
Installation and Operating instructions for
“Economy” Panel PC CP72xx
Version: 2.1
Date: 2019-10-09

Table of contents
Table of contents
1. Foreword 3
Notes on the Documentation 3
Liability Conditions 3
Trademarks 3
Patent Pending 3
Copyright 3
State at Delivery 3
Delivery conditions 3
Description of safety symbols 4
Basic safety measures 5
Operator’s obligation to exercise diligence 6
Operator requirements 6
2. Product Description 7
Appropriate Use 7
Structure 7
Access to memory and battery 8
Interfaces 10
Power supply 10
Network connection 10
Additional plug-in cards (optional) 10
3. Installation Instructions 11
Transport and Unpacking 11
Transport 11
Unpacking 11
Installation of the Panel PC 12
Mounting arm installation 12
Earthing measures 13
Power Supply Connection 14
Beckhoff power supply technology 14
Pin assignment of the power supply connector 15
Pre-assembled cable sets for the power supply 16
Fitting the power supply cable with IP65 connector 16
Connecting Power Supply 17
Cable Cross Sections 17
Configuration for shutting down the PC 17
PC_ON and Power Status functions 17
Wiring diagram CP72xx 18
Wiring diagram CP72x4 with 24-inch display (discontinued) 19
Connecting the Network 20
Pre-assembled network cables 20
Fitting the network cable with IP65 connector 20
USB-interface (optional) 21
Pre-assembled USB-cables 21
Fitting the USB-cable with IP65 connector 21
RS232-interface (optional) 22
Pre-assembled serial interface cables 22
Fitting the RS232-interface cable with IP65 connector 22
Connecting devices 23
Connecting cables 23
Check voltage rating and connect 23
4. Operating Instructions 24
Switching the Industrial PC on and off 24
First switching on and driver installation 24
Keyboard codes 25
Maintenance 27
Cleaning the Industrial PC 27
Servicing 27
Replacing the battery on the motherboard 27
CP72xx 1

Table of contents
Emergency procedures 27
Shutting down 27
Disposal 27
5. UPS Software Components (optional) 28
Installation on the PC 28
Help files 28
6. Troubleshooting 29
Fault correction 29
Beckhoff Support & Service 30
Beckhoff branches and partner companies 30
Beckhoff Headquarters 30
Beckhoff Support 30
Beckhoff Service 30
7. Appendix 31
Assembly dimensions 31
Dimensions and total weight 35
8. Appendix 36
Technical data 36
Approvals 36
FCC: Federal Communications Commission Radio Frequency Interference
Statement 36
FCC: Canadian Notice 36
2 CP72xx

Foreword
Notes on the Documentation
This description is only intended for the use of trained specialists in control
and automation engineering who are familiar with the applicable national
standards. It is essential that the following notes and explanations are
followed when installing and commissioning these components.
The responsible staff must ensure that the application or use of the
products described satisfy all the requirements for safety, including all the
relevant laws, regulations, guidelines and standards.
The documentation has been prepared with care. The products described
are, however, constantly under development. For that reason the
documentation is not in every case checked for consistency with
performance data, standards or other characteristics. In the event that it
contains technical or editorial errors, we retain the right to make alterations
at any time and without warning. No claims for the modification of products
that have already been supplied may be made on the basis of the data,
diagrams and descriptions in this documentation.
All pictures shown in the documentation are exemplary. Illustrated
configurations can differ from standard.
Beckhoff®, TwinCAT®, EtherCAT®, Safety over EtherCAT®, TwinSAFE®,
XFC® and XTS® are registered trademarks of and licensed by Beckhoff
Automation GmbH.
Other designations used in this publication may be trademarks whose use
by third parties for their own purposes could violate the rights of the
owners.
The EtherCAT Technology is covered, including but not limited to the
following patent applications and patents: EP1590927, EP1789857,
DE102004044764, DE102007017835 with corresponding applications or
registrations in various other countries.
The TwinCAT Technology is covered, including but not limited to the
following patent applications and patents: EP0851348, US6167425 with
corresponding applications or registrations in various other countries.
© Beckhoff Automation GmbH & Co. KG.
The reproduction, distribution and utilization of this document as well as the
communication of its contents to others without express authorization are
prohibited. Offenders will be held liable for the payment of damages. All
rights reserved in the event of the grant of a patent, utility model or design.
All the components are supplied in particular hardware and software
configurations appropriate for the application. Modifications to hardware or
software configurations other than those described in the documentation
are not permitted, and nullify the liability of Beckhoff Automation GmbH &
Co. KG.
In addition, the general delivery conditions of the company Beckhoff
Automation GmbH & Co. KG apply.
Foreword
CP72xx 3

Foreword
Description of safety symbols
The following safety symbols are used in this operating manual. They are
intended to alert the reader to the associated safety instructions.
If you do not adhere the safety advise adjoining this symbol, there is
immediate danger to life and health of individuals!
If you do not adhere the safety advise adjoining this symbol, there is
danger to life and health of individuals!
If you do not adhere the safety advise adjoining this symbol, there is
obvious hazard to individuals!
Hazard to devices and environment
If you do not adhere the notice adjoining this symbol, there is obvious
hazard to materials and environment.
This symbol indicates information that contributes to better understanding.
4 CP72xx

