Lenze L-force 9400 Mounting instructions

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EDS94TA10040xxxx
13276548
Ä.<bQä
Software Manual
Technology application "synchronism with mark synchronisation"
9400
L-force Runtime Software

9400 Technology applications | Synchronism with mark synchronisation
Overview of the technical documentation for Servo Drives 9400
2LEDS94TA10040xxxx EN 1.1 - 10/2008
Overview of the technical documentation for Servo Drives 9400
Project planning, selecting & ordering Legend:
9400 Hardware Manual Printed documentation
Catalogue / electronic catalogue (DSC - Drive Solution Catalogue) Online documentation
(PDF/Engineer online help)
Mounting & wiring Abbreviations used:
MA 9400 StateLine/HighLine BA Operating Instructions
MA for communication module KHB Communication Manual
MA for extension module MA Mounting Instructions
MA for safety module SW Software Manual
MA for accessories
MA for remote maintenance components
Parameter setting
BA keypad
SW for Lenze »Engineer« software
SW for controller (9400 StateLine/HighLine)
SW for regenerative power supply module
KHB for communication module
SW for extension module
SW for safety module
SW for Lenze technology application ÍThis documentation
SW 9400 function library
Configuring
SW for Lenze »Engineer« software
SW for controller (9400 HighLine)
KHB for communication module
SW for extension module
SW for safety module
SW for Lenze technology application ÍThis documentation
SW 9400 function library
Commissioning of the drive
Commissioning guide
SW for controller (9400 StateLine/HighLine)
Remote Maintenance Manual
Networking
KHB for communication medium used

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9400 Technology applications | Synchronism with mark synchronisation
Contents
Contents
1 About this documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Conventions used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Definition of notes used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Brief description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Synchronisation of the drives via a master angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Virtual master/real master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Transmission of the master angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Speed or angular synchronism? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Rail or cascade structure?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.6 Master or actual value transfer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.7 Absolute or relative master angle processing? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.8 Functions with synchronisation via the electrical shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.9 Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.9.1 Electronic gearbox with virtual master. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.9.2 Electronic gearbox with real master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.9.3 Electronic gearbox as cascade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.9.4 Tighten the web via trimming function with cascade . . . . . . . . . . . . . . . . . . . . . . 18
3.9.5 Relative synchronism with mark synchronisation and virtual master . . . . . . . 19
3.9.6 Relative synchronism with mark synchronisation and real master . . . . . . . . . . 20
4 Parameter setting & configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Basic signal flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 Assignment of the I/O terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.1 Setpoint and control signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.2 Actual value and status signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3 Machine parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.3.1 Master axis (master shaft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.2 Slave axis (machine axis). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4 Selection of master value source and output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.1 Master value source: Virtual master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.2 Master value source: Digital frequency input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.4.3 Master value source: Bus system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9400 Technology applications | Synchronism with mark synchronisation
Contents
4LEDS94TA10040xxxx EN 1.1 - 10/2008
4.5 "Synchronism" mode" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5.1 Master value processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.5.2 Mark synchronisation (master value) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.5.3 Virtual clutch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.5.4 Master value trimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.5.5 Setpoint processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.5.6 Mark synchronisation (setpoint) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.6 "Homing" mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.7 "Manual jog" mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.8 "Positioning" mode" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.9 Quick stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.10 Limiter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.11 Brake control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.12 Signal configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.12.1 Drive and motor interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.12.2 Output ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.13 Application error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

