gefran ADV200 Series User manual

ADV200
English
ELS2Electrical Line Shaft Application
User Guide
Rev. 0.1 – 21-9-2020
1S9E2EN

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User Guide Electrical Line Shaft for ADV200 Page 2 of 72
Version
Data
Author
Description
0.1.0
01-12-2015
DLG
0.1.1
12-01-2015
DLG
0.1.2
19-04-2016
DLG
0.1.3
21-09-2020
BRI
Add chapters 1.2 and 1.3
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Thank you for selecting this Gefran product.
If you have any information that might help us to improve this manual, please do not hesitate to contact us at
[e-mail].
Before using the product, please read the chapter on safety instructions carefully.
Keep the manual in a safe place and available to technical personnel during the product functioning period.
Gefran Drives and Motion S.r.L. reserves the right to make changes and variations to products, data and dimensions at
any time without notice.
The data indicated are provided for the sole purpose of describing the product and must not be considered as legally
binding characteristics.
All rights reserved.
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User Guide Electrical Line Shaft for ADV200 Page 3 of 72
TABLE OF CONTENTS
1Introduction............................................................................................................................................... 5
1.1 Compatibility Application version / Drive firmware.............................................................................. 5
1.2 Installation ........................................................................................................................................... 5
1.3 Preliminary operations ........................................................................................................................ 5
2General description.................................................................................................................................. 6
3Operating principle................................................................................................................................... 7
3.1 Conditions ........................................................................................................................................... 7
4Master-slave configurations.................................................................................................................... 9
4.1.1 Example of Equal Ranking configuration..................................................................................... 9
4.1.2 Example of Chain configuration................................................................................................. 10
5Functions, Menus and Parameters....................................................................................................... 11
5.1 MAIN Menu ....................................................................................................................................... 11
5.2 MASTER REF menu ......................................................................................................................... 13
5.3 Physical Master (encoder) ................................................................................................................ 13
5.3.1 Encoder input and repetition cards ............................................................................................ 13
5.3.2 Fast Link communication interface ............................................................................................ 13
5.4 Virtual master .................................................................................................................................... 15
5.5 MECH RATIO Menu.......................................................................................................................... 19
5.6 ELS RATIO Menu ............................................................................................................................. 21
5.7 SLIP RATIO Menu ............................................................................................................................ 24
5.8 ENGAGE Menu................................................................................................................................. 26
5.9 PHASE SHIFT Menu......................................................................................................................... 29
5.10 POS LOOP Menu.............................................................................................................................. 32
5.11 HOMING Menu.................................................................................................................................. 33
5.11.1 Homing with encoder index only................................................................................................ 33
5.11.2 Homing with zero sensor and encoder index............................................................................. 34
5.11.3 Homing with zero sensor only.................................................................................................... 37
5.12 JOG Menu......................................................................................................................................... 41
5.13 POSITIONING Menu......................................................................................................................... 42
5.13.1 First positioning after Homing .................................................................................................... 43
5.14 POSITION ERROR Menu ................................................................................................................. 45
5.15 ELS REFERENCES Menu................................................................................................................ 46
6Connection examples ............................................................................................................................ 47
6.1 Chain Configuration: encoder transmission with wired data............................................................. 47
6.2 Equal Ranking Configuration: encoder transmission with wired data............................................... 49
6.3 Encoder transmission with Fast Link ................................................................................................ 51
7Application example – Calculation of Ratio ........................................................................................ 54
8Firmware download procedure ............................................................................................................. 56
9Control diagrams.................................................................................................................................... 58
9.1 ELS Overview.................................................................................................................................... 58
9.2 Master Ref – Generating a Master reference ................................................................................... 59
9.2.1 Virtual Encoder – Generating a virtual encoder......................................................................... 60
9.2.2 Fast Link Encoder – Master encoder data from Fast Link......................................................... 61
9.3 Els Ratio - Selecting Electric Line Shaft Ratio .................................................................................. 62
9.4 Slip Ratio - Selecting Slip %.............................................................................................................. 63
9.5 Engage – Master Engage Function in Ramp Mode.......................................................................... 64
9.6 Engage – Master Engage Function in Recovery Mode .................................................................... 65
9.7 Phase Shift Function ......................................................................................................................... 66
9.8 Pos Loop - Position Loop .................................................................................................................. 67
9.9 Homing – Zero Search Function ....................................................................................................... 68

