Festo CPX-AP-A User manual

CPX-AP-A
Automation system
Operating instruc-
tions
8161875
2022-07
[8161877]

Translation of the original instructions
IO-Link® is a registered trademark of its respective trademark holder in certain countries.

Festo — CPX-AP-A — 2022-07
3
Table of contents
1 About this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Applicable documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Product version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Product labelling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Specified standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Training of qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 UL/CSA certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1.1 System structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1.2 Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1.3 Product variants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.4 LED displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.5 Labelling elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 System communication and address assignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Mounting types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.1 H-rail mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.2 Support system mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1.3 Wall mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.1 Connecting elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2 Connecting electrical cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.1 Connection example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.2 Earthing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1 Checking assembly and connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.2 Configuring the settings at the interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.3 Testing function without higher-order controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.4 Commissioning in network with higher-order controller. . . . . . . . . . . . . . . . . . . . . . . . . . 28
9 Parameterisation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.1 Diagnostics options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.2 Diagnostics status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.3 Grouping and overview of the diagnostics messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.4 Load voltage monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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11 Modification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
11.1 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
11.2 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.3 Exchange of modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
11.4 Expansion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
12.1 Technical data, mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.2 Technical data, electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.3 Technical data for UL/CSA certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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Safety
5
1 About this document
1.1 Applicable documents
All available documents for the product è www.festo.com/sp.
1.2 Product version
This document refers to the following product version:
Product Version
CPX-AP-A Automation system CPX-AP-A from revision 1
Tab. 1: Product version
The product version can be determined from the product labelling.
There may be an updated version of this document for these or later product versions
è www.festo.com/sp.
1.3 Product labelling
The product labelling and the Data Matrix Code are printed on the housings of the modules. Scanning
the Data Matrix Code with an appropriate device opens the Festo Internet page with documents
appropriate for the product. Alternatively, the Product Key (11-digit alphanumeric code on the product
labelling) can be entered in the search field è www.festo.com/sp.
1.4 Specified standards
Version
IEC 60204-1:2016-10 EN 60068-2-27:2009-05
IEC 60364-4-41:2005-12 EN 60529:1991-10
EN 60068-2-6:2008-02 –
Tab. 2: Standards specified in the document
2Safety
2.1 Safety instructions
–Only use the product if it is in perfect technical condition.
–Observe the identifications on the product.
–Store the product in a dry environment protected from UV and corrosion. Keep storage times short.
–Before working on the product, switch off the power supply and secure it against being switched on
again.
2.2 Intended use
The product described in this document is intended exclusively for control tasks on machines and
automation systems.
Use the product only as follows:

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Additional information
–Use only in an industrial environment. Outside industrial environments, e.g. in commercial and
residential/mixed-use areas, it may be necessary to take measures to suppress radio interference.
–Use only in combination with modules and components that are approved for the applicable
product variant è www.festo.com/catalogue.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can evaluate the work
and detect dangers. The qualified personnel have skills and experience in dealing with electrical
(open-loop) control technology.
2.4 UL/CSA certification
In combination with the UL inspection mark on the product, the information in this section must also
be observed in order to comply with the certification conditions of Underwriters Laboratories Inc. (UL)
for USA and Canada.
UL/CSA certification information
Product category code CPX-AP-A
File number E239998
Considered standards UL 61010-1
UL 61010-2-201
CAN/CSA C22.2 No. 61010-1-12
CAN/CSA-IEC 61010-2-201
UL mark
UL control number E239998
Tab. 3: UL/CSA certification information
–Technical data and environmental conditions may be subject to change in order to comply with
Underwriters Laboratories Inc. (UL) certification requirements for the USA and Canada.
Deviating values è 12.3 Technical data for UL/CSA certification.
–The unit shall be supplied by a power source which fulfils the requirements on a limited-energy
circuit in accordance to IEC/EN/UL/CSA 61010-1 or on a Limited Power Source (LPS) in accordance
to IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance to NEC or
CEC.
3 Additional information
–Contact the regional Festo contact if you have technical problems è www.festo.com.
–Accessories and spare parts è www.festo.com/catalogue.

