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KS2751
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Beckhoff KL2751, KS2751, KL2761, KS2761 Documentation

Documentation
KL2751/KS2751, KL2761/KS2761
Single channel universal dimmer terminals
Version: Date:
3.1.0 2017-05-29

Table of contents

Table of contents
1 Foreword ....................................................................................................................................................5
1.1 Notes on the documentation........................................................................................................... 5
1.2 Safety instructions .......................................................................................................................... 6
1.3 Documentation revision levels ........................................................................................................ 7
2 Product overview.......................................................................................................................................9
2.1 KL2751 - Introduction ..................................................................................................................... 9
2.2 KL2761 - Introduction ................................................................................................................... 10
2.3 Basic function principles ............................................................................................................... 11
2.4 Technical data .............................................................................................................................. 12
2.5 LED displays................................................................................................................................. 13
3 Mounting and wiring ...............................................................................................................................14
3.1 Installation on mounting rails ........................................................................................................ 14
3.2 Installation positions ..................................................................................................................... 16
3.3 Connection system ....................................................................................................................... 18
3.4 KL2751, KL2761 - Connection...................................................................................................... 21
3.5 Notes on operation – intended use............................................................................................... 23
4 Application examples - overview ...........................................................................................................26
4.1 KL2751-0000 - Application example............................................................................................. 26
4.2 KL2751-0011 - Application example............................................................................................. 27
5 Configuration software KS2000 .............................................................................................................28
5.1 KS2000 - Introduction ................................................................................................................... 28
5.2 Parameterization with KS2000 ..................................................................................................... 30
5.3 Register ........................................................................................................................................ 32
5.4 Settings......................................................................................................................................... 33
5.5 Process data................................................................................................................................. 35
6 Access from the user program ..............................................................................................................37
6.1 Process image .............................................................................................................................. 37
6.2 Control and status bytes with diagnosis ....................................................................................... 38
6.3 Control and status bytes without diagnosis .................................................................................. 40
6.4 Register overview ......................................................................................................................... 41
6.5 Register description ...................................................................................................................... 42
6.6 Examples of Register Communication.......................................................................................... 45
6.6.1 Example 1: reading the firmware version from Register 9 of a terminal ..........................45
6.6.2 Example 2: Writing to an user register.............................................................................45
7 TwinCAT ...................................................................................................................................................48
7.1 Programming ................................................................................................................................ 50
7.2 FB_KL27x1Config function block.................................................................................................. 50
7.3 FB_Dimmer1SwitchEco function block......................................................................................... 50
7.4 Importing a function block............................................................................................................. 51
8 Appendix ..................................................................................................................................................53
8.1 Support and Service ..................................................................................................................... 53
Table of contents
KL2751/KS2751, KL2761/KS27614 Version: 3.1.0
Foreword

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®, 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.
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.
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

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 symbols
In this documentation the following symbols are used with an accompanying safety instruction or note. The safety instructions must be read carefully and followed without fail!
DANGER
WARNING
CAUTION
Attention
Note
Serious risk of injury!
Failure to follow the safety instructions associated with this symbol directly endangers the life and health of persons.
Risk of injury!
Failure to follow the safety instructions associated with this symbol endangers the life and health of persons.
Personal injuries!
Failure to follow the safety instructions associated with this symbol can lead to injuries to persons.
Damage to the environment or devices
Failure to follow the instructions associated with this symbol can lead to damage to the en­vironment or equipment.
Tip or pointer
This symbol indicates information that contributes to better understanding.
KL2751/KS2751, KL2761/KS27616 Version: 3.1.0
Foreword

