and the silencer fordamage or dirt. Replace the seal if it is damaged.

2. Replace the large surface−mounted silencer.

3. Make sure that the seal is seated correctly. It must lie inthe recess in the end plate.

4. Place the new silencer on the end plate.

5. Fasten the flat plate silencer only with the original screws.Tighten the screws in diagonally opposite sequence asfollows:

� CPA10: 0.7 Nm (±0.1 Nm)

� CPA14: 0.8 Nm (±0.1 Nm)



5.4.3 Replacing the end plate, sub−base or interlinking block

NoteRemoval of the CPA valve terminal from the CPX terminal isdescribed in appendix A.


1. Loosen the electrical and pneumatic connections andremove the CPA valve terminal from its mounting surface(see this chapter, �Dismantling the CPA valve terminal").

2. Place the CPA valve terminal on a flat working surface.

3. Replacing a sub−base: Remove the cartridge from the sub−base beingexchanged. Unlock this by removing the clamping springwith a screwdriver. Pull the cartridge out of the sub−base(see diagram). If necessary, use a screwdriver to do this.

1 Cartridge

2 Clamping spring

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Fig.�5/2: Dismantling the cartridge



4. Loosen the fastening screws of all components on allsub−bases approx. 2 turns. You will then avoid stressingthe CPA valve terminal when the tie rods are loosened(see diagram).

1 CPA valve terminalwith MP, CP,AS−Interfaceconnection orCPX terminal

2 CPA valve terminalwith IC connection 1 2

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Fig.�5/3: Loosening components on sub−bases

5. Replacing a sub−base or an interlinking block:

CautionIf the tie rods are loosened when the valve plates havebeen loosened but not removed, electrical contacts in thevalve plates can be damaged. Faultless functioning of theCPA valve terminal can then no longer be guaranteed.

· Before loosening the tie rods, note which valve is fittedon which connector plate. Then remove all the valve pla�tes.



Remove the component on the sub−base to be replaced(see this chapter, �Replacing a sub−base, blanking plateor additional supply plate").

6. Depending on the component to be replaced, loosenthe tie rod screws in the left or right−hand end plates(see�diagram).

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Fig.�5/4: Loosening the tie rod screws

7. Remove the appropriate end plate from the tie rods.

8. Replacing an end plate: Loosen the four fastening screws of the electricalsub−base or cover block and remove it from the relevantend plate (see diagram).



1 Fastening screwsof the electricsub−base

2 Fastening screwsof the cover block

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Fig.�5/5: Removing the sub−base or cover block

9. Replacing a sub−base or an interlinking block:Use the appropriate sub−bases of the tie rod (see�Fig.�5/6).Release and carefully remove the interlinking block fromthe sub−base (see Fig.�5/7). Remove the seals from thesub−base or interlinking block to be replaced.

1 Sub−base to bereplaced

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Fig.�5/6: Removing sub−bases



1 Unlocking theinterlinking block

2 Removing theinterlinking blockfrom thesub−base

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Fig.�5/7: Removing the interlinking block


Fitting the sub−base and the interlinking block

1. Push the interlinking block onto the guide rail of the newsub−base until it clips in.

2. Make sure the seals are not damaged. Replace the seals ifthey are damaged. Place the seals in the appropriategrooves of the sub−base and the interlinking block.

3. Fitting the connector plates:

CautionConnector plates and components are connected bymeans of small threaded plates. The small threaded platescan tilt if no components are fitted on the dismantled con�nector plates. The tilted threaded plates can damage theconnector plates when the tie rods are tightened.

· Before pushing the connector plates onto the tie rods,check the position of the threaded plates. They must liecorrectly in the grooves of the connector plates.

Push the sub−bases onto the tie rod.



Fitting the end plate

4. CPA valve terminal with MP, CP, AS−Interface connection orCPX terminal: When you have replaced the end plate, screwthe electrical sub−base or cover block onto the new endplate. Make sure that the electrical sub−base or cover blocklies flush with the appropriate end plate (seeFig.�5/8). Tighten the screws as follows (position see Fig.�5/5):

� CPA10: 0.7 Nm (±0.1 Nm)

� CPA14: 0.8 Nm (±0.1 Nm)

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Fig.�5/8: Fitting the electrical sub−base

5. Place the end plate on the tie rods and screw the tie rodscrews a few turns into the tie rods.

6. Align the CPV valve terminal on a flat surface so that thecomponents are not offset.

7. Tighten the screws of the tie rods in two stages as follows:



Stage CPA10 CPA14

1 0.5 Nm 0.5 Nm

2 1.5 Nm 2 Nm

Tab.�5/2: Tightening torques of the tie rods

8. On sub−bases with components removed: Make sure thatthe seals are correctly seated on the sub−base. They mustlie correctly in the appropriate seal grooves.