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9400 Technology applications | Synchronism with mark synchronisation
Contents
4.14 Parameterisable function blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.14.1 ApplicationError . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.14.2 ClutchElectricalShaft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.14.3 ClutchStopPosition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.14.4 CompareTPDiffShaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.14.5 CompareTPDiffTool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.14.6 ConversionShaftToTool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.14.7 DisplayClutchSpeed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4.14.8 ElectricalShaftData . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.14.9 ElectricalShaftVal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.14.10 FollowErrorHysteresis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.14.11 FollowErrorLimit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.14.12 HomingSetPosition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.14.13 HystTPDiffShaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.14.14 HystTPDiffTool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.14.15 LimitTPDiffShaft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.14.16 LimitTPDiffTool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.14.17 MarkSynchronizationShaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.14.18 MarkSynchronizationTool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.14.19 MonitFollowError. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.14.20 MotionBusIn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.14.21 OverrideProfile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
4.14.22 ShaftStartPosition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.14.23 ToolControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.14.24 TouchProbePositionShaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
4.14.25 TouchProbePositionTool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
4.14.26 Trimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.14.27 TrimmingOffsetAdjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4.14.28 Virtual_Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Your opinion is important to us. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

9400 Technology applications | Synchronism with mark synchronisation
About this documentation
6LEDS94TA10040xxxx EN 1.1 - 10/2008
1 About this documentation
This documentation contains information about the technology application "Synchronism
with mark synchronisation" for the Servo Drives 9400 series.
The information in this documentation applies to:
The technology application can be used with the following controllers:
Target group
This documentation is directed at qualified personnel according to IEC 364.
Document history
Note!
This documentation supplements the mounting instructions supplied with the
controller, the hardware manual and the software manual for the controller.
The Mounting Instructions contain safety information which must be observed!
Technology application Appl. ID Required runtime software licence
Synchronism with mark synchronisation 100402202 Motion Control HighLevel or higher
Synchronism with mark synchronisation
MotionBus
100402102 Motion Control HighLevel or higher
Product series Type designation From hardware
version
From software
version
9400 Servo Drives E94AxHExxxx PD 1.35
Version Description
1.0 04/2007 TD05 First edition
1.1 10/2008 TD05 New subchapter "Parameterisable function blocks"

EDS94TA10040xxxx EN 1.1 - 10/2008 L7
9400 Technology applications | Synchronism with mark synchronisation
About this documentation
Conventions used
1.1 Conventions used
This documentation uses the following conventions to distinguish between different types
of information:
Type of information Writing Examples/notes
Numbers
Decimal separator Point The decimal point is always used.
Example: 1234.56
Text
Program name » « The Lenze PC software »Engineer«...
Window pane Italics The Message window... / the Options dialog box...
Control element Bold The OK button... / The Copy command... / The
Properties tab... / The Name input field...
Sequence of menu
commands
If the execution of a function requires several
commands, the individual commands are separated
by an arrow: Select FileOpen to...
Keyboard command <Bold> Use <F1> to open the Online Help.
If a command requires a combination of keys, a "+" is
placed between the key symbols:
Use <Shift>+<ESC> to...
Program listings Courier IF var1 < var2 THEN
a = a + 1
END IF
Keyword Courier bold
Hyperlink Underlined Optically highlighted reference to another topic. It is
activated with a mouse click in this online
documentation.
Symbols
Page reference (C7) Optically highlighted reference to another page. It is
activated with a mouse click in this online
documentation.
Step-by-step instructions MStep-by-step instructions are indicated by a
pictograph.

9400 Technology applications | Synchronism with mark synchronisation
About this documentation
Definition of notes used
8LEDS94TA10040xxxx EN 1.1 - 10/2008
1.2 Definition of notes used
The following signal words and symbols are used in this documentation to indicate
dangers and important information:
Safety instructions
Layout of the safety instructions:
Application notes
Danger!
(characterises the type and severity of danger)
Note
(describes the danger and suggests how to avoid the danger)
Pictograph Signal word Meaning
Danger! Danger of personal injury through dangerous electrical voltage
Indicates an impending danger that may lead to death or severe personal injury
if the corresponding measures are not taken.
Danger! Danger of personal injury through a general source of danger
Indicates an impending danger that may lead to death or severe personal injury
if the corresponding measures are not taken.
Stop! Danger of material damage
Indicates a potential danger that may lead to material damage if the
corresponding measures are not taken.
Pictograph Signal word Meaning
Note! Important note for trouble-free operation
OTip! Useful tip for easy handling
FReference to another document

