Beckhoff KM2774 Operator's manual

Documentation | EN
KM2774
Terminal module for jalousie motors
2021-03-03 | Version: 2.0.0

Table of contents
KM2774 3Version: 2.0.0
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 Mounting and wiring................................................................................................................................10
3.1 Mounting and demounting - terminals with traction lever unlocking ................................................10
3.2 Recommended mounting rails.........................................................................................................11
3.3 Wiring...............................................................................................................................................12
3.4 Dimensions......................................................................................................................................15
4 KS2000 Configuration Software.............................................................................................................16
4.1 KS2000 - Introduction......................................................................................................................16
4.2 Parameterization with KS2000 ........................................................................................................17
4.3 Settings............................................................................................................................................18
5 Access from the user program ..............................................................................................................20
5.1 Process image.................................................................................................................................20
5.2 Mapping...........................................................................................................................................21
5.3 Control and status byte....................................................................................................................23
5.3.1 Process data mode.......................................................................................................... 23
5.3.2 Register communication .................................................................................................. 23
5.4 Process input data (DataIN) ............................................................................................................25
5.5 Process output data (DataOUT) ......................................................................................................26
5.6 Register overview ............................................................................................................................27
5.7 Register description.........................................................................................................................28
5.8 Examples of Register Communication ............................................................................................30
5.8.1 Example 1: reading the firmware version from Register 9............................................... 30
5.8.2 Example 2: Writing to an user register............................................................................. 30
6 Appendix ..................................................................................................................................................34
6.1 Support and Service ........................................................................................................................34

Table of contents
KM27744 Version: 2.0.0

Foreword
KM2774 5Version: 2.0.0
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®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®, SafetyoverEtherCAT®,
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
KM27746 Version: 2.0.0
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
KM2774 7Version: 2.0.0
1.3 Documentation issue status
Version Comment
2.0.0 • Migration
• Structure update
1.0.0 • First release
Firmware and hardware versions
Documentation
Version
Firmware version Hardware version
2.0.0 1E 07
1.0.0 1E 04
The firmware and hardware version can be found in the serial number on the label at the bottom of the
terminal module.
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 12 10 1E04:
12 - week of production 12
10 - year of production 2010
1E - firmware version 1E
04 - hardware version 04

Product overview
KM27748 Version: 2.0.0
2 Product overview
2.1 Introduction
Fig.1: KM2774 - Triac outputs for four blind motors
The KM2774-0000 terminal module is used for controlling up to four motors for blinds and for connecting the
associated push buttons.
Three interlocked triac outputs (230V, 1.5A), three digital inputs (24V) and one ground switching output
(24V, 20mA), e.g. for connecting a button LED, are available for each motor. The outputs are protected
against overload. An adjustable overcurrent limit protects the motor from damage.
LEDs indicate the status of the inputs and outputs. In addition, there are LEDs for data traffic on the K-bus
(RUN), the presence of the supply voltages (24VDC, 230VAC) and for the indication of overtemperature
(Error) in the terminal module.
The triac outputs, the LED outputs and the status LEDs are not controlled if the power supply voltage (230V)
is not present, or if the temperature is too high.

Product overview
KM2774 9Version: 2.0.0
2.2 Technical data
Technical data KM2774-0000
Number of power outputs 4 x 3 make contacts
Rated voltage of the power outputs 80... 230VAC
Overvoltage protection at the power outputs >275V
Output current from the power outputs 1.5A (0.6mA no-load current)
Surge current 40A (16ms), 3A (30s)
Overcurrent limitation Ajustable
Switch-on time 0.1... 10ms, zero crossing
Switch-off time T/2
Residual voltage maximum 1.5V (60mA... 1A), 150Ω (<60mA)
Number of digital outputs 4 (1 per channel), ground switching
Nominal voltage 24VDC
Output current maximum 20mA, short-circuit proof
Signal voltage "0" -3V... 5V
Signal voltage "1" -15V... 30V
Number of digital inputs 12 (4 x 3)
Nominal voltage 24VDC (-15%/+20%)
Signal voltage "0" -3V... 5V (IEC61132-2, type1)
Signal voltage "1" -15V... 30V (IEC61132-2, type1)
Input filter 3.0ms
Input current typically 3mA (IEC61132-2, type1)
Power supply for the electronics via the K-bus
Current consumption via K-bus typically 30mA
Electrical isolation 500V (K-bus/field voltage), 3750VAC (1minute)
Bit width in the input process image 24bit
Dimensions with terminals (W x H x D) approx. 135mmx100mmx40mm (width aligned:
132mm), see dimensional drawing [}15]
Weight approx.270g
Permissible ambient temperature range during
operation
0°C ... + 55°C
Permissible ambient temperature range during
storage
-25°C ... + 85°C
Permissible relative air humidity 95%, no condensation
Permissible degree of pollution 1
Mounting [}10] on a 35mm mounting rail (e.g. DIN rail TH35-7.5
conforming to EN60715)
Vibration/shock resistance conforms to EN60068-2-6/ EN60068-2-27,
EN60068-2-29
EMC immunity/emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP20
Installation position variable
Approval CE

