BECKHOFF C6920 User Manual

Installation and Operating instructions for

Control Cabinet PCs
C6920, C6925

Version: 2.2
Date: 2012-09-14

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
Access to the battery and drives 7
Status-LEDs 8
Fan cartridge C6920 8
Extension for PCI and PCIe plug-in cards 9

Access to the plug-in card slots 9

Interfaces 10

Power Supply 10
Network connection 10
USB-Interfaces 10
DVI (Digital Visual Interface) 10
Serial interface 10
Fieldbus 10
Additional plug-in cards (optional) 10

3.

Installation Instructions 11

Transport and Unpacking 11

Transport 11
Unpacking 11

Installation of the PC in the control cabinet 12

Earthing measures 12

Power Supply Connection 13

Beckhoff power supply technology 13
Pin assignment of the connector 14

Fitting the cable 15

Material for assembling the connectors 15
Assembling the connectors 15

Connecting Power Supply 16

Cable Cross Sections 16
Configuration for shutting down the PC 16
PC_ON and Power Status functions 16
UPS output 16
UPS output function 16
Wiring diagram 17

Connecting devices 18

Connecting cables 18
Check voltage rating and connect 18

4.

Operating Instructions 19

Switching the Industrial PC on and off 19

First switching on and driver installation 19

Servicing and Maintenance 20

Cleaning the Industrial PC 20
Servicing 20
Replacing the battery on the motherboard 20

Emergency procedures 20

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Table of contents

Shutting down 20

Disposal 20

5.

UPS Software Components (optional) 21

Installation on the PC 21
Help files 21

6.

Troubleshooting 22

Fault correction 22
Beckhoff Support and Service 23

Beckhoff branches and partner companies 23
Beckhoff company headquarters 23
Beckhoff Support 23
Beckhoff Service 23

7.

Assembly dimensions 24

Industrial-PC C6920 24
Industrial-PC C6920 25
Industrial-PC C6920 with plug-in card slots 26
Industrial-PC C6920 with plug-in card slots 27
Industrial-PC C6925 28
Industrial-PC C6925 29

8.

Appendix 30

Technical data 30
Approvals 30

FCC: Federal Communications Commission Radio Frequency Interference
Statement 30
FCC: Canadian Notice 30

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Foreword

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.

Liability Conditions

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.

Trademarks

Beckhoff®, TwinCAT®, EtherCAT®, Safety over EtherCAT®, TwinSAFE®

and XFC® 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.

Patent Pending

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.

Copyright

© Beckhoff Automation GmbH.

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.

State at Delivery

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.

Delivery conditions

In addition, the general delivery conditions of the company Beckhoff

Automation GmbH apply.

C6920/ 25 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.

Acute risk of injury!!

DANGER

WARNING

CAUTION

Attention

Note

If you do not adhere the safety advise adjoining this symbol, there is
immediate danger to life and health of individuals!

Risk of injury!

If you do not adhere the safety advise adjoining this symbol, there is
danger to life and health of individuals!

Hazard to 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.

Note or pointer

This symbol indicates information that contributes to better understanding.

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Foreword

Basic safety measures

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 hard disk is lost. Please read the
section on Switching the Industrial PC on and off.

Switch off all parts of the equipment, then uncouple the fieldbus

Attention

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 24 VDC.

Do not exchange any parts when under power

Attention

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.

C6920/ 25 5

Foreword

Operator’s obligation to exercise diligence

The operator must ensure that

• the Industrial PC is only used for its intended use (see also Product

Description chapter).

• the Industrial PC is in a sound condition and in working order
during operation (see also chapter Servicing and Maintenance).

• the operation manual is in good condition and complete, and
always available for reference at the location of the Industrial PC.

• the Industrial PC is operated, maintained and repaired only by
sufficiently 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.

• none of the safety and warning notes attached to the Industrial PC
are removed, and that all notes remain legible.

National regulations
depending on the machine
type

Depending on the type of machine and plant in which the Industrial PC is
being used, there will be national regulations for the control of such
machines and plant that the operator must observe. 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!

Attention

Procedure in the event of a
fault

The operator is responsible for ensuring that only trained electrical staff
opens the housing of the Industrial PC.

In the event of a fault in the Industrial PC, appropriate measures can be
determined with the aid of the list in the Fault correction section.

Operator requirements

Read the operating
instructions

Software knowledge Every user must be familiar with any of the functions of the software

Every user of the Industrial PC must have read these operating
instructions.

installed on the PC that he can reach.

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Product Description

Product Description

The C6920/ 25 series Industrial PCs are designed for mounting in control

Front view of Industrial PC
C6920/ 25

Appropriate Use

cabinets for machine and plant engineering applications.

C6920

C6925

Configuration

Access to hard-disk
(optional), CF-Card/
CFast-Card and the battery

The C6920 is fitted with a fan cartridge with observated double ball bearing
fans, exchangeable at the front.

The C6925 is a fanless Industrial PC with passive cooling.

Access to the battery and drives

1

2

3

4

C6920/ 25 7

Opening the front flap (1) allows access to the battery (2), the CF-Card/
CFast-Card (3) and the hard disk (4) (optional).

When provided with a CF-Card the ejection of the card occurs by pressing
the eject button below the card slot.

Product Description

Status-LEDs

Description of the Status­LEDs

The Status-LEDs (2) are
located near the power
supply connector (X101):

1 PWR (Power): green

2 TC (TwinCAT): red

3 IDE/ HDD: red Access to a memory

4 FAN: green

5 USR (User): Programmable

6 FB RUN (Fieldbus activ): green

7 FB Error (Fieldbus Error): red Error

Fan cartridge C6920

2

green blinking

green
blue

red

red

X101

Busy
Standby

Stop Mode
Run Mode
Configuration Mode

device

Fans running
Fan Error

Activ
Not activ

For optimal cooling the C6920 Industrial PC is equipped with a fan cartridge

with two fans. The fan cartridge can be exchanged.

Replace the fans only with the identical type or an alternative type approved
by Beckhoff.

View from the top

2

1

Exchanging the fan
cartridge

For exchanging the fan cartridge (1), first solve the knurled screw (2). The
cartridge can then be folded down and taken out.

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