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9400 Technology applications | Synchronism with mark synchronisation
Brief description
2 Brief description
The technology application "Synchronism with register formation and mark
synchronisation" serves to implement a high-precision angular synchronism between the
drives in the system.
rThanks to a free adjustable position resolution of up to 24 bits per motor revolution a
very good synchronism result is achieved so that applications with direct drive can be
resolved with high precision.
rThe ratio can be freely adjusted, the values are input in the form of a fraction
(numerator/denominator) with 32 bit resolution.
rThe master value can be specified either by a "Virtual master", or via a bus system or the
digital frequency extension module. It is selected from the Application parameter tab
via the Master value source list field (C03052).
rThe master value transmission (high speed stability) is preset. The actual values can be
transmitted by the corresponding selection in the list fields Master value output
(C3054/1, C3054/2, C3197).
Functions
rVirtual master with inching, handwheel and reduced speed.
rConditioning of the master value (master shaft) with master value scaling, register
generation, stretch factor, reversal of rotation direction, and mark synchronisation via
profile generator.
rVirtual clutch with emergency stop and basic speed
rTrimming function via profile generator.
rConditioning of the setpoint (machine axis/tool) with setpoint scaling, register
generation, and mark synchronisation via profile generator.
rAdditional operating modes for activating the basic drive functions "Homing", "Manual
jog (inching)" and "Position override function".
rSupport of the basic drive functions "Quick stop" and "Limiter".
rFollowing error monitoring.
rOptional control of a holding brake.
Application range
rPrinting units
rAsynchronous cross cutters
rPerforating machines
rInsetters
rVibrating drives
rLine drives
rLabelling machines

9400 Technology applications | Synchronism with mark synchronisation
Brief description
10 LEDS94TA10040xxxx EN 1.1 - 10/2008
Required license/delivery
rLicense stage Motion Control HighLevel or higher required.
rThe technology application can be selected in the »Engineer« application catalog.

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9400 Technology applications | Synchronism with mark synchronisation
Introduction
Synchronisation of the drives via a master angle
3 Introduction
The following subchapters provide information on the electrical shaft.
3.1 Synchronisation of the drives via a master angle
By coupling the drives via a master angle the positions are firmly allocated to each other
like a mechanical shaft.
rA drive with a virtual master or a real master (encoder) is able to create the master
angle and transmit this to the other drives which follow this master angle.
Advantages of this type of synchronisation
rThe communication between the drives is very simple. A time-consuming evaluation of
the status signals of each drive and the control signals to be generated from it for each
single drive is not required.
rDue to the flexible electronics trimming functions can be carried out very easily. Thus,
motion sequences in machines can be easily synchronised and optimised.
rA variation of the master angle speed changes the number of cycles of the machine.
The drives keep the position allocation.

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Virtual master/real master
12 LEDS94TA10040xxxx EN 1.1 - 10/2008
3.2 Virtual master/real master
Virtual master
[3-1] Example "Virtual master" (with master value transmission via digital frequency extension module)
Real master
[3-2] Example "Real master" (with master value transmission via digital frequency extension module)
rIn an interconnection, a drive takes
over the task of the (virtual) master
and is the first slave drive at the same
time.
rThe master value created in the TA by
the "Virtual master" function is
transmitted via a bus system or the
digital frequency output to the other
slave drives.
d vR
i
v
Virtual master /
Slave 1
X10: DFout
rThe master value for a slave drive can
be also specified by a real master (e.g.
external encoder).
rThe master value can be specified e.g.
via the digital frequency input of the
master frequency extension module or
a bus system.
rThe master value (possibly conditioned
in the TA) by the "Virtual master"
function is transmitted via a bus
system or the digital frequency output
to the other slave drives.
dvd v
R1 R2 12
i1i2
v1v2
X10: DFout
Real master/
Slave 1
X9: DFin