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User Guide Electrical Line Shaft for ADV200 Page 4 of 72
9.10 Jog Function...................................................................................................................................... 69
9.11 Positioning - Positioning Function..................................................................................................... 70
9.11.1 U.U Definition – Definition of User Units.................................................................................... 71
9.12 Position Error – Position Error Management .................................................................................... 72

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User Guide Electrical Line Shaft for ADV200 Page 5 of 72
1 Introduction
This manual contains all the information necessary for the design, wiring and configuration of a system based
on the ELS2 Electrical Line Shaft application for the ADV200.
Chapter 2 – “General description” contains information on system characteristics and functions.
1.1 Compatibility Application version / Drive firmware
ELS
Drive Firmware
1_4_38_0 7.2.7 and higher
1.2 Installation
To install the application you must have a PC, version 1.6.5 or higher of the Gefran GF eXpress software with
Catalog, the drive RS485 - PCI COM connection kit and the Electrical Line Shaft Application 2file.
The appliction file (APL-ADV200-ELS-fw…-r...exe), is downloadable from the Gefran website at the path:
https://www.gefran.com/en/products/250-adv200-field-oriented-vector-inverter#downloads on APPLICATION
SOFTWARE section.
The application set-up contains an automatic procedure that copies the required files in the specific folders of
the GF Express catalog.
Note! Before running the application installation setup, close any open GF_eXpress sessions.
Through GF Express is possible to use "Download firmware" command on the toolbar.
This command will open a drop-down menu where all the downloadable applications compatible with the
drive fw are listed.
By choosing the desired application, the window "Download firmware" will open with the field: "File to
download" and the indication of all the applications that are compatible with the drive used.
If you have not installed applications (only the PID is installed by default as application 1) Download
Firmware window will be empty. The user will need to manually select the file ". Fl2" to download.
1.3 Preliminary operations
• Check the connections, paying particular attention to shielding (see standard wiring diagrams) in
order to reduce interference to a minimum, especially on encoders.
• Set the IPA 558 Application Select parameter to the application where you wish to load the
“Electrical Line Shaft” application (Application 1 or Application 2).
• If the Electrical Line Shaft Application 2 application firmware is not already installed, download it
using the GF-Express "Download firmware" utility.
• Files called "filename___A1fl2" enable the firmware to be downloaded to Application 1, files named
“filename___A2.fl2” enable the firmware to be downloaded to Application 2.
Note! the ADV200 drive is supplied with the PID application installed in Application 1; to avoid overwriting this
application, we recommend downloading the firmware to Application 2.
• Send a "Save parameter" command.
• Send a "Drive reset" command.
• Open the drive parameters file containing the application parameters (ELS2.gfe).
• Send the “Load default drive values” command from the configurator Parameters menu to load the
default parameters.
• First send a “Save parameter into target” command, then “Drive reset”.

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User Guide Electrical Line Shaft for ADV200 Page 6 of 72
2 General description
The Electric Line Shaft application allows a group of drives to work with a position limit set with to a master
reference. The master position reference can derive from the feedback encoder of a motor, from a line encoder,
or from a specific communication interface.
The slave drives follow the master position reference. The position ratio between master and slaves can be
changed proportionally with the Els Ratio parameters.
In general, the position and target speed of slave axes are defined by the formulas
 = 
 = 
The ELS2 Electric Line Shaft application is supported by firmware version 7.2.7 and later of the ADV200 drive
and by its supply of optional cards for acquisition of encoders and for the Fast Link system bus. Typical
configurations are described in the paragraph “Master-slave configurations.”
Characteristics of the Electrical Line Shaft application for the ADV200:
•No application parameters require saving and subsequent reset to be active.
•Electric line shaft function with position reference from physical master (encoder) or virtual master.
The master position can be transmitted to the slave by repetition cards and encoder input or by Fast
Link fast synchronous bus (optional EXP-FL-XCAN-ADV card). The virtual master is always
transmitted by Fast Link. Chain configurations (each slave is the master for the next slave) or equal
ranking configurations (one master for all slaves) are possible.
•Ratios selectable from defined set. Ratio can be continuously varied (Slip function).
•Engage function to engage in position a master already in rotation and ability to recover phase angle
lost during engagement ramp.
•Phase shift function to change the phase position of the slave with respect to the master while the
slave is engaged to the master.
•Slave position error signal with dual threshold setting (warning, alarm).
•Jog function to drive the slave line shaft independently from the master.
•“Homing” function: slave axis homing function that enables the use of an external sensor, encoder
marker and freeze encoder signal for axis phasing
•“Positioning” function: slave axis incremental positioning function with user-definable trapezoidal
speed profile.