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Product overview
7
4 Product overview
4.1 Structure
4.1.1 System structure
1
4 5 6 7 8 11 12
4 9 10 13
3
8
2
Fig. 1: Example of system structure
1
Higher-order controller
2
Network
3
AP system communication
4
End plate with AP system communication
5
EtherCat interface
6
Digital input module with channel diagnos-
tics
7
Analogue input module
8
Digital input/output module
9
IO-Link master on system supply
10
Digital input module
11
VTSA interface with M12-L system supply
12
Valve terminal VTSA
13
MPA-S interface with valve terminal

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Product overview
4.1.2 Modules
2
1
Fig. 2: Modular design
1
Interlinking module
2
Electronics module
Electronics module
The housing top part of CPX-AP-A modules is called the electronic module. Electronic modules provide
the necessary connections for sensors, actuators or interfaces.
Interlinking module
The housing bottom part of CPX-AP-A modules is called the interlinking module. Interlinking modules
are used for the electrical and mechanical linkage of the modules. If required, they offer a connection
for the operating voltage supply, the load voltage and supply operating voltage and load voltage to the
adjacent modules. Interlinking modules are screwed together individually.

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Product overview
9
4.1.3 Product variants
Interface
Fig. 3: Interface, example CPX-AP-A-EC-M12
The interface between the automation system and the network performs the following functions:
–Data transfer between the automation system and the higher-order controller.
–Transmission of control signals to the connected modules.
–Monitoring the functionality of the connected modules.
–Access to system parameters (read/write), input/output signals and diagnostics data (depending
on the interface).
Input/output module
Fig. 4: Input/output module, example CPX-AP-A-16DI-D-M12-5P
The input/output modules include various module types:
–Digital input/output modules can be used, for example, to query sensor signals or to control
actuators.
–Analogue input modules acquire analogue input signals in an automation system.
–A IO-Link master in an automation system provides multiple IO-Link-Ports for the integration of
IO-Link-Devices.

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Product overview
Basic interlinking module
Fig. 5: Basic interlinking module, example CPX-AP-A-SB
The basic interlinking module is used for the electrical linkage of modules.
Key features
–Double or single interlinking module
Interlinking module with system supply
Fig. 6: Interlinking module with system supply, example CPX-AP-AS-1-M12
The operating voltage and load voltage are supplied via the interlinking modules with system supply.
The voltages are supplied via an M12 plug, M18 plug, 7/8" plug or push-pull plug and are available to
other electrical modules and valves.
The system supply can be positioned as required and the appropriate additional supplies must be
selected depending on the location.
Key features
–Operating voltage supply for the modules and sensors
–Load voltage for valves and outputs

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Product overview
11
Interlinking module with system supply and voltage forwarding supply
Fig. 7: Interlinking module with system supply and voltage forwarding supply, example CPX-AP-AS-2-
M12-5P
The operating voltage and load voltage are supplied via the interlinking modules with system supply.
The voltages are supplied via an M12 plug and are available to other electrical modules and valves.
In addition, the operating and load voltage in the module can be forwarded directly via an additional
M12 socket. If interlinking blocks with additional supply are not required, the installation location of
the interlinking block with system supply can be selected as required.
Interlinking modules with additional supply to left or right
Fig. 8: Interlinking modules with additional supply to left or right, example CPX-AP-A-M12-AL
Additional load voltage for outputs and valves is supplied via the interlinking modules with additional
supply. The load voltage of the output modules supplied from the modules can be switched sepa-
rately.

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Product overview
Key features
–Current consumption load voltage of the outputs
–Load voltage to right (CPX-AP-A-M12-AR) or to left (CPX-AP-A-M12-AL)
Connection Position next to the system supply
M12 right and left
M18 right
7/8" right
Push-pull right and left
Tab. 4: Placement of the additional supply
Interlinking module with forwarding supply
Fig. 9: Interlinking module with forwarding supply, example CPX-AP-AW-1-PP-5P
The operating and load voltage in the module can be forwarded via the interlinking modules with
forwarding supply via a 5-pin push-pull connection. The interlinking module with forwarding supply
must be installed immediately to the right or left of the system supply.

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Product overview
13
End plates
Fig. 10: End plate, example CPX-AP-A-EPL
Key features
–Right end plate (CPX-AP-A-EPR) for operation without valve terminal.
–Left end plate (CPX-AP-A-EPL) with connection for functional earth.
End plates EPLI, EPLI-S
Fig. 11: End plates, example EPLI-S
Key features
–Connection for functional earth.
–System communication to connect additional AP devices.
–Forwarding supply
–EPLI-S: power supply

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Product overview
4.1.4 LED displays
Depending on the module, the modules have various LED displays for visualising status and diagnos-
tics.
Detailed information on the LED displays of the individual modules è Product-specific documentation
4.1.5 Labelling elements
Fig. 12: Inscription label
The same clip-on inscription label is available for all modules. The inscription label is in two parts and
can be divided into two smaller units if necessary.
4.2 Function
The automation system is connected to a higher-level controller via an interface. The behaviour of
the automation system can be adapted to the various requirements by access to internal parameters.
Various diagnostics functions such as open load and channel diagnostics are also available.