9. Place the removed components onto the appropriatesub−bases again and tighten them slightly.

10. Tighten the fastening screws of all the components on thesub−bases as follows:

� CPA10: 0.25 Nm (+0.05 Nm)

� CPA14: 0.3 Nm (±0.05 Nm)

11. If necessary, insert missing cartridges into the sub−bases(see chapter 3.4.4).

12. Fit the CPA valve terminals onto the mounting surface(see�chapter 2 Mounting, �Wall mounting" or�H−rail�mounting").

13. Then fit the pneumatic and electrical connections(see�sections 3.4.4 and 3.4.5).



5.5 Conversion work on the CPA valve terminal

The following conversion work can be undertaken on the CPAvalve terminal:

� Conversion to detenting or non−detenting manual overrideon CPA valve terminals with MP, CP, AS−Interfaceconnection or CPX terminal

� Conversion of the valve terminal to internal or externalpilot air supply

� Conversion of the CPA valve terminal to different pressurezones

� Conversion of valve positions for actuating one or twovalve solenoid coils

5.5.1 Conversion from non−detenting to detenting/non−detentingmanual�override

CPA valve terminals with MP, CP or AS−Interface connectioncan be converted from non−detenting to non−detenting/detenting manual override if the safety clip is removed.

The manual override actuations on CPA valve terminals withIC connection can be operated either in non−detenting ordetenting mode. Conversion is not necessary.

Proceed as follows:

If you wish to re−use the safety clip:

· Use a thin object (e.g. a spatula) �to lift the safety clip outof the fixture (Fig.�5/9, 1�).

If you do not wish to re−use the safety clip:

· Use a screwdriver to press in the centre on the safety clip(Fig.�5/9, 2�). The safety clip will then bend and snap outof the support.



1 2

1 Removing the safety clip by lifting it out (clip can be re−used)

2 Remove the safety clip by pressing it out

Fig.�5/9: Converting the manual override

5.5.2 Conversion to internal or external pilot air supply

Pilot control of the valve solenoid coils can be undertakenwith internal or external pilot air, depending on the right endplate. You can ascertain the pilot control variant for whichyour CPA valve terminal is equipped by the type designationon the right end plate (see table).

CPA valve terminal Right end plate type

with external pilot air supply CPA�...−EPR−S

with internal pilot air supply CPA�...−EPR

Tab.�5/3: End plates for internal or external pilot air supply



NoteMixed operation of the CPA valve terminal with internal andexternal pilot air supply is not intended. The sub−base forpressure zone separation does not separate the pilot airsupply channel.

The right end plates available are listed in the following table.Check whether the right end plate with which your CPA valveterminal is equipped is intended for internal or external pilotair supply.

The following end plates are available for pilot control of theCPA sub−bases:

Right end plate Type Description

Operation with internal pilot air CPA�...−EPR � Port (12/14) in right end plate is notidentified and sealed with a blanking plug.

� The pilot air supply is branched internallyfrom port (1).

� Pressure zone separation is permitted.� Unused ports must be sealed.

Operation with external pilot air CPA�...−EPR−S � Port (12/14) in right−hand end plate forconnecting the pilot air supply is identified.

� Pressure zone separation is permitted.� Unused ports must be sealed.

Tab.�5/4: Right end plate

The method of fitting the relevant end plate into your CPAvalve terminal is described in this chapter under �End plate,replacing the sub−base or interlinking block".



5.5.3 Converting the CPA valve terminal to different pressure zones

For conversion you will require:

Components Type

To convert the CPV valve terminal to two pressure zones:� one sub−base with pressure zone separation CPA�...−AW−ZP

For each further pressure zone you will also require:� one sub−base with pressure zone separation� one additional supply plate

CPA�...−AW−ZPCPA�...−DP−U

Tab.�5/5: Separator plates

In the case of CPA valve terminals with MP, CP, AS−Interfaceconnection or CPX terminal, we recommend you to carry outconversion from the right−hand side. The tie rod screws onthe right−hand end plate are more easily accessible.

