Beckhoff C3620 User manual

Installation- and Operating instructions for
Build-in Industrial PCs
C3620, C3640 from -0060
Version: 4.0
Date: 2020-04-24

Table of contents
C3620, C3640 1
Table of contents
1. General instructions 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 of the C3620 7
Structure of the C3640 8
CD/DVD-Drive (optional) 8
Interfaces from C3620/ C3640-0060 9
PS/2 connections 9
USB interfaces 9
Network connection 9
DVI-D (Digital Visual Interface) 9
Serial interfaces 9
DisplayPort 9
Sound-On-Board 9
Additional plug-in cards (optional) 9
3. Installation Instructions 10
Transport and Unpacking 10
Transport 10
Unpacking 10
Installation of the PC in the control cabinet 11
Earthing measures 11
Power Supply Connection 12
Power Supply Configuration 12
Pin assignment and cable requirements 13
Fitting the Power Supply Cable 14
Connecting Power Supply 15
Wiring diagram 16
Connecting devices 17
Connecting cables 17
Check voltage rating and connect. 17
4. Operating Instructions 18
Switching the Industrial PC on and off 18
First switching on and driver installation 18
Maintenance 19
Cleaning the Industrial PC 19
Replacing the battery on the motherboard 19
Servicing 19
Shutting down 19
Disposal 19
5. Troubleshooting 20
Fault correction 20
Service and Support 21
Beckhoff's branch offices and representatives 21
Beckhoff headquarters 21

Table of contents
2C3620, C3640
Beckhoff Support 21
Beckhoff Service 21
6. Assembly dimensions 22
Industrial PC C3620 22
Industrial PC C3640 23
Mounting Opening 24
7. Appendix 25
Technical data 25
Approvals 25
FCC: Federal Communications Commission Radio Frequency Interference
Statement 25
FCC: Canadian Notice 25

General instructions
C3620, C3640 3
General instructions
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.
All pictures shown in the documentation are exemplary. Illustrated
configurations can differ from standard.
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 & 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.
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 & Co.KG.
Delivery conditions
In addition, the general delivery conditions of the company Beckhoff
Automation GmbH & Co.KG apply.

General instructions
4C3620, C3640
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.
Danger
This symbol is intended to highlight risks for the life or health of personnel.
Warning
This symbol is intended to highlight risks for equipment, materials or the
environment.
i
Note
This symbol indicates information that contributes to better understanding.

General instructions
C3620, C3640 5
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 Switching the Industrial PC on and off.
Warning
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.
Danger
Displays used for the PCs 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.
The Industrial PC’s power supply unit must be supplied with
100 VAC - 240 VAC or 24VDC (optional).
Danger
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.

General instructions
6C3620, C3640
Operator's obligation to exercise diligence
The operator must ensure that
•the Industrial PC is only used for its intended use (see also chapter
Product Description).
•the Industrial PC is in a sound condition and in working order
during operation.
•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.
Warning
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 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
Every user of the Industrial PC must have read these operating
instructions.
Software knowledge
Every user must be familiar with any of the functions of the software
installed on the PC that he can reach.

Product Description
C3620, C3640 7
Product Description
Appropriate Use
The C3620 and C3640 Industrial PCs are designed for mounting in control
cabinets in machine and plant engineering applications.
Structure of the C3620
View of the open PC C3620
Opening the housing
After loosening the two screws (see arrows) the front of the PC with TFT-
display can be opened, thus providing access to the drive (optional),
3½“ hard disk, processor, memory and plug-in cards.
An ATX motherboard with seven slots for plug-in cards is located behind
the removable card holder and the swivel-mounted power supply unit.
The connections of the Industrial PC to the outside are located on top of
the housing.
100-240 VAC-
full range power supply
3½“ hard disk
Slimline CD/ DVD-
ROM-drive (optional)
12“ TFT-display
card holder
7-Slot-
ATX motherboard

Product Description
8C3620, C3640
Structure of the C3640
View of the open PC C3640
Opening the housing
After loosening the two screws (see arrows) the front of the PC with TFT-
display can be opened, thus providing access to the drive (optional),
3½“ hard disk, processor, memory and plug-in cards.
An ATX motherboard with seven slots for plug-in cards is located behind
the removable card holder and the swivel-mounted power supply unit.
The connections of the Industrial PC to the outside are located on top of
the housing.
CD/DVD-Drive (optional)
Configuration with
CD/DVD-drive (optional)
Optional the Industrial PC is fitted with a CD/ DVD-drive.
The drive is located at the rear side of the PC.
100-240 VAC-
full range power supplyl
3½“ hard disk
Slimline CD/ DVD-
ROM drive (optional)
15“ TFT-display
card holders
7-Slot-
ATX motherboard