Mounting and wiring
KM277410 Version: 2.0.0
3 Mounting and wiring
3.1 Mounting and demounting - terminals with traction
lever unlocking
The terminal modules are fastened to the assembly surface with the aid of a 35 mm mounting rail (e.g.
mounting rail TH 35-15).
Fixing of mounting rails
The locking mechanism of the terminals and couplers extends to the profile of the mounting 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 recommended mounting rails under the terminals and cou-
plers, you should use flat mounting connections (e.g. countersunk screws or blind rivets).
WARNING
Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the Bus Terminals!
Mounting
• Fit the mounting rail to the planned assembly location.
and press (1) the terminal module against the mounting rail until it latches in place on the mounting
rail (2).
• Attach the cables.
Demounting
• Remove all the cables. Thanks to the KM/EM connector, it is not necessary to remove all the cables
separately for this, but for each KM/EM connector simply undo 2 screws so that you can pull them off
(fixed wiring)!
• Lever the unlatching hook on the left-hand side of the terminal module upwards with a screwdriver (3).
As you do this

Mounting and wiring
KM2774 11Version: 2.0.0
◦ an internal mechanism pulls the two latching lugs (3a) from the top hat rail back into the terminal
module,
◦ the unlatching hook moves forwards (3b) and engages
• In the case 32 and 64 channel terminal modules (KMxxx4 and KMxxx8 or EMxxx4 and EMxxx8) you
now lever the second unlatching hook on the right-hand side of the terminal module upwards in the
same way.
• Pull (4) the terminal module away from the mounting surface.
3.2 Recommended mounting rails
Terminal Modules und EtherCAT Modules of KMxxxx and EMxxxx series, same as the terminals of the
EL66xx and EL67xx series can be snapped onto the following recommended mounting rails:
• DIN Rail TH35-7.5 with 1mm material thickness (according to EN60715)
• DIN Rail TH35-15 with 1,5mm material thickness

Mounting and wiring
KM277412 Version: 2.0.0
Pay attention to the material thickness of the DIN Rail
Terminal Modules und EtherCAT Modules of KMxxxx and EMxxxx series, same as the terminals of
the EL66xx and EL67xx seriesdoes not fit to the DIN Rail TH35-15 with 2,2 to 2,5mm material
thickness (according to EN60715)!
3.3 Wiring
WARNING
Risk of injury through electric shock and damage to the device!
Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or
wiring of the Bus Terminals!
Fig.2: KM2774 - Wiring
Connection for supply voltage (24V)
CAUTION
Ground the 0V potentials of the 24V supply voltage.
Connect
• the 0V potential of the supply voltage (Us) of the Bus Coupler that controls the KM2774-1001 and
• the 0V potential of the KM2774-1001 supply voltage (X0, terminal point 3, 4 or 5)
with the protective earth.
Terminal strip Terminal point Name Function
X0: 24V 0 24V 24V supply for module electronics
1 24V 24V supply for module electronics
2 0V 0V supply for module electronics
3 0V 0V supply for module electronics
4 0V 0V supply for module electronics