The method of replacing the sub−bases and of fitting theadditional supply plate is described in this chapter under�Replacing the end plate, sub−base or interlinking block" or�Replacing valve sub−bases, blanking plates or additionalsupply plates".



The following diagram shows the layout of pressure zonesusing as an example a CPA valve terminal.

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1 Connection (1) on the left end plate for supplying compressed air to the1st�pressure zone

2 Valve sub−bases of the 1st pressure zone

3 Sub−base with pressure zone separation

4 Valve sub−bases of the 2nd. pressure zone

5 Sub−base with pressure zone separation and fitted additional supply plateCompressed air supply for the 2nd pressure zone via connection �(2) on thesub−base

6 Connection (1) on the right end plate for supplying compressed air to the3rd�pressure zone

7 Valve sub−bases of the 3rd. pressure zone

Fig.�5/10: Example of a CPA valve terminal with two pressure zones



5.5.4 Conversion of valve position for actuating one or two solenoid coils

The interlinking block defines which valves (with one or twosolenoid coils) can be fitted onto a valve position.

In order that a valve position can support either one or twosolenoid coils, you must replace the interlinking block on therelevant sub−base.

For conversion you will require:

Components Type

Interlinking block for actuating one solenoid coilor Interlinking block for actuating two solenoid coils

CPA�...−EV1

CPA�...−EV2

Tab.�5/6: Interlinking block

You can ascertain which interlinking blocks are fitted on yourCPA valve terminal by means of the identification marking onthe interlinking block (see diagram).

1 EV1: Interlinking blockfor actuating onesolenoid coil EV2: Interlinking blockfor actuating twosolenoid coils

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Fig.�5/11: Marking the interlinking blocks



CautionIf the valve positions are converted for actuating one ortwo solenoid coils, the �address assignments will bemodified. This can lead to undesired movement of theactuators.

· Check the address assignment in your PLC controlprogram and, if necessary, update the addressassignment.

Please note:

� Interlinking block CPA�...−EV1 occupies 1 address.

� Interlinking block CPA�...−EV2 occupies 2 addresses

The method of replacing a interlinking block is described inthis chapter under �Replacing an end plate, sub−base orinterlinking block".



5.6 Adding/removing valve positions

The number of valve positions on the CPA valve terminal caneasily be expanded or reduced.

The diagram below shows as an example the extension of aCPA valve terminal with 6 valve positions to 8 or 9 valvepositions.

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1 Basis tie rods for 6 valve positions

2 Tie rod extension for 2 valve positions

3 7th and 8th new valve position

4 9th new valve position

5 Short tie rod screw (extending this CPAvalve terminal to 8 valve positions)

6 Long tie rod screw for (extending thisCPA valve terminal to 9 valve positions)

Fig.�5/12: Extending the CPA valve terminal



A valve position consists of a sub−base and an interlinkingblock. The number of valve positions determines the length ofthe tie rods and the tie rod screws.

Components for adding valve positions

You will need:

Components Type

Connecting plate or Sub−base with pressure zone separation

CPA�...−AW

CPA�...−AW−ZP

Interlinking block (for actuating one solenoid coil)orInterlinking block (for actuating two solenoid coils)

CPA�...−EV1

CPA�...−EV2

Basis tie rod �(gradation: 2, 4, 6 to 22)

CPA�...−ZA−2 ��. ��.CPA�...−ZA−22

Tie rod extension, if necessary (for two additional valve positions) CPA�...−ZA−2Z

Short tie rod screw if necessary (for valve terminals with an even number of valve positions)

CPA�...−ZA−SK

Long tie rod screw if necessary (for valve terminals with an odd numberof valve positions)

CPA�...−ZA−SL

Tab.�5/7: Tie rod extension



The table below lists the tie rod components which you willrequire for adding valve positions.

Number *) Starting basis: Valve terminals withan even number of valve positions

Starting basis: Valve terminals withan odd number of valve positions

+ 1 2�long�tie rod screws 2�tie rod extensions and2�short�tie rod screws

+ 2 2�tie rod extensions 2�tie rod extensions

+ 3 2�tie rod extensions and2�long�tie rod screws

2�basis tie rods and2�short�tie rod screws

> + 3 2�basis tie rods if necessary2�long�tie rod screws

2�basis tie rods if necessary 2�short�tie rod screws

*) Number of valve positions to be added

Tab.�5/8: Tie rod reduction

Components for removing valve positions

When valve positions are removed, the tie rods must beadapted to suit.