1.3 Documentation revision levels

Version Comment
3.1.0 • Process data description corrected
• Downloadlink " FB_Dimmer1SwitchEco" corrected
3.0.0 • Migration
• Product overview updated
• Chapter "TwinCAT" including Link to FB_KL27x1Config added
2.6.0 • Technical data updated
• Preface updated
2.5.0 • The permissible installation position and ambient temperature range in operation are load-dependent (refer to the chapter Mounting of terminals with increased thermal power dissipation!)
• Output of diagnostic data in the status byte and terminal internal temperature in the data input word DataIN also for KL2751-0000 from firmware 3B
2.4.0 • KS2751 and KS2761 added
• Notes on operation expanded
• Basic function principles updated
2.3.0 • Register description and description of the KS2000 configuration software updated
• Technical data updated
• Notes on operation expanded
2.2.0 • Description of the KL2751-0011 and KL2761-0011 added
• Product overview updated
• Application example for KL2751-0011 and KL2761-0011 added
• Notes on operation expanded
2.1.0 • Notes on operation added
2.0.0 • Description of the KL2761-0000 added
• Description of the TwinCAT function block FB_Dimmer1SwitchEco added
1.2.0 • Register description updated
• Description of the KS2000 configuration software updated
• Installation instructions revised
1.1.0 • Register description updated
• Description of the KS2000 configuration software updated
• Process data description updated
1.0.0 • Description of the KS2000 configuration software expanded
• Basic function principles corrected
• English translation available
0.1 First preliminary version
Foreword
Firmware and hardware versions
Version of the docu­menta­tion
3.0.0 4H 09 4H 09 4H 06 4H 06
2.6.0 4H 09 4H 09 4H 06 4H 06
2.5.0 3B 05 3B 05 3B 02 3B 02
2.4.0 2F 03 2F 03 1F 02 1F 02
2.3.0 2E 01 2E 01 1E 00 1E 00
2.2.0 2B 01 2B 01 1B 00 1B 00
2.1.0 2A 01 - - 1A 00 - -
2.0.0 2A 01 1A 00
1.2.0 2A 01 - -
1.1.0 1C 00
1.0.0 1A 00
0.1 1A 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
KL2751-0000 KS2751-0000
Firmware Hardware Firmware Hardware Firmware Hardware Firmware Hardware
KL2751-0011 KS2751-0011
KL2761-0000 KS2761-0000
KL2761-0011 KS2761-0011
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 ser. no.: 38 06 01 00:
38 - week of production 38 06 - year of production 2006 1C - firmware version 1C 00 - hardware version 00
KL2751/KS2751, KL2761/KS27618 Version: 3.1.0

2 Product overview

2.1 KL2751 - Introduction

Product overview
Fig.1: KL2751
The KL2751-0000/ KS2751-0000 dimmer terminal is intended for the direct connection of resistive, inductive or capacitive AC lamp loads with a power rating of up to 300 VA (W). Typical lighting devices such as incandescent lamps, inductive and electronic ballasts are detected and controlled in the right operation mode. The dimmer terminal calculates the appropriate phase control angle in leading edge or trailing edge phase control from the brightness values specified via the process data. The output is short-circuit-proof and overload-proof.
The status of the load can be read in (from firmware version 3B).
A variant without power contacts (see contact Diagram, right) is also available in the KL2751-0011/ KS2751-0011. This can be used for 230 V even without a special power feed terminal.
Product overview

2.2 KL2761 - Introduction

Fig.2: KL2761
The KL2761-0000/ KS2761-0000 dimmer terminal is intended for the direct connection of resistive, inductive or capacitive AC lamp loads with a power rating of up to 600VA(W). Typical lighting devices such as incandescent lamps, inductive and electronic ballasts are detected and controlled in the right operation mode. The dimmer terminal calculates the appropriate phase control angle in leading edge or trailing edge phase control from the brightness values specified via the process data. The output is short-circuit-proof and overload-proof.
The load status can be read.
A variant without power contacts (see contact diagram, right) is also available in the KL2761-0011/ KS2761-0011. This can be used for 230V even without a special power feed terminal.
KL2751/KS2751, KL2761/KS276110 Version: 3.1.0