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9400 Technology applications | Synchronism with mark synchronisation
Introduction
Transmission of the master angle
3.3 Transmission of the master angle
The master value/angle can be transmitted via the following transmission media:
rDigital frequency (simulation of an incremental encoder)
rSystem bus (CAN)
rETHERNET Powerlink
The transmission medium is selected according to the criteria listed in the below table:
3.4 Speed or angular synchronism?
The decision whether to use a speed or angular synchronism mainly refers to the TA
"Electronic gearbox".
Angular synchronism
Use the angular synchronism if the material is not able to absorb any force and no
remaining positional variation must be available. Please note that a position controller
always causes additional trouble in a track since disturbances and reference value
variations must be compensated exactly.
Speed synchronism
Use the speed synchronism if the material is able to absorb force which ensures a better
concentricity.
3.5 Rail or cascade structure?
Rail structure
All drives obtain the same master value/master angle.
Transmission medium
Criterion Digital frequency System bus (CAN) ETHERNET Powerlink
Network structure Rail or cascade Rail Rail or cascade
Master value/master angle
transmission
Only relative Absolute or relative Absolute or relative
Max. resolution 16 bits/revolution 24 bits/revolution 24 bits/revolution
Cable length Virtually unlimited, but
max. 50 m from drive to
drive.
Depends on baud rate,
number of nodes and
cable cross-section.
With a baud rate of
500 kbits/s the total
cable length is limited to
e.g. 117 metres.
Virtually unlimited, but
max. 100 m from drive to
drive.
Additional hardware required Digital frequency
extension module
(E94AYFLF)
No, interface is already
integrated in
9400 HighLine (CAN on
board).
ETHERNET Powerlink
communication module
(E94AYCEP)
* In preparation; at present 16 bits/revolution

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Master or actual value transfer?
14 LEDS94TA10040xxxx EN 1.1 - 10/2008
Cascade structure
Each drive obtains its own master value/master angle which is created or merely prepared
through the upstream drive.
3.6 Master or actual value transfer?
Master value transmission
The master value transfer results in a much quieter machine running. The mark
corrections, superimposed control functions and disturbances of the drive, however, do
not affect the system.
Actual value transfer
The actual value transfer results in an uneven machine running. Mark corrections,
superimposed control functions and disturbances of the leading drive affect the system.
3.7 Absolute or relative master angle processing?
Absolute master angle processing
All drives have a common fix reference to each other via the position of the master angle.
Relative master value/master angle processing
Stands for a high-precision transmission of the master value. However, there is no firm
reference to the other drives (e.g. in case of a material path each printing roll is
synchronised one by one to the print image).

EDS94TA10040xxxx EN 1.1 - 10/2008 L15
9400 Technology applications | Synchronism with mark synchronisation
Introduction
Functions with synchronisation via the electrical shaft
3.8 Functions with synchronisation via the electrical shaft
The functions of the electrical shaft are built on each other and thus are scalable:
Electronic gearbox
The electronic gearbox represents the simplest function in the DC-bus operation via the
electrical shaft. The function is suited for e.g. material transport or material processing. A
direct synchronism of tools to a material path can be created without direct position
reference or for stretching machines with adjustable stretching ratio.
Absolute synchronism
This function is suited for applications with continuously rotating tools (e.g. groove
cylinder), which are fed with material in a fixed machine cycle and for which several tools
have to be synchronised to each other.
Relative synchronism (with mark synchronisation)
This function is suited for processing continuous material in the form of a material web.
Here the tools (e.g. pressure cylinders) are aligned via marks to e.g. print images which are
located on the web. There must be no risk of collision. We distinguish between "Relative
synchronism with register formation and mark synchronisation" and "Relative
synchronism with register control".
Absolute table synchronism (cam)
Like "Absolute synchronism", although the tools can also perform a non-linear movement.
Relative table synchronism (with mark synchronisation)
Like "Relative synchronism", although the tools can also perform a non-linear movement.
Electrical shaft
Relative table synchronism (cam with mark synchronisation)
Absolute table synchronism (cam)
Relative synchronism (with mark synchronisation)
Absolute synchronism
Electronic gearbox