Product Description
C3620, C3640 9
Interfaces from C3620/ C3640-0060
ATX motherboard
interfaces
PS/2 connections
PS/2
The upper PS/2 connector (X104) allows a PS/2 mouse to be used, while a
PC keyboard can be connected to the lower PS/2 connector (X103).
USB interfaces
USB1 –USB4
The four USB interfaces (X108 –X111) are used to connect
peripheral devices with USB connections:
▪Devices with Intel®4th generation processors
(C3620/ C3640-0060) are equipped with 2 USB2.0 (X110,
X111) and 2 USB3.0 (X108, X109) interfaces.
▪Devices from Intel®6th and 7th generation processors
(C3620/ C3640-0070) are equipped with 4 USB3.0
interfaces.
Network connection
LAN1, LAN2
The RJ-45 connectors (X112, X113) allow the PC to be connected to a
10/100/1000BASE-T Local Area Network (LAN).
DVI-D (Digital Visual Interface)
DVI out
The DVI connectors (X114, X115) are used for transferring the video
signal. DVI-D standard is supported.
Serial interfaces
RS 232
COM1 –COM2
The basic version of the Industrial PC has one serial interface, COM1
(X116), using the type RS 232, which is brought to a 9 pin SUB-D plug
connector.
DisplayPort
DisplayPort
The DisplayPort (X117) is used for transferring the video signal.
Sound-On-Board
Sound
The Industrial PC has an on-board-interface with the following connectors:
Line In (X122), Line Out (X121) and Microphone jack (X120).
Additional plug-in cards (optional)
Type plate
There is a type plate on the top of the Industrial PC which provides
information about the hardware configuration of the Industrial PC at the
time it was supplied.

Installation Instructions
10 C3620, C3640
Installation Instructions
Please also refer to chapter General instructions.
Transport and Unpacking
The specified storage conditions must be observed (see chapter Technical
data).
Transport
Despite the robust design of the unit, the components are sensitive to
strong vibrations and impacts. During transport, your Industrial PC should
therefore be protected from excessive mechanical stress. Therefore,
please use the original packaging.
Warning
Danger of damage to the unit!
If the device is transported in cold weather or is exposed to extreme
variations in temperature, make sure that moisture (condensation) does not
form on or inside the device.
Prior to operation, the unit must be allowed to slowly adjust to room
temperature. Should condensation occur, a delay time of approximately 12
hours must be allowed before the unit is switched on.
Unpacking
Proceed as follows to unpack the unit:
1.Remove packaging.
2.Do not discard the original packaging. Keep it for future relocation.
3.Check the delivery for completeness by comparing it with your order.
4.Please keep the associated paperwork. It contains important
information for handling the unit.
5.Check the contents for visible shipping damage.
6.If you notice any shipping damage or inconsistencies between the
contents and your order, you should notify Beckhoff Service.

Installation Instructions
C3620, C3640 11
Installation of the PC in the control cabinet
The C3620 and C3640 Industrial PCs are designed for rack mounting in
machine and plant engineering applications.
The ambient conditions specified for operation must be observed (see the
section Technical data).
Preparation of the control
cabinet wall
The control cabinet wall must be prepared with the required mounting
opening for the computer unit and the eight holes for the set screws
according to the PC's dimensions (see chapter Assembly dimensions).
i
Note
When the unit is installed in an enclosure, adequate space for
ventilation and for opening the PC must be provided.
Please note the following points during installation of the PC:
•Position the PC in such a way that reflections on the screen are
avoided as far as possible.
•Use the position of the screen as a guide for the correct installation
height; it should be optimally visible for the user at all times.
•The PC should not be exposed to direct sunlight.
•When the unit is in its mounting position, the ventilation openings must
not be obstructed.
Warning
Extreme environmental conditions should be avoided as far as
possible. Protect the rear of your PC from dust, humidity and heat.
The clearance above and below the housing must be at least 100 mm
in order to ensure adequate ventilation of the PC.
The ventilation slots of the PC must not be covered.
Installation in a control
cabinet wall
Proceed as follows:
1. Insert the PC at the intended control cabinet wall position and protect it
from falling out, prior to final mounting.
2. Using 8 M4 nuts, fix the PC to the control cabinet wall by screwing the
nuts from the rear onto the set screws of the PC housing.
Earthing measures
Earthing measures
Earthing connections dissipate interference from external power supply
cables, signal cables or cables to peripheral equipment.
Establish a low-impedance connection from the earthing point on the PC
housing to the central earthing point on the control cabinet wall, in which
the computer is being installed. The earthing connection of the Industrial
PC is located beside the power supply connector.