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System communication and address assignment
15
5 System communication and address assignment
The internal system communication is at the level of the interlinking modules.
The addresses of the modules are assigned automatically every time the automation system is
started. In this example, the interface is given the address 1 or 4.
2
31
2
31
1 1
Fig. 13: System communication and addressing
1
Connection for system communication
[XF20]
2
Interface
3
Connection for system communication
[XF10]
Loss of function due to incorrectly connected or non-approved connecting cables.
–Always attach the connecting cables for the modules to the connection [XF10].
–Always attach the forwarding of the connecting cables to the connection [XF20].
–Only use approved connecting cables from the Festo catalogue è www.festo.com/catalogue.
Behaviour in the event of incorrect configuration after restart
When establishing a connection with the higher-order controller, the configuration is checked for the
following criteria, depending on the network protocol of the interface:
–Total number of input bytes and output bytes
–Module codes and sequence of modules
–Length and format of the start-up parameterisation
If there are deviations, the connection to the higher-order controller is rejected and a network-specific
error message is generated.
Behaviour when changing the configuration during operation
–If a module is removed during operation, process data are not transferred to the higher-order
controller for this module and all downstream modules. The failure of the module is signalled via a
diagnostics message and, if necessary, network-specific status bytes in the process data.
–If an additional module is added after the connection is established with the higher-order controller
or an existing module is replaced, this module is not included in the active configuration and data
exchange with this module is not possible.
The system must be restarted for changes to the configuration to become active.

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Assembly
6 Assembly
6.1 Mounting types
The following mounting types are available, depending on the version:
Mounting Wall Mounting system H-rail
CPX-AP-A modules Mounting bracket
CAFM-X5-A
Mounting bracket
CAFM-X5-K
Mounting
CAFM-X5-H
Tab. 5: Mounting types
Mounting conditions and dynamic load è Instructions, assembly for CPX-VTSA.
6.1.1 H-rail mounting
The mounting points of the automation system are restricted to the end plates. The interlinking
module and end plates are attached to the H-rail.
1
2
Fig. 14: H-rail mounting
1
Clamping piece
2
H-rail
1. Make sure the mounting surface supports the weight
2. Mount the H-rail and make sure there is enough free space for connections.
3. Mount H-rail every 100 mm on the mounting surface.
4. Mount the clamping piece on the right and left end plates.
5. Attach the automation system to the upper slot of the H-rail.
6. Swivel the automation system to the H-rail.

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Assembly
17
7. Tighten screws. Tightening torque: 1.3 Nm ± 10%.
ÄTightening the screws turns the clamping elements 90°. The automation system is secured
against tipping and slipping.
1
Fig. 15: Rear view: H-rail mounting
1
Clamping piece
6.1.2 Support system mounting
Mountings are pre-assembled depending on the configuration.
–A maximum of 6 CPX-AP-A modules between the end plates or between the end plate and pneu-
matic interface.

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Assembly
4
6
1
2
2
3
3
5
Fig. 16: Mounting system attachment point
1
End plate attachment point
2
Pneumatic interface attachment point
3
Valve terminal end plate attachment point
4
Mounting system
5
Mounting bracket CAFM-X5-K
6
Mounting bracket attachment point
6.1.3 Wall mounting
–Mount the device only on even, torsionally rigid surfaces.
–Make sure the mounting surface supports the weight.
–Make sure there is enough free space for the supply cables.
Number of mounting brackets
6
7
8
9
10
15
14
13
12
11
Fig. 17: Number of mounting brackets per expansion stage
Select the number and position of the mounting brackets so that there is a maximum of 3 single-width
modules side-by-side that are not also fastened with a mounting bracket.

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Assembly
19
Mounting point Screw size Number
End plate M5 or M6 2x
Mounting bracket M6 1x
Tab. 6: Screw size for the mounting points
Position of the mounting brackets for supply
1 2
1
3
Fig. 18: Mounting bracket for supply
1
Mounting bracket
2
Supply
3
Alternative position
If the position for the mounting bracket is occupied by a power feed, attach the mounting bracket to
the left of it. If this is not possible due to another power feed, attach the bracket to the right of it.
Attaching mounting bracket
Attach the mounting brackets to one module or between two modules depending on the number of
modules.

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Installation
12
Fig. 19: Attaching mounting bracket
1
Mounting bracket
2
Recess
1. Insert the clamps for the mounting brackets into the recesses.
2. Snap in the mounting bracket.
7 Installation
7.1 Connecting elements
Device-side connections of the interlinking modules.
Connecting elements 7/8"
System supply
Plug 7/8", 5-pin Signal
1 0 V DC load supply PL
2 0 V DC logic supply PS
3 Functional earth FE
4 +24 V DC logic supply PS
5 +24 V DC load supply PL
Tab. 7: System supply