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Application examples
16 LEDS94TA10040xxxx EN 1.1 - 10/2008
3.9 Application examples
3.9.1 Electronic gearbox with virtual master
[3-3] Electronic gearbox with virtual master (rail)
3.9.2 Electronic gearbox with real master
[3-4] Electronic gearbox with real master (rail)
nVirtual master (and slave 1)
oSlave 2
pElectrical shaft, implemented here via system bus (CAN).
v
i
SlaveMaster/Slave
d v
d vR1 R2
12
i12


System bus
nReal master/slave 1 (digital frequency extension module required)
oSlave 2
pElectrical shaft, implemented here via system bus (CAN).
v
i
SlaveMaster/Slave
d v
dvd v
R1 R2 R3
123
i1i23


System bus


EDS94TA10040xxxx EN 1.1 - 10/2008 L17
9400 Technology applications | Synchronism with mark synchronisation
Introduction
Application examples
3.9.3 Electronic gearbox as cascade
The technology application "Electronic gearbox" is often operated as cascade since
changes of speed/gearbox ratio of an upstream drive also have an effect on the
subsequent drive.
rTypical applications are, for instance, stretching machines, wire drawing machines and
roller mills.
rThere is no position reference between tool and material. However, it may be required
to position the tools for maintenance work.
rThe master speed is transmitted via the digital frequency or ETHERNET Powerlink.
[3-5] Electronic gearbox with real master (cascade)
rThe following applies to the speed of the web in case of a cascade:
nReal master/slave 1
oSlave 2
pDigital frequency cascade (digital frequency extension module required)
i
SlaveMaster/Slave
d v
dvd v
R1 R2 R3
123
i1i23

v1v2v3

Digital
frequency
v3v2 >
v3v2K⋅=

9400 Technology applications | Synchronism with mark synchronisation
Introduction
Application examples
18 LEDS94TA10040xxxx EN 1.1 - 10/2008
3.9.4 Tighten the web via trimming function with cascade
In case a clearance has developed, the web must be "tightened" again. Only then the
machine can be accelerated again via the master. The subsequent slave (cascade structure)
must run along in the set ratio. Thus, the trimming function acts directly before or after the
stretching factor.
[3-6] Trimming function in case of the electronic gearbox as cascade
nReal master/slave 1
oSlave 2 with master value trimming
pSlave 3
qDigital frequency cascade (digital frequency extension module required)
i
SlaveMaster/Slave
d v
dvd v
R1 R2 R4
124
i1i24

v3v4
i
Slave
d vR33
3

v1

Digital
frequency

EDS94TA10040xxxx EN 1.1 - 10/2008 L19
9400 Technology applications | Synchronism with mark synchronisation
Introduction
Application examples
3.9.5 Relative synchronism with mark synchronisation and virtual master
[3-7] Relative synchronism with virtual master (rail)
In case of the relative synchronism with mark synchronisation, there is a position reference
between tool and web, which occurs in each register. For this, a slight correction is
superimposed to the synchronous motion with regard to the web. Such applications are,
for instance, printing machines.
For the mark synchronisation in particular the register r(the cycle of the guiding angle)
and the distance of the sensor sfrom the home position of the tool (distances a2and a3)
are relevant.
nVirtual master (and slave 1)
oSlave 2
pSlave 3
qElectrical shaft, implemented here via system bus (CAN).
rRegister (cycle of guiding angle/guiding angle)
sSensor for mark synchronisation
i
SlaveMaster/Slave
d vR33
i1 3

System bus
v
i
Slave
d vR22
2


d vR11
a2a3



9400 Technology applications | Synchronism with mark synchronisation
Introduction
Application examples
20 LEDS94TA10040xxxx EN 1.1 - 10/2008
3.9.6 Relative synchronism with mark synchronisation and real master
[3-8] Relative synchronism with real master (rail)
nReal master/slave 1 (digital frequency extension module required)
oSlave 2
pElectrical shaft, implemented here via system bus (CAN).
qRegister (cycle of guiding angle/guiding angle)
rSensor for mark synchronisation
i
Slave
d v
dvR1 R3
1
3
i1 3

System bus
v
i
Master/Slave
d vR22
2


a2a3