Installation Instructions
12 C3620, C3640
Power Supply Connection
The 5-pin CAGE CLAMP plug connector and mounting flange illustrated is
located on the PC housing in order to connect the power supply.
Socket at the PC housing
Connection socket when
fitted with 100-240 VAC,
50-60 Hz power supply
unit (standard)
Technical data
Connecting socket
Number of contacts
5
Contact spacing
5 mm
Minimum conductor cross-section
1.5 mm²
Minimum conductor cross-section
(AWG)
16
Rated voltage (EN)
250 V
Rated voltage (CSA)
300 V
Current EN [A]
12 A
Current CSA [A]
15 A
Length of stripped conductor
8 to 9 mm
Power Supply Configuration
Supplied mains power unit
The Industrial PCs is either fitted with a 100-240 VAC, 50-60 Hz power
supply unit (standard) or with a 24 VDC power supply unit (with the option of
an uninterruptible power supply, UPS).
Current carrying capacity of
the 100-240 V power
supply unit
Output voltages from
the 100-240 V power
supply unit
Current loading
maximum
+3,3 V
16 A
+5 V stand by
2 A
+5 V
25 A
-5 V
0.3 A
+12 V
13 A
-12 V
0.8 A
Current carrying capacity of
the 24 V power supply unit
Output voltages from
the 24 V power supply
unit
Current loading
maximum
+5 V
25 A
-5 V
1 A
+12 V
10 A
-12 V
1.5 A

Installation Instructions
C3620, C3640 13
Coding pieces
The connectors are coded differently at the factory, using snap-on coding
pieces, according to the power supply unit that has been fitted.
Differently coded plug
connectors
Coding for the 100-240 VAC,
50-60 Hz power supply unit
Coding for the 24 VDC power supply
unit
Pin assignment and cable requirements
Pin assignment
There is an adhesive label with the pin assignments on the top of the
female plug connector. The minimum permitted conductive cross-
section is 1.5 mm², fused for 10 A (AWG 16).
Industrial PCs with 100-240 VAC, 50-60 Hz power supply unit
Pin assignment for the
100-240 V, 50-60 Hz power
supply unit
Pin
Function
1
N
100 –240V AC
Power supply
2
L
3
4
not used
5
not used
Industrial PCs with 24 VDC power supply unit
Pin assignment for the
24 VDC power supply unit
Pin assignment for
connecting the power
switch
Pin
Funktion
1
Power-Status
2
PC_ON
3
24 VDC Versorgungsspannung + Pol
Pin
Function
1
+
24V DC
Power supply
2
-
3
4
not used
5
not used
5
4
3
2
1
5
4
3
2
1
1 2 3

Installation Instructions
14 C3620, C3640
Fitting the Power Supply Cable
A 5-pin female plug connector with CAGE CLAMP connection and insertion
catches is supplied along with a snap-on strain relief housing in order to
assemble the PC power supply cable.
Materials for assembly of
the connector
Female plug connector
Strain relief housing
Female plug connector is
correspondingly coded
This female plug connector is also coded at the factory, according to the
type of power supply fitted, so that the plug, when assembled, will fit the
Industrial PC's connecting socket.
Technical data
Female plug connector
Number of contacts
5
Contact spacing
5 mm
Minimum conductor cross-section
1.5 mm²
Minimum conductor cross-section
(AWG)
16
Rated voltage (EN)
250 V
Rated voltage (CSA)
300 V
Current (EN)
16 A
Current (CSA)
15 A
Length of stripped conductor
8 to 9 mm
Fitting the connector to the
cable
The plug is fitted to the cable as follows:
1. Strip insulation from the cable ends. Follow the technical data for
the female plug connector in the above table!
2. Push the conductors into their mountings, simply by pushing them
in as indicated on the pin assignment label.
3. Push the lower part (part A) of the strain relief housing (see
photograph on page 14) onto the top of the female plug connector
until it snaps into place.
4. Relieve the strain on the supply cable by fixing it in place with the
cable clamp (part C) and fixing screws (part D) (see photograph
below).
Applying the strain relief
Fix the upper part (part B) of the strain relief housing by snapping it onto
the lower part.
A
B
C
D