Foreword
Only switch the PC off after
closing the software
Before the Industrial PC is switched off, software that is running must
be properly closed.
Otherwise it is possible that data on the storage medium is lost. Please
read the section Switching the Industrial PC on and off.
Switch off all parts of the equipment, then uncouple the fieldbus
Before opening the housing of the PC, and whenever the PC is being
used for purposes other than plant control, such as during functional tests
following repair, all parts of the equipment must first be switched off, after
which the Industrial PC can be uncoupled from the plant.
Pulling out the fieldbus connection plug uncouples the PC (optional).
Items of equipment that have been switched off must be secured against
being switched on again.
The Industrial PC’s power supply unit must be supplied with 24VDC.
Do not open the power supply unit while voltage is applied!
The supply voltage must be switched off before the power supply unit
housing is opened.
Do not exchange any parts when under power
When components are being fitted or removed, the supply voltage must
be switched off.
Fitting work on the Industrial PC can result in damage:
• if metal objects such as screws or tools fall onto operating circuit
boards.
• if connecting cables internal to the PC are removed or inserted
during operation.
• if plug-in cards are removed or inserted when the PC is switched
on.
Displays used for the Control Panel’s LC-display are operated with a
voltage of up to 1000 V, depending on type. For that reason:
The supply voltage must be disconnected before the housing of the
Control Panel is opened.
CP72xx 5

Foreword
Operator’s obligation to exercise diligence
The operator must ensure that
• the Industrial PC is only used for its intended purpose (see chapter
Product Description).
• the Industrial PC is only operated in a sound condition and in
working order (see chapter Maintenance).
• the Industrial PC is operated, maintained and repaired only by
suitably qualified and authorized personnel.
• the personnel is instructed regularly about relevant occupational
safety and environmental protection aspects, and is familiar with
the operating manual and in particular the safety notes contained
herein.
• the instruction manual is in good condition and complete, and
always available for reference at the place of installation of the
Industrial PC.
• none of the safety and warning notes attached to the Industrial PC
are removed, and all notes remain legible.
• every user is familiar with all the functions of the software installed
on the Industrial PC to which he has access.
National regulations
depending on the machine
type
Depending on the type of machine and plant in which the Industrial PC is
used, national regulations governing the controllers of such machines will
apply, and must be observed by the operator. These regulations cover,
amongst other things, the intervals between inspections of the controller.
The operator must initiate such inspections in good time.
Only trained persons may open the Industrial PC housing
The operator is responsible for ensuring that only trained electrical staff
opens the housing of the Industrial PC.
Procedure in the event of a
fault
In the event of faults at the Industrial PC, the list in the section
Troubleshooting can be used to determine the measures to be taken.
Read the operating
instructions
Anyone who uses the Industrial PC must have read these operating
instructions.
Every user must be familiar with all the functions of the software installed
on the Industrial PC to which he has access.
6 CP72xx

Product Description
The CP72xx Panel PC with 3½” motherboard is designed for mounting
behind a Beckhoff Control Panel. Cooling is achieved via heat sink
structure between the Control Panel and the add-on PC. A fan inside the
closed housing ensures that the heat is distributed evenly.
The Industrial PC is designed for mounting arm installation.
Do not use the Panel PC in areas of explosive hazard!
The Panel PC must not be used where there is a risk of explosion.
In order to get access to the connectors, first unscrew the according M4cross-head screws (1) (see photo above). The plastic caps (2) can then be
taken off easily.
The picture shows the view to the connectors when the plastic caps are
removed.
Product Description
CP72xx 7

Product Description
Access to memory and battery
After unscrewing the two Allen screws (see arrows) the drive cover can be
taken off.
View to the hard-disk drive
(optional) and the memory
card
Removing the drive cover allows access to the IDE-hard-disk (1) (optional),
the Compact-Flash-memory card (2) and the lithium battery of the system
clock (3).
8 CP72xx

Product Description
Removing the hard-disk
drive and the memory card
The hard-disk drive and the memory card can now be pulled out. Here,
changing the lithium battery is also possible.
The installation takes place in reverse order.
Replace battery only with the identical type or an alternative type
recommended by the manufacturer. Notice correct polarity!
Handling of Lithium Batteries
Lithium Batteries should not be recharged, exposed to fire, opened and
they should be protected against sunlight and moisture.
CP72xx 9

Product Description
The power supply connection of the Industrial PC and the connection with
the UPS (optional) is established via the power supply socket (X101).
The Ethernet-interface with RJ-45-connector (X106) allows the PC to be
connected to a network (LAN). In the basic configuration a Gigabit-port is
available.
Additional plug-in cards (optional)
There are notes at the Industrial PC and in the connection area which
provide information about the hardware configuration of the Industrial PC at
the time it was supplied.
10 CP72xx