You will require:

Components Type

Basis tie rod �(gradation: 2, 4, 6 to 22)

CPA�...−ZA−2 ��. ��.CPA�...−ZA−22

Short tie rod screw if necessary (for valve terminals with an even number of valve positions)

CPA�...−ZA−SK

Long tie rod screw if necessary (for valve terminals with an odd numberof valve positions)

CPA�...−ZA−SL

Tab.�5/9: Tie rods and tie rod screws



The table below lists the tie rod components which you willrequire for adapting the tie rod length.

Number *) Starting basis: Valve terminals withan even number of valve positions

Starting basis: Valve terminals withan odd number of valve positions

− 1 2�basis tie rods and 2�long�tie rod screws

2�short�tie rod screws

− 2 2�basis tie rods 2 basis tie rods

− 3 2�basis tie rods and 2�long�tie rod screws

2�basis tie rods 2�short�tie rod screws

> − 3 2�basis tie rods if necessary 2�long�tie rod screws

2�basis tie rods if necessary 2�short�tie rod screws

*) Number of valve positions to be removed

Tab.�5/10: Adapting the tie rod length


1. Loosen the CPA valve terminal from its mounting surface(see this chapter, �Dismantling the CPA valve terminal").

2. Valves remove

CautionSub−bases and components are connected by means ofsmall threaded plates. The small threaded plates can tilt ifno components are fitted on the dismantled sub−bases.The tilted threaded plates can damage the sub−bases whenthe tie rods are tightened.

· Before pushing the sub−bases onto the tie rods, checkthe position of the threaded plates. They must lie cor�rectly in the grooves in the sub−bases.



Unclamp the CPA valve terminal. Loosen the fasteningscrews of all components on the valve positions approx.2�turns. �Remove all the components from the valve posi�tions which you wish to remove (see this chapter, �Re�placing sub−bases, blanking plates or additional supplyplates").

3. Remove the appropriate end plate and pull the valvepositions from the tie rods. Remove the appropriate valvepositions (see this chapter, �Replacing an end plate,sub−base or interlinking block").

4. Adapt the tie rods to the new number of valve positions(see tables for the tie rod components and Fig.�5/11).


NoteWhen extending the CPA valve terminal with tie rodextension, make sure that the terminal is flush with thebasis tie rod.

Use the tie rod extension only for two additional valvepositions. Further tie rod extensions are not permitted. In this case use correspondingly longer basis tie rods.

1. If you wish to add valve positions, mount the appropriateinterlinking block (EV1 or EV2) on the sub−base. Finally, fitall the valve positions and the end plate (see this chapter,�Replacing an end plate, sub−base or interlinking block").

2. Fit the appropriate components in the empty valvepositions (see this chapter, �Replacing sub−bases,blanking plates or additional supply plates").

3. Fit the CPA valve terminal onto the mounting surface(see�chapter 2 �Mounting, �Wall mounting" or�H−rail�mounting").

Technical appendix

A−1Festo P.BE−CPA−EN en 0903e

Appendix A

A. Technical appendix

A−2 Festo P.BE−CPA−EN en 0903e

Contents

A. Technical appendix A−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.1 Technical specifications A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.2 Festo accessories A−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



A.1 Technical specifications

General information Type CPA10/14

Permitted temperature range� Storage� Operation� Medium

−20 ... +40 °C−5 ... +50 °C−5 ... +50 °C

Protection class as per EN 60529 IP65 (fully assembled, with appropriate cable from Festoaccessories)

Relative air humidity 90 %

Corrosion protection against industrial climate (as per FN940070)

Mounting position as desired

Torques� Fastening on a stand� H−rail clamping unit� Locking screw for IC connection

� Components on valve positions

� Components on the end plates

� Tie rod

� Fastening the CPA valve terminalon the CPX terminal

0.8 Nm1.3 Nm0.2 Nm

CPA10: 0.25 Nm (+0.05 Nm)CPA14: 0.3 Nm (±0.05 Nm)

CPA10: 0.7 Nm (±0.1 Nm)CPA14: 0.8 Nm (±0.1 Nm)

