Beckhoff KL2798 Bedienerhandbuch
Documentation | EN
KL2798
Bus terminal, 8-channel solid state output, 30 V AC, 48 V DC,
2 A, potential-free
2021-06-17 | Version: 1.1.0
Table of contents
KL2798 3Version: 1.1.0
Table of contents
1 Foreword ....................................................................................................................................................5
1.1 Notes on the documentation..............................................................................................................5
1.2 Safety instructions .............................................................................................................................6
1.3 Documentation Issue Status..............................................................................................................7
2 Product overview.......................................................................................................................................8
2.1 Introduction........................................................................................................................................8
2.2 Technical data ...................................................................................................................................9
3 Presentation KL2798 within TwinCAT ...................................................................................................10
4 Mounting and wiring................................................................................................................................11
4.1 Instructions for ESD protection........................................................................................................11
4.2 Installation on mounting rails ...........................................................................................................12
4.3 Connection system ..........................................................................................................................14
4.4 Connection and LED displays .........................................................................................................18
5 Appendix ..................................................................................................................................................19
5.1 Support and Service ........................................................................................................................19
Table of contents
KL27984 Version: 1.1.0
Foreword
KL2798 5Version: 1.1.0
1 Foreword
1.1 Notes on the documentation
Intended audience
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 documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.
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.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development.
We reserve the right to revise and change the documentation at any time and without prior announcement.
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®, TwinCAT/BSD®, TC/BSD®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®,
SafetyoverEtherCAT®, TwinSAFE®, XFC®, XTS® and XPlanar® 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, EP1456722, EP2137893, DE102015105702 with corresponding
applications or registrations in various other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.
Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
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.
Foreword
KL27986 Version: 1.1.0
1.2 Safety instructions
Safety regulations
Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.
Exclusion of liability
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.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.
Description of instructions
In this documentation the following instructions are used.
These instructions must be read carefully and followed without fail!
DANGER
Serious risk of injury!
Failure to follow this safety instruction directly endangers the life and health of persons.
WARNING
Risk of injury!
Failure to follow this safety instruction endangers the life and health of persons.
CAUTION
Personal injuries!
Failure to follow this safety instruction can lead to injuries to persons.
NOTE
Damage to environment/equipment or data loss
Failure to follow this instruction can lead to environmental damage, equipment damage or data loss.
Tip or pointer
This symbol indicates information that contributes to better understanding.
Foreword
KL2798 7Version: 1.1.0
1.3 Documentation Issue Status
Version Comment
1.1.0 • Technical data updated
• Chapter Instructions for ESD protection added
• Design of the safety instructions adapted to IEC 82079-1
• New title page
1.0.0 • First release
Firmware and hardware versions
Documentation
Version
KL2798-0000
Firmware Hardware
1.1.0 - 01
1.0.0 - 00
The firmware and hardware versions (delivery state) can be taken from the serial number printed on the side
of the terminal.
Syntax of the serial number
Structure of the serial number: WW YY FF HH
WW - week of production (calendar week)
YY - year of production
FF - firmware version
HH - hardware version
Example with serial number 40 15 1A 00:
40 - week of production 40
15 - year of production 2015
1A - firmware version 1A
00 - hardware version 00
Product overview
KL27988 Version: 1.1.0
2 Product overview
2.1 Introduction
Fig.1: KL2798 - Bus terminal, 8-channel solid state output, 30 V AC, 48 V DC, 2 A, potential-free
The digital KL2798 Bus Terminal provides eight switches that can be used like a relay contact for AC/DC
voltages. The electronic switch is realized through high-performance MOSFET transistors with low switch-on
resistance. The switch itself is not short-circuit-proof, but due to its high pulse current capability it can cope
with current until an external fuse triggers a switch-off.
Wear resistance increases the availability of the application. Resistive and inductive loads can be switched
up to a rated voltage of 30VAC/DC, completely resistive loads also up to a rated voltage of 48VDC.
High peak voltages and electromagnetic interference pulses are prevented.
Product overview
KL2798 9Version: 1.1.0
2.2 Technical data
Technical data KL2798-0000
Connection technology 2-wire
Number of outputs 8 make contacts
Rated load voltage 0 … 30VAC/DC (only ohmic load: 0 … 48VDC)
Peak current max. 2A per channel (∑ 10A)
Breakdown voltage 80V
Peak current 5A (100ms), < 50A (10ms)
Short circuit current not short-circuit-proof, see peak current
Reverse voltage protection –
Isolation voltage (channel/channel) < 200V
Electrical isolation 500V (K-bus/field potential)
Switching on speed typ. 1.8ms, max. 5ms
Switching off speed typ. 30ms, max. 50ms
On-resistance typ. 0.03Ω
Current consumption power contacts –
Current consumption K-bus 80mA
Bit width in the process image 8 output bits
Special features substitute for relay contacts, potential-free
Dimensions (W x H x D) app. 15 mm x 100 mm x 70 mm (width aligned: 12mm)
Weight app. 50 g
Mounting [}11] on 35 mm mounting rail according to EN60715
Permissible ambient temperature range at
operation
0 … +55°C
Permissible ambient temperature range for
storage
-25…+85°C
Permissible relative air humidity 95 %, no condensation
Vibration/shock resistance conforms to EN60068-2-6/ EN60068-2-27
EMC immunity/ emission conforms to EN61000-6-2/ EN61000-6-4
Installation position variable
Protection class IP20
Approvals/ markings CE, cULus
Presentation KL2798 within TwinCAT
KL279810 Version: 1.1.0
3 Presentation KL2798 within TwinCAT
Fig.2: KL2798 within TwinCAT 2.11
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