2.3 Basic function principles

Product overview
Fig.3: KL2751, KL2761
The KL2751 (300VA) and KL2761 (600VA) dimmer terminals are intended for the direct connection of different AC lamp loads. Typical lighting devices such as incandescent lamps, inductive and electronic ballasts are detected and controlled in the right operation mode. In addition to automatic load detection, the Bus Terminal offers a short-circuit-proof and overload-proof output.
The KL2751and KL2761 are extremely compact universal dimmers in Bus Terminal format and are aimed primarily at use in building services. The brightness values of the lighting system can be modified via the controller process data, based on any bus system supported by the Beckhoff I/O system. However, the universal dimmers can also be used as power switches for AC voltages. With a switchable power of 300VA(W) or 600VA(W), wear-free switching of numerous consumers is possible.
In the Automatic Recognition dimmer mode, the dimmer terminals can detect the load type and save the result. To do this the dimmer terminal switches the load on at low power for about 5seconds after mains voltage is applied. The dimmer terminal cannot be controlled during this period.
The dimmer terminal is short-circuit-proof. It limits the current in the event of a short circuit, thereby protecting the load and preventing triggering of the main fuse.
Notes on operation
Also read the notes on operation [}23] in the chapter Mounting and wiring.
Attention
Product overview

2.4 Technical data

Technical data KL2751-0000, KS2751-0000,
KL2751-0011, KS2751-0011
Mains voltage 230V
AC
KL2761-0000, KS2761-0000, KL2761-0011, KS2761-0011
230V
AC
Power rating* 300VA (W), max. 1.35A 600VA (W), max. 2.7A
Permissible load types Inductive (transformers only, no ballasts for fluorescent tubes),
capacitive or resistive lamp loads No motors! Inductive and capacitive loads must not be mixed! Automatic load detection
Cable length max. 100m between dimmer terminal and lamp
Types of control Leading edge phase control, trailing edge phase control, rectifier
mode (positive or negative half-wave in leading edge phase control)
Resolution max. 7bit
Leakage current (OFF state) < 2mA
Electrical isolation 500V (K-bus /field voltage), 3750VAC (1min.)
Power supply for the electronics via the K-bus
Current consumption from K-bus typically 95mA
Bit width in the input process image 1 x 16bit data, 1 x 8bit status
Bit width in the output process image 1 x 16bit data, 1 x 8bit control
Configuration via the Bus Coupler or the controller
Weight approx. 60g
Permissible ambient temperature range
0 °C to + 55 °C (refer to the chapter Installation positions! [}16])
during operation
Permissible ambient temperature range
-25°C ... + 85°C
during storage
Permissible relative air humidity 95%, no condensation
Dimensions (W x H x D) approx. 15mm x 100mm x 70mm (width aligned: 12mm)
Mounting [}14]
on 35mm mounting rail conforming to EN60715
Vibration/shock resistance conforms to EN60068-2-6/ EN60068-2-27
EMC immunity/emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP20
Installation position
load-dependent (refer to the chapter Installation positions! [}16])
Pluggable wiring for all KSxxxx terminals
Approval CE
*) Rated output = lamp power + ballast losses
The ballast losses are typically equivalent to:
• 5% of the rated output of the ballast in the case of electronic ballasts
• 20% of the rated output of the transformer in the case of inductive ballasts
KL2751/KS2751, KL2761/KS276112 Version: 3.1.0

2.5 LED displays

Fig.4: KL2751, KL2761 - LEDs
LED Display
K-Bus run (green) off No data transfer on the K-Bus
on Data transmission on the K-bus is active
Mains (green) off • Terminal is not synchronized with the mains*
• With automatic load detection the load type has not yet been tested
on • Terminal has synchronized itself with the mains*
• Load type was detected
ON (green) off Process data are zero
on Process data are not zero
Error (red) on A load-side short circuit was detected
Product overview
*) Synchronisation with the mains can only occur if a load is connected!
Risk of electric shock!
With the Sync LED switched off mains voltage may still be present at the KL2751 output! At
WARNING
Automatic load detection display
After the load detection (shortly after the mains voltage has been switched on) the terminal signals the load type and the selected operation mode via the LEDs.
• LED sequence green / red: Trailing edge phase control for resistive or capacitive load
• LED sequence green / red: Leading edge phase control for inductive load
this time automatic load detection and synchronisation have not yet been carried out!
Mounting and wiring