1st Gradation: 0.5 Nm (CPA10/CPA14)2nd Gradation: 1.5 Nm (CPA10) or 2.0 Nm (CPA14)

2.0 Nm (±0.4 Nm)

Material� Plates, covers� Valve sub−base� Seal

�PPS, PA6T/X−GF40AL−DG, PPS, ST, ALNBR

Vibratiosn and shock 1)

� Vibration 2)

� Shock 2)

� Continuous shock

tested as per DIN/IEC68/EN 60068 part 2−6, severity level 2tested as per DIN/IEC68/EN 60068 part 2−27, severity level 2tested as per DIN/IEC68/EN 60068 part 2−29, severity level 1

1) See following table for explanations of the severity levels.2) Specifications on vibration and shock of the CPA valve terminal with CPX terminal can be found in

the system manual for the CPX terminal.

Tab.�A/1: Technical data: General information



Sever.level

Vibration Shock Continuous shock

1 0.15 mm travel at 10 ... 58 Hz2 g acceleration at 58 ... 150 Hz

±15 g at 11 ms duration5 shocks per direction

±15 g at 6�ms duration1000 shocks per direction

2 0,35 mm travel at 10 ... 60 Hz5 g acceleration at 60 ... 150 Hz

±30 g at 11 ms duration5 shocks per direction

−−−−−

Tab.�A/2: Values for vibration and shock as per DIN/IEC 68

General information Connection options

Approx. weights (in g�) MP, CP, AS−Interfaceconnection or CPX terminal

IC connection

CPA10 pneumatics� Basic weight� Per valve position

CPA14 pneumatics� Basic weight� Per valve position

CPX terminal� Pneumatic interface� Per complete CPX module� Left−hand end plate (CPX terminal)

AS−Interface with inputs� AS−Interface module

approx. 280 gapprox. 120 g


approx. 320 gapprox. 210 gapprox. 80 g

approx. 240 g



Tab.�A/3: Technical data: Weight of the CPA valve terminal

NoteThe valves can be used at temperatures down to −5 °C. In order to prevent the condensate and the humidity fromfreezing, we recommend that you fit a dryer with whichcondensate and humidity can be removed.



Caution� If possible, operate the CPA valve terminal withnon−lubricated pilot air (connections 12/14). Otherwiseobserve the instructions in the section �Preparing thecompressed air".

� With CPA valve terminals with internally branched pilotair supply, the above mentioned instruction also appliesto the supply air (port (1)).

Pneumatic components Type CPA10/14

Medium Compressed air, filtered (. 40 m), lubricated (oil: VG 32) ornon−lubricated/vacuum

Design Valve sub−bases with piston spool valves

Pressure range� Pilot control with internal

pilot air supply (pilot airsupply branched from supplychannel 1)

� Pilot control with externalpilot air supply (pilot airsupply fed via port (12/14))

Valve sub−base Ident. code J: 1; 12/14: 2 ... 8 barValve sub−bases Ident. code M, N, K, H, B, E, G: 1; 12/14: 3 ... 8 bar

Valve sub−bases Ident. code B, E, G, J, M: 1: −0.9 ... 10 bar

12/14: 3 ... 8 bar

Valve sub−bases Ident. code N, K, H: 1: 3 ... 10 bar12/14: see graphs

Manual override Detenting or non−detenting

Tab.�A/4: Technical data: Medium and pressure ranges



1 Control pressure12/14 (bar)

2 Work pressure P1(bar)

3 Switch−on pilotpressure

1

2

3

Fig.�A/1: Diagram for external pilot air supply of valve sub−bases CPA10 Ident. code N, K, H

1 Control pressure12/14 (bar)

2 Work pressure P1(bar)

3 Switch−on pilotpressure

1

2

3

Fig.�A/2: Diagram for external pilot air supply of valve sub−bases CPA14 Ident. code N, K, H



NoteThe fittings of the pneumatic ports cause a reduction in thenominal flow rate of the valves.