Mounting and wiring
KM2774 13Version: 2.0.0
Connection of the push buttons for channels 1 to 4
Terminal strip Terminal point Name Function
X1: Ch1 0 24V Channel1: 24V for push button
1 IN1 Channel1: Input for button 1
2 IN2 Channel1: Input for button 2
3 IN3 Channel1: Input for button 3
4 LED Channel1: Switched ground for button LED
X2: Ch2 0 24V Channel2: 24V for push button
1 IN1 Channel2: Input for button 1
2 IN2 Channel2: Input for button 2
3 IN3 Channel2: Input for button 3
4 LED Channel2: Switched ground for button LED
X3: Ch3 0 24V Channel3: 24V for push button
1 IN1 Channel3: Input for button 1
2 IN2 Channel3: Input for button 2
3 IN3 Channel3: Input for button 3
4 LED Channel3: Switched ground for button LED
X4: Ch4 0 24V Channel4: 24V for push button
1 IN1 Channel4: Input for button 1
2 IN2 Channel4: Input for button 2
3 IN3 Channel4: Input for button 3
4 LED Channel4: Switched ground for LED

Mounting and wiring
KM277414 Version: 2.0.0
Connection of the motors for channels 1 to 4
Terminal strip Terminal point Name Function
X11: Ch1 0 L1 Channel1: Phase L1 for motor 1
1 L2 Channel1: Phase L2 for motor 1
2 L3 Channel1: Phase L3 for motor 1
3 N Channel1: Neutral conductor for motor 1
(internally connected to the neutral
conductor terminal points of the other
channels)
4 PE Channel1: Protective earth for motor1
X12: Ch2 0 L1 Channel2: Phase L1 for motor2
1 L2 Channel2: Phase L2 for motor2
2 L3 Channel2: Phase L3 for motor2
3 N Channel2: Neutral conductor for motor2
(internally connected to the neutral
conductor terminal points of the other
channels)
4 PE Channel2: Protective earth for motor2
X13: Ch3 0 L1 Channel3: Phase L1 for motor3
1 L2 Channel3: Phase L2 for motor3
2 L3 Channel3: Phase L3 for motor3
3 N Channel3: Neutral conductor for motor3
(internally connected to the neutral
conductor terminal points of the other
channels)
4 PE Channel3: Protective earth for motor3
X14: Ch4 0 L1 Channel4: Phase L1 for motor 4
1 L2 Channel4: Phase L2 for motor 4
2 L3 Channel4: Phase L3 for motor 4
3 N Channel4: Neutral conductor for motor 4
(internally connected to the neutral
conductor terminal points of the other
channels)
4 PE Channel4: Protective earth for motor4
Connection for supply voltage (230V)
Terminal strip Terminal point Name Function
X10: 230V 0 L Load voltage supply (230V)
1 L Continuation of load voltage (230V)
2 N Load voltage supply (0V)
3 N Continuation of load voltage (0V)
4 PE Protective earth
4 PE Protective earth

Mounting and wiring
KM2774 15Version: 2.0.0
3.4 Dimensions
Fig.3: KM2774 - Dimensions

KS2000 Configuration Software
KM277416 Version: 2.0.0
4 KS2000 Configuration Software
4.1 KS2000 - Introduction
The KS2000 configuration software permits configuration, commissioning and parameterization of bus
couplers, of the affiliated bus terminals and of Fieldbus Box Modules. The connection between bus coupler/
Fieldbus Box Module and the PC is established by means of the serial configuration cable or the fieldbus.
Fig.4: KS2000 configuration software
Configuration
You can configure the Fieldbus stations with the Configuration Software KS2000 offline. That means, setting
up a terminal station with all settings on the couplers and terminals resp. the Fieldbus Box Modules can be
prepared before the commissioning phase. Later on, this configuration can be transferred to the terminal
station in the commissioning phase by means of a download. For documentation purposes, you are provided
with the breakdown of the terminal station, a parts list of modules used and a list of the parameters you have
modified. After an upload, existing fieldbus stations are at your disposal for further editing.
Parameterization
KS2000 offers simple access to the parameters of a fieldbus station: specific high-level dialogs are available
for all bus couplers, all intelligent bus terminals and Fieldbus Box modules with the aid of which settings can
be modified easily. Alternatively, you have full access to all internal registers of the bus couplers and
intelligent terminals. Refer to the register description for the meanings of the registers.