Installation Instructions
C3620, C3640 15
Cable-cross-section for
connection of power supply
Warning
PC_ON and power status
Warning
UPS output
UPS output function
Connecting Power Supply
The external wiring consists of the connection of the power supply, the
battery pack (optional) and the connection of customized components for
shutting down the PC.
Cable Cross Sections
For the connection of the power supply, wiring with a cable-cross-section of
1.5 mm2 must be used.
With bigger distances between voltage source and PC, you take the
voltage drop as a function of the cable-cross-section as well as voltage
fluctuations of your distribution voltage into account, so that is secured that
the voltage doesn't fall under 22 V at the power supply.
The power supply must be protected with maximum 16 A.
Configuration for shutting down the PC
The connections for shutting down the Industrial PCs are established via
the PC_ON input and the Power Status output.
PC_ON and Power Status functions
•If the PC_ON input is connected to 24 V via a switch, the PC shuts
down according to the rules. The PC_ON signal is inverted, i.e. the
PC shuts down if the 24 V connection is live.
•If the PC_ON input is NOT connected by the user, the PC can be
booted in the familiar way by connecting the supply voltage and
shut down via the battery by switching off the supply voltage.
This procedure significantly reduces the service life of the
rechargeable battery and should therefore not be used.
•Once the PC has shut down, the Power Status output is switched
from 24 V to 0 V. Via this output a signal lamp can be connected or
a contactor for de-energizing the whole system. The maximum
load for the Power Status output is 0.5 A and a suitable fuse
should be provided.
UPS output
In order to maintain a screen display for the PC in the event of a power
failure, the power supply unit is equipped with a UPS output for connecting
a Control Panel. The maximum load for the output is 1.4 A (max. 2.5 A
from 2016 and later).
UPS output function
•The 24 V DC connection at the UPS output is live even after a
power failure. The maximum load is 1.4 A (max. 2.5 A from 2016
and later).
•Once the PC has been de-energized via the UPS software, the
UPS output is switched to 0 V. Any connected panel is thus
switched off, and total discharge of the rechargeable battery is
prevented.

Installation Instructions
16 C3620, C3640
Wiring diagram external
switch and power supply
Wiring diagram
Wiring according to the wiring diagram (the circuit of PC_ON and Power-
Status is symbolical):
Connection of the Battery Pack and UPS Output only in combination with
integrated UPS (order option).

Installation Instructions
C3620, C3640 17
Connecting devices
Warning
The power supply plug must be withdrawn!
Please read the documentation for the external devices prior to connecting
them.
During thunderstorms, plug connector must neither be inserted nor
removed.
When disconnecting a plug connector, always handle it at the plug. Do not
pull the cable!
Connecting cables
The connections are located at the side of the Industrial PC and at the rear
(power supply connection), and are documented in the section Product
Description.
When connecting the cables to the Industrial PC, proceed according to the
following sequence:
•Switch off all the devices that are to be connected.
•Disconnect all the devices that are to be connected from the power
supply.
•Connect all the cables between the Industrial PC and to the
devices that are to be connected.
•Connect all data transfer cables (if present) to the appropriate
plug-in receptacles of the data/telecommunication networks.
•Reconnect all devices to the power supply.
Check voltage rating and connect.
With compact 100-240 VAC 50/60 Hz power supply:
1. Check that the mains voltage is correct.
2. Insert the power supply cable that you have assembled (see the
section on Fitting the Power Supply Cable) into the Industrial PC's
power supply socket. Then connect it to a power socket with a
grounded earth connection.
When fitted with the (optional) 24 VDC power supply unit:
1. Check that the external power supply is providing the correct
voltage.
2. Insert the power supply cable that you have assembled (see the
section on Fitting the Power Supply Cable) into the Industrial PC's
power supply socket. Then connect it to your external 24 V power
supply.
Warning
If a 24 V UPS is installed, the correct type of rechargeable battery
must be used.

Operating Instructions
18 C3620, C3640
Operating Instructions
Switching the Industrial PC on and off
Switch on
The Industrial PC does not have its own mains switch. The Industrial PC
will start when the equipment is switched on, or when it is connected to the
power supply.
Shutting down and
switching off
When the plant is switched off, or when it is disconnected from its power
supply, the Industrial PC will be switched off.
Control software such as is typically used on Industrial PCs permits various
users to be given different rights. A user who may not close software may
also not switch the Industrial PC off, since data can be lost from the hard
disk by switching off while software is running.
Warning
First shut down, then switch off the PC!
If the Industrial PC is switched off as the software is writing a file to the
hard disk, the file will be destroyed. Control software typically writes
something to the hard disk every few seconds, so that the probability of
causing damage by switching off while the software is running is very high.
Warning
When you have shut down the Industrial PC, you have to switch off power
supply for at least 10 seconds before rebooting the system.
After resetting power supply the PC will start booting automatically.
First switching on and driver installation
When you switch on the Industrial PC for the first time, the pre-installed
operating system (optional) will be started. In this case, all the required
drivers for any additional, optional hardware components ordered with the
PC will already have been installed.
If the PC was ordered without operating system, you have to install the
operating system and the driver software for any auxiliary hardware
yourself. Please follow the instructions in the documentation for the
operating system and the additional devices.