3 Mounting and wiring

3.1 Installation on mounting rails

Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation,
WARNING
Assembly
disassembly or wiring of the Bus Terminals!
Fig.5: Attaching on mounting rail
The Bus Coupler and Bus Terminals are attached to commercially available 35mm mounting rails (DIN rails according to EN60715) by applying slight pressure:
1. First attach the Fieldbus Coupler to the mounting rail.
2. The Bus Terminals are now attached on the right-hand side of the Fieldbus Coupler. Join the compo­nents with tongue and groove and push the terminals against the mounting rail, until the lock clicks onto the mounting rail. If the Terminals are clipped onto the mounting rail first and then pushed together without tongue and groove, the connection will not be operational! When correctly assembled, no significant gap should be visible between the housings.
Fixing of mounting rails
The locking mechanism of the terminals and couplers extends to the profile of the mounting
Note
rail. At the installation, the locking mechanism of the components must not come into con­flict with the fixing bolts of the mounting rail. To mount the mounting rails with a height of
7.5mm under the terminals and couplers, you should use flat mounting connections (e.g. countersunk screws or blind rivets).
KL2751/KS2751, KL2761/KS276114 Version: 3.1.0
Mounting and wiring
Disassembly
Fig.6: Disassembling of terminal
Each terminal is secured by a lock on the mounting rail, which must be released for disassembly:
1. Pull the terminal by its orange-colored lugs approximately 1cm away from the mounting rail. In doing so for this terminal the mounting rail lock is released automatically and you can pull the terminal out of the bus terminal block easily without excessive force.
2. Grasp the released terminal with thumb and index finger simultaneous at the upper and lower grooved housing surfaces and pull the terminal out of the bus terminal block.
Connections within a bus terminal block
The electric connections between the Bus Coupler and the Bus Terminals are automatically realized by joining the components:
• The six spring contacts of the K-Bus/E-Bus deal with the transfer of the data and the supply of the Bus Terminal electronics.
• The power contacts deal with the supply for the field electronics and thus represent a supply rail within the bus terminal block. The power contacts are supplied via terminals on the Bus Coupler (up to 24V) or for higher voltages via power feed terminals.
Power Contacts
During the design of a bus terminal block, the pin assignment of the individual Bus Termi-
Note
PE power contact
nals must be taken account of, since some types (e.g. analog Bus Terminals or digital 4­channel Bus Terminals) do not or not fully loop through the power contacts. Power Feed Terminals (KL91xx, KL92xx or EL91xx, EL92xx) interrupt the power contacts and thus rep­resent the start of a new supply rail.
The power contact labeled PE can be used as a protective earth. For safety reasons this contact mates first when plugging together, and can ground short-circuit currents of up to 125A.
Mounting and wiring
Fig.7: Power contact on left side
Possible damage of the device
Note that, for reasons of electromagnetic compatibility, the PE contacts are capacitatively
Attention
coupled to the mounting rail. This may lead to incorrect results during insulation testing or to damage on the terminal (e.g. disruptive discharge to the PE line during insulation testing of a consumer with a nominal voltage of 230V). For insulation testing, disconnect the PE supply line at the Bus Coupler or the Power Feed Terminal! In order to decouple further feed points for testing, these Power Feed Terminals can be released and pulled at least 10mm from the group of terminals.
Risk of electric shock!
The PE power contact must not be used for other potentials!
WARNING

3.2 Installation positions

Constraints regarding installation position and operating temperature range
Please refer to the technical data for a terminal to ascertain whether any restrictions re-
Attention
garding the installation position and/or the operating temperature range have been speci­fied. When installing high power dissipation terminals ensure that an adequate spacing is maintained between other components above and below the terminal in order to guarantee adequate ventilation!
Optimum installation position (standard)
The optimum installation position requires the mounting rail to be installed horizontally and the connection surfaces of the EL/KL terminals to face forward (see Fig. “Recommended distances for standard installation position”). The terminals are ventilated from below, which enables optimum cooling of the electronics through convection. "From below" is relative to the acceleration of gravity.
KL2751/KS2751, KL2761/KS276116 Version: 3.1.0
Mounting and wiring
Fig.8: Recommended distances for standard installation position
Compliance with the distances shown in Fig. “Recommended distances for standard installation position” is recommended.
Other installation positions
All other installation positions are characterized by different spatial arrangement of the mounting rail - see Fig “Other installation positions”.
The minimum distances to ambient specified above also apply to these installation positions.
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