Ident. codeof the valvesub−base

Valve Rated flows [I/min] �(always without screw connector) values of the mid−position in brackets

Micro valves (CPA10)

MJN, K, HBGE

5/2−way valve (single−solenoid)5/2−way valve (double solenoid)all 3/2−way valves5/3−way valve, pressurized5/3−way, normally closed5/3−way valve, exhausted

1 ⇒ 2 or 1 ⇒ 4280280220

220 (130)330

200

2 ⇒ 3/5 or 4 ⇒ 3/5280280220220330

200 (130)

Mini valves (CPA14)

MJN, K, HBGE


1 ⇒ 2 or 1 ⇒ 4600

600550

550 (400)550

550

2 ⇒ 3/5 or 4 ⇒ 3/5600

600550

600550

550 (400)

Tab.�A/5: Technical data: Nominal flow rates




Ident. codeof the valvesub−base

Valve Valve response times in [ms](measuring method 0 ... 10 %) (as per FN 942032)

Micro valves (CPA10)

MJN, K, HBGE


On: 11Switch over: �7

On: �8On: 13On: 13On: 13

Off: 18

Off: 18Off: 17Off: 17Off: 20

Mini valves (CPA14)

MJN, K, HBGE


On: 17Switch over: 10

On: �9On: 13On: 13On: 13

Off: 29

Off: 28Off: 39Off: 30Off: 39

Tab.�A/6: Technical data: Valve response times



Electric CPA valve terminal with IC, MP or CP connection

Electromagnetic compatibility (EMC)CPA valve terminal with CP connection� Interference emission� Immunity to interference 2)

tested as per EN 61000−6−4 (industry) 1)

tested as per EN 61000−6−2 (industry)

Protection against electric shock (protection against direct and indirect contact as perEN�60204−1/IEC 204)

by connection to a PELV power unit(Protected Extra−Low Voltage)

Operating voltage� Operating voltage range� Residual ripple

DC 24 V20.4 ... 26.4 V4 Vss

Current consumption per solenoid coilRated current in high current phase (I20 as per VDE 0580)Rated current in holding current phase

CPA valve terminal with MP connection:� Min. drop−out time� Min. edge steepness

approx. 35 mA

approx. 15 mA

2 ms0.3 V/ms

Power consumption max. 1 W

Input current consumption of electronics� CPA valve terminal with CP connection 20 mA

1) The CPA valve terminal is intended for industrial use.2) The maximum signal cable length with CPA valve terminals with MP connection is 10 m

Tab.�A/7: Technical data: Electrics

Data on the electric components of the CPA valve terminalwith MP or AS−Interface connection are enclosed with theproduct. Further data on the electrical components of the CPA valveterminal with CP connection can be found in the manual forthe relevant CP fieldbus node.



A.2 Festo accessories

NoteYou can find product accessories under:

http://www.festo.com/catalog

Supplementary summary of components andfitting�instructions

B−1Festo P.BE−CPA−EN en 0903e

Appendix B

B. Supplementary summary of components and fitting�instructions

B−2 Festo P.BE−CPA−EN en 0903e

Contents

B. Supplementary summary of components and fitting�instructions B−1 . . . . . . .

B.1 Overview of valve sub−bases B−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B.2 Disconnecting electronic components from the CPA valve terminal B−6 . . . . . . .



B.1 Overview of valve sub−bases

NoteThe numbers on the following circuit symbols are thedesignations of the connections, coils and manualoverrides. Designation 14 stands therefore for manualoverride 14 or coil 14. They are not logic designations.

Valve sub−bases

82/84

12/14 5 31

4 2

1214

Ident. code KFunction:� two 3/2−way valves� single solenoid� normally closed� pneumatic spring return

82/84

12/14 5 31

4 2

1214

Ident. code NFunction:� two 3/2−way valves� single solenoid� normally open� pneumatic spring return

82/84

12/14 5 31

4 2

1214

Ident. code HFunction:� two 3/2−way valves� single solenoid� control side 14 normally closed� control side 12 normally open� pneumatic spring return

Tab.�B/1: Valve sub−bases with 3/2−way valves



Valve sub−bases

82/84

12/14 5 31

4 2

14

Ident. code MFunction:� 5/2−way valve� single solenoid� pneumatic spring return

NoteNumber of assigned outputs:valve position with interlinking block EV1: 1 outputvalve position with interlinking block EV2: 2 outputs

82/84

12/14 5 31

4 2

1214

Ident. code JFunction:� 5/2−way valve, double solenoid




Valve sub−bases

82/84

12/14 5 31

4 2

1214

Ident. code BFunction:� 5/3−way valve� pressurized in mid−position

82/84

12/14 5 31

4 2

1214

Ident. code GFunction:� 5/3−way valve� closed in mid−position

82/84

12/14 5 31

4 2

1214

Ident. code EFunction:� 5/3−way valve� mid−position exhausted




B.2 Disconnecting electronic components from the CPA valve terminal

The CPA terminal and also the AS−Interface module (withinputs) are connected to the CPA valve terminal with apneumatic adapter. The separation of the CPX terminal fromthe CPA valve terminal is described below. The AS−Interfacemodule is separated in the same way.