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User Guide Electrical Line Shaft for ADV200 Page 7 of 72
3 Operating principle
Master drive encoder signals are transmitted to the slave drive in order to derive position and speed
information.
Master position and speed are multiplied by the programmed overall ratio to determine its reference position
and speed for the slave.
The speed reference is the system feed-forward component (base reference), while the reference position,
together with actual position information from the slave motor encoder, is used by a PI control whose output,
added to feed-forward, ensures the phase formula (Els Control Mode = Phase).
A control mode setting parameter lets you exclude the PI control for applications that do not require
maintenance of the phase formula (Els Control Mode = Follower).
The overall ratio is expressed by the following formula:
=1
 1 +  100 
where:
•
 =
Els Act Mech Ratio
• : mechanical ratio between Master / Slave (with respect to fast shafts)
•: slip ratio between Slave / Master speeds;
•: slip/correction of 
Figure 1. Basic control diagram
3.1 Conditions
The ELS application is not designed for use with two or more motors mechanically linked to
the same load.
When using the ELS application, use the drive in Flux vector CL control mode (mandatory
condition if phase control is required (ELS Control Mode = Phase).
To prevent drift, the coupling ratio must be known and expressed precisely (gear mechanics);
otherwise, drift can be managed only with external correction/compensation systems.
The Master encoder source cannot be the same used by the Flux vector CL control.

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User Guide Electrical Line Shaft for ADV200 Page 8 of 72
The source of the encoder used for Flux vector CL control cannot be the same used for the Master
encoder. The selection must be static (IPA 5310 Encoder sel src = Null or One).
Configure the drive so that its absolute maximum speed is higher than that of its master to ensure
sufficient operating margin during following, engage transients, or phase corrections. In addition,
speed range with respect to set ratios must obviously be taken into account.
There are no limitations on the use of encoder expansion cards other than those deriving from
combinations allowed by the expansion slots compared to other types of cards (Fieldbus, Fast Link,
IO, etc). For details, see the “ADV200QS Quick installation guide” manual
There are no limitations on the use of fieldbus expansion cards other than those deriving from
combinations allowed by the expansion slots compared to other types of cards (Encoder, Fast Link,
IO, etc). For details, see the “ADV200QS Quick installation guide” manual
There are no limitations on the use of the Fast Link expansion card other than those deriving from
combinations allowed by the expansion slots compared to other types of cards (Encoder, Fieldbus,
IO, etc). For details, see the “ADV200QS Quick installation guide” manual
There are no limitations on the use of I/O expansion cards other than those deriving from combinations
allowed by the expansion slots compared to other types of cards (Encoder, Fieldbus, Fast Link, etc).
For details, see the “ADV200QS Quick installation guide” manual
You cannot assign more than one application function to the same digital input (and/or decomp
bit);
You cannot use Dimension Factor system functions.

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User Guide Electrical Line Shaft for ADV200 Page 9 of 72
4 Master-slave configurations
The electric line shaft function operates with position reference from physical master (encoder) or virtual
master. The master position can be transmitted to the slave by repetition cards and encoder input or by Fast
Link fast synchronous bus (optional EXP-FL-XCAN-ADV card). The virtual master is always transmitted by
Fast Link.
When the virtual master is used, all of the participants are slaves. The advantage of this configuration is that
it eliminates the phase delay between master system and slaves, typical of any system with a physical master.
The virtual master is generated in one of the ADV200 inverters in the system; in all cases, this ADV200 is
considered a slave.
The IPA 11018 Els Master se application parameter is used to select the source for the position reference to
which the slave axis is connected during operation in electrical line shaft mode.
With multi-shaft applications, you can use two different master-slave configurations:
1. Equal Ranking configuration, where the master is the same for all of the slaves
2. Chain configuration, where each slave transfers its position to the next slave
4.1.1 Example of Equal Ranking configuration
In this configuration, the master position is the same for all of the slaves.
Figure 2. Equal Ranking Configuration
The master drive contains a single encoder card to connect the encoder and repeat signals A and B to the
slaves.
The slave drives contain two encoder cards. The feedback encoder of the motor for Flux Vector CL control is
connected to the first card. The signals of the encoder repeated by the master drive, in turn repeated for the
next slave in the chain, are connected to the second card.
The same configuration can be reproduced by using Fast Link communication. In this case, an encoder card
for feedback input and an EXP-FL-XCAN-ADV card to manage Fast Link communication have to be installed
on each drive.