KS2000 Configuration Software
KM2774 17Version: 2.0.0
Commissioning
The KS2000 software facilitates commissioning of machine components or their fieldbus stations: Configured
settings can be transferred to the fieldbus modules by means of a download. After a login to the terminal
station, it is possible to define settings in couplers, terminals and Fieldbus Box modules directly online. The
same high-level dialogs and register access are available for this purpose as in the configuration phase.
The KS2000 offers access to the process images of the bus couplers and Fieldbus Box modules.
• Thus, the coupler's input and output images can be observed by monitoring.
• Process values can be specified in the output image for commissioning of the output modules.
All possibilities in the online mode can be used in parallel with the actual fieldbus mode of the terminal
station. The fieldbus protocol always has the higher priority in this case.
4.2 Parameterization with KS2000
Connect the configuration interface of your Fieldbus Coupler with the serial interface of your PC via the
configuration cable and start the KS2000 Configuration Software.
Click on the Login button. The configuration software will now load the information for the
connected fieldbus station.
In the example shown, this is
• a BK9000 Bus Coupler for Ethernet
• a KL1xx2 Digital Input Terminal
• a terminal module for blind motors KM2774-0000
• a KL9010 Bus End Terminal
Fig.5: Display of the fieldbus station in KS2000
The left-hand KS2000 window displays the terminals of the fieldbus station in a tree structure.
The right-hand KS2000window contains a graphic display of the fieldbus station terminals.
In the tree structure of the left-hand window, click on the plus-sign next to the module whose parameters you
wish to change (pos. 2 in the example).

KS2000 Configuration Software
KM277418 Version: 2.0.0
Fig.6: KS2000 branch for channel 1 of the KM2774
For the KM2774-0000, the branches Register, Settings and ProcData are displayed:
• Register enables direct access to the register of the KM2774-0000.
• The dialog screen for parameterizing the KM2774-0000 can be found under Settings [}18].
• ProcData shows the process data of the KM2774-0000.
4.3 Settings
Settings for parameterizing the KM2774-0000.
Fig.7: Dialog screen for parameterizing the KM2774
Current limit
Channel 1 (R34)
R34 [}28]
Here you can set the current limit for channel1 (default: 1500mA).
Permissible value range: 50 to 1500mA.

KS2000 Configuration Software
KM2774 19Version: 2.0.0
Channel 2 (R35)
R35 [}29]
Here you can set the current limit for channel1 (default: 1500mA).
Permissible value range: 50 to 1500mA.
Channel 3 (R36)
R36 [}29]
Here you can set the current limit for channel1 (default: 1500mA).
Permissible value range: 50 to 1500mA.
Channel 4 (R37)
R37 [}29]
Here you can set the current limit for channel1 (default: 1500mA).
Permissible value range: 50 to 1500mA.
Dead time
Dead time for channel1 (R38)
R38 [}29]
Here you can define the dead time until overcurrent shutdown for channel 1 (default: 400ms).
Permissible value range: 100 to 2560ms in steps of 10ms.
If you enter 0ms, the dead time is disabled. The output switches off immediately when the current limit is
exceeded.
Dead time for channel2 (R39)
R39 [}29]
Here you can define the dead time until overcurrent shutdown for channel2 (default: 400ms).
Permissible value range: 100 to 2560ms in steps of 10ms.
If you enter 0ms, the dead time is disabled. The output switches off immediately when the current limit is
exceeded.
Dead time for channel3 (R40)
R40 [}29]
Here you can define the dead time until overcurrent shutdown for channel3 (default: 400ms).
Permissible value range: 100 to 2560ms in steps of 10ms.
If you enter 0ms, the dead time is disabled. The output switches off immediately when the current limit is
exceeded.
Dead time for channel4 (R41)
R41 [}29]
Here you can define the dead time until overcurrent shutdown for channel4 (default: 400ms).
Permissible value range: 100 to 2560ms in steps of 10ms.
If you enter 0ms, the dead time is disabled. The output switches off immediately when the current limit is
exceeded.

Access from the user program
KM277420 Version: 2.0.0
5 Access from the user program
5.1 Process image
The KM2774 terminal module presents itself in the process image with 2 or 3bytes of input data and 2 or
3bytes of output data. These are organized as follows:
Format Input data Output data
Byte SB [}23] CB [}23]
Word DataIN [}25] DataOUT [}26]
*) Word alignment: The Bus Coupler places values on even byte addresses
Key
SB: Status byte (not applicable for compact evaluation)
CB: Control byte (not applicable for compact evaluation)
DataIN: Process input data
DataOUT: Process output data
• Please refer to the Mapping [}21] page for the assignment of the bytes and words to the addresses
of the controller.
• The meaning of the control and status bytes is explained on the Control and Status bytes [}23] page.
• For a description of the process data words please refer to the pages on Process input data (DataIN)
[}25] and Process output data (DataOUT) [}26].