ÎÎÎÎÎÎ

ÎÎÎ



ÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

1

23

4

5

6

1 CPA valve terminal with cover block for CPX

2 Pneumatic adapters

3 Pneumatic interface

4 Electrical bridges (plug connectors)

5 Locating pins

6 M4 x 35 screws (CPA10), M4 x 40 (CPA14)

Fig.�B/1: Pneumatic interface and pneumatic adapter




1. Loosen the electrical and pneumatic connections andremove the CPA valve terminal from its mounting surface(see this chapter, �Dismantling the CPA valve terminal").

2. Remove the dowel pins with a punch (see diagram).


ÎÎÎÎ

ÎÎÎÎÎÎ

Fig.�B/2: Dismantling the CPA valve terminal from theCPX�terminal



3. Loosen and remove the fastening screws.


ÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ



4. Pull the CPA valve terminal carefully upwards from theCPX terminal without tilting.

ÎÎÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎ




Further information on replacing the CPA pneumatic interfacecan be found in the CPX system manual.

5. Check the pneumatic adapter on the left−hand end plateof the CPA valve terminal for damage. If necessary replacethe pneumatic adapter. Dismantling is described in thesection �Replacing the end plate, sub−base or interlinkingblock".


1. Insert the electrical bridge in the contact strip of the CPXterminal (this work step is not necessary for the CPA valveterminal with AS−Interface module).

Fig.�B/5: Fitting the electrical bridge

2. Push the CPA valve terminal together with the CPXterminal. Make sure that the electrical bridge iscorrectlyseated in the contact strips.



ÎÎÎÎÎÎÎ

ÎÎ

ÎÎÎÎÎÎ

ÎÎÎÎÎÎ

Fig.�B/6: Fitting the CPA valve terminal onto theCPX�terminal

3. Press and hold the CPA valve terminal against theCPX�terminal.

4. Place the dowel pins over the holes of the pneumaticadapter. Drive the dowel pins in as far as possible usinga�punch.



ÎÎÎÎÎÎÎÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎÎÎ


Fig.�B/7: Fitting the dowel pins

5. Insert the fastening screws in the appropriate holes andtighten them with 2.0 Nm.

6. Fasten the CPX terminal onto its mounting surface(see�CPX system manual).

7. Carry out the electrical and pneumatic connections of theCPX terminal. Information on this can be found,

� electrics can be found in the CPX system manual.

� pneumatics can be found in chapter 3 of this manual.

Information on connecting the CPA valve terminal withAS−Interface and inputs can be found in the documentationfor the product.

Index

C−1Festo P.BE−CPA−EN en 0903e

Appendix C

C. Index

C−2 Festo P.BE−CPA−EN en 0903e

Contents

C. Index C−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


Contents

A

Abbreviations, product−specific XV . . . . . . . . . . . . . . . . . . . .

Accessory A−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Address assignment, Outputs 3−26 . . . . . . . . . . . . . . . . . . . . .

C

Cartridge 3−20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compressed air, requirements 3−4 . . . . . . . . . . . . . . . . . . . . .

Connection sizes of the pneumatic fittings, Cartridge 3−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections, electricalCPA valve terminal with AS−Interface connection 1−15 , 1−16 . . . . . . . . . . . . . . . .

CPA valve terminal with CP connection 1−14 . . . . . . . . . . . . CPA valve terminal with CPX terminal 1−17 . . . . . . . . . . . . . CPA valve terminal with IC connection 1−12 . . . . . . . . . . . . CPA valve terminal with MP connection 1−13 . . . . . . . . . . .

Connections, pneumatic 1−11 . . . . . . . . . . . . . . . . . . . . . . . . .

Control elements, Pneumatic 1−11 . . . . . . . . . . . . . . . . . . . . .

Conversion of valve positionFor actuating one solenoid coil 5−23 . . . . . . . . . . . . . . . . . . For actuating two solenoid coils 5−23 . . . . . . . . . . . . . . . . .