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User Guide Electrical Line Shaft for ADV200 Page 10 of 72
4.1.2 Example of Chain configuration
In this configuration, the master position is brought to the first slave in the chain. The encoder of the first slave
is repeated and brought to the next slave, which becomes the master, and so on.
Figure 3. Chain Configuration
The master drive contains one encoder card to connect the encoder and repeat signals A and B.
If the encoders of the slave motors are digital incremental, a single card with input for dual encoder and
repetition can be used in the slave drives. The drive motor encoder is connected to the first channel of the
cards. The signals repeated by the previous drive are connected to the second channel. The dual encoder
card repeats the signal of the encoder connected to the first channel.
The same configuration can be reproduced by using Fast Link communication. In this case, an encoder card
for feedback input and an EXP-FL-XCAN-ADV card to manage Fast Link communication have to be installed
on each drive.

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User Guide Electrical Line Shaft for ADV200 Page 11 of 72
5 Functions, Menus and Parameters
The following is a list of all of the main functions that the application has to contain as well as their control
parameters.
The name, user type, default, unit of measurement, limits, and access modes are given for each parameter.
Access is indicated as follows:
ERWZ
| | | |______ Writeable only with drive disabled
| | |________ Writeable
| |_________ Readable
|___________ Access in Expert mode
5.1 MAIN Menu
The MAIN menu contains some basic settings for the electric line shaft and operating state monitors
Parameter Name
User type
Value
Unit
Min
Max
Access
11000 Els Control Mode
Enumerative
Phase (def)
Follower
-
-
-
RWZ
Selector for electric line shaft function control mode.
In Phase mode (active by default), the system follows reference master speed with the selected ratio, maintaining the
phase angle. In Follower mode, the system follows reference master speed with the selected ratio, but without controlling
the phase angle.
11002 Els Appl Enable src
Enumerative
One (def)
Dig inp x
Decomp
Dig inp x X
-
-
-
ERWZ
Selector for source of application activation/deactivation command (always active by default).
By means of a digital input or decomp word command, you can control activation/deactivation of the application in order
to use, as an alternative, the drive system functions (for example, potentiometer motor).
Even if the electric line shaft function is deactivated, the virtual master function (if programmed) stays active,
guaranteeing the chain of references to other drives.
11006 Els FastS src
Enumerative
One (def)
Dig inp x
Decomp
Dig inp x X
-
-
-
ERWZ
Selector for source of immediate stop command (function not active by default). Active at low level, starts fast stop
sequence defined by parameter Els FastS behavior.
11008 Els FastS behaviour
Enumerative
Disable (def)
FS
FS & Dis
-
-
-
ERWZ
Selector for fast stop mode run on low level of reference input Els FastS src:
Disable (default): torque to motor is immediately eliminated
FS: stop ramp to speed zero defined by parameter Els FastS Dec Time with maintenance of torque applied
to motor
FS & Dis: stop ramp to speed zero defined by parameter Els FastS Dec Time with maintenance of torque to
motor until speed zero signal (IPA 942 Speed 0 delay)
11010 Els FastS Dec Time
Float
0.10
s
0.01
10
ERW
Fast stop ramp to speed zero.
Corresponds to the time needed to decelerate from the speed set in parameter Speed ref top lim (IPA 670 on
REFERENCES menu) to 0.
11060 Els Enabled dest
Enumerative
Null (def)
Pad from 1 to 16
-
-
-
ERWZ
Selector for destination of Els Enabled mon monitor.