CP connection 1−14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


CPA valve terminalAddress assignment of the outputs 3−26 . . . . . . . . . . . . . . Components 1−7 , 1−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disconnecting the AS−Interface module B−6 . . . . . . . . . . . . Earthing the terminal 3−25 . . . . . . . . . . . . . . . . . . . . . . . . . . Loosen the CPX terminal B−6 . . . . . . . . . . . . . . . . . . . . . . . . Overview of variants 1−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sizes 1−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valve sub−bases XII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CPA valve terminal with IC connection, Connecting solenoid coils 3−23 . . . . . . . . . . . . . . . . . . . . . .

Current consumption A−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D

Display elementsCPA valve terminal with AS−Interface connection 1−15 , 1−16CPA valve terminal with CP connection 1−14 . . . . . . . . . . . . CPA valve terminal with CPX terminal 1−17 . . . . . . . . . . . . . CPA valve terminal with IC connection 1−12 . . . . . . . . . . . . CPA valve terminal with MP connection 1−13 . . . . . . . . . . .

E

EMERGENCY−STOP 4−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

F

Flat plate silencerCleaning 5−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exchange 5−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H

H−railClamping unit 2−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fitting 2−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


I

Identification code 1−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Impairment of function 4−17 . . . . . . . . . . . . . . . . . . . . . . . . . .

Important user instructions XIII . . . . . . . . . . . . . . . . . . . . . . . .

Intended use VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

L

Low−pressure operation 4−18 . . . . . . . . . . . . . . . . . . . . . . . . . .

M

Manual overrideConversion 5−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Detenting 4−13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non−detenting 4−12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Versions 4−6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Manual override facility 1−11 . . . . . . . . . . . . . . . . . . . . . . . . . .

Manuals on the CP system XI . . . . . . . . . . . . . . . . . . . . . . . . .

Manuals on the CPX terminal X . . . . . . . . . . . . . . . . . . . . . . . .

Micro valves 1−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mini valves 1−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting accessoriesFastening profile for fitting onto a wall 2−5 . . . . . . . . . . . . . H−rail 2−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting kit, H−rail 2−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting on a stand 2−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting rail 2−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting variantsH−rail mounting 2−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mounting on a stand 2−4 . . . . . . . . . . . . . . . . . . . . . . . . . . .

MP connection 1−13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


N

Nominal flow rates A−7 , A−8 . . . . . . . . . . . . . . . . . . . . . . . . . . .

Notes on the manual VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

Operating status 4−18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating voltage A−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview of variants 1−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P

Pictograms XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pilot air supplyBranched internally 3−11 . . . . . . . . . . . . . . . . . . . . . . . . . . . Conversion 5−19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supplied externally 3−12 . . . . . . . . . . . . . . . . . . . . . . . . . . .

Position of the LED 4−15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power consumption A−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure range A−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure zones 3−10 , 3−13 , 4−18 . . . . . . . . . . . . . . . . . . . . . . . Common pneumatic line 3−14 . . . . . . . . . . . . . . . . . . . . . . . Conversion 5−21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Protection class A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

R

Remove the additional supply plate 5−8 . . . . . . . . . . . . . . . . .

Removing the blanking plate 5−8 . . . . . . . . . . . . . . . . . . . . . . .

Replacing the end plate 5−11 . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


S

Service VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start−up pressurisation 4−6 . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply pressureExternal pilot air supply 3−12 . . . . . . . . . . . . . . . . . . . . . . . . Internal pilot air supply 3−11 . . . . . . . . . . . . . . . . . . . . . . . .

Switching status display 4−16 . . . . . . . . . . . . . . . . . . . . . . . . .

T

Target group VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Text markings XIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tie rod, adapt 5−28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tightening torques A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TubingDismantling 3−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fitting 3−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V

Vacuum operation 3−16 , 4−18 . . . . . . . . . . . . . . . . . . . . . . . . .

Valve positionsAdd 5−25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . valve positions 5−27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve positions, Gradation 1−5 . . . . . . . . . . . . . . . . . . . . . . . . .

Valve response times A−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve sub−bases XII , 1−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Identification code 1−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview B−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace 5−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Index


compact performance - festo · see leaflet with product ... −ifb−asi or cpa ... cp compact...

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