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User Guide Electrical Line Shaft for ADV200 Page 12 of 72
12000 Els Appl Enable mon
Boolean
-
-
-
-
ER
Monitor of state of application enabling.
12002 Els Enabled mon
Boolean
-
-
-
-
R
Monitor of Enabled state, understood as torque applied to motor.
12006 Els FastS mon
Boolean
-
-
-
-
ER
Monitor of state of immediate stop command.
12010 Els Cfg Error Code
Enumerative
No Error
DB access
Enc CL sel
Mst Slv Enc
UU Per Rev
-
-
-
R
Cause of application configuration error:
DB access: system error during access to parameters database at boot-up;
Enc CL sel: IPA 5310 Encoder sel src invalid (only selections Null and/or One allowed);
Mst Slv Enc: Reference master encoder same as Flux Vector CL control, or vice versa;
UU Per Rev: Parameter UU Per Rev at 0;
12012 Els Boot IPA err
Unsigned short
-
-
-
-
ER
IPA that caused DB access configuration error.
12034 Els FSA
Enumerative
Cap.4.4.2
-
-
-
R
FSA machine monitor:
Init: system booting (this state may never be visible because it is very fast).
Not Active: application not active
Disabled: motor unengaged
StandStill: motor in torque. System awaiting commands
FastStop: Fast Stop command active
Jog: Jog command active
Homing: Homing command running
Positioning: Positioning command running
Els Wait: in Engage mode with “recovery,” in presence of “engage” command, indicates wait of “recovery”
command edge
Els Engage: Engage ramp running
Els Recovery: space recovery profile running
Els in Synchro: Engage or Engage with recovery executed; slave axes in synchronism with master
Els Stopping: stop of following of master system
12122 Els Status word
Unsigned Short
Cap.4.4.2
-
-
-
R
Application status word.

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User Guide Electrical Line Shaft for ADV200 Page 13 of 72
5.2 MASTER REF menu
The MASTER REF menu contains parameters for setting the data of the physical master (encoder) and of the
virtual master.
The configuration diagram of the reference Master is shown in the chapter “CONTROL DIAGRAMS” Figure
24. Master Ref, Figure 25. Virtual Encoder and Figure 26. Fast Link encoder.
5.3 Physical Master (encoder)
The encoder can be transmitted to the slaves by using encoder input and repetition cards or via Fast Link
communication bus.
5.3.1 Encoder input and repetition cards
The encoder card for master and slave inverters can be chosen based on the following table:
Option
Description
EXP-DE-I1R1F2-ADV
Incremental digital encoder, 2 freezes, repetition
EXP-DE-I2R1F2-ADV
2 incremental digital encoders, 2 freezes (channel 1), repetition (channel 1)
EXP-SESC-I1R1F2-ADV
Sinus incremental encoder + Absolute SinCos, 2 freeze, repetition
EXP-SE-I1R1F2-ADV
Sinus incremental encoder, 2 freezes, repetition
EXP-EN/SSI-I1R1F2-ADV
Sinus incremental encoder + Absolute Endat, SSI, 2 freezes, repetition
EXP-HIP-I1R1F2-ADV Sinus incremental encoder + Absolute Hiperface, SSI, 2 freezes, repetition
EXP-RES-I1R1-ADV
Resolver, repetition
EXP-ASC-I1R1F2-ADV SinCos absolute encoder, 2 freezes, repetition
5.3.2 Fast Link communication interface
Fast Link is a fast synchronous communication bus that can exchange data among 16 participants, one of
which is defined as master.
The optional EXP-FL-XCAN-ADV Fast Link card is the communication interface for ADV200. See the specific
manual for information on installing and parameterizing the optional card.
The fiber optics connection of the physical support is ring type, and allows both unidirectional and bi-directional
data exchange. The ELS application uses only unidirectional exchange, so the ring does not have to be
closed.
Figure 4. Fast Link Connection

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User Guide Electrical Line Shaft for ADV200 Page 14 of 72
For the Electrical Line Shaft application, the Fast Link card must be installed on all the slave axes and, as a
general rule, also on the master axis; some "mixed" configurations are however possible, for instance if the
master axis position reference comes from an encoder, the first slave axis can receive it using a card with a
double digital encoder input and thus send it via Fast Link to the other slave axes.
Figura 4. shows the Fast Link connection between a master drive and 3 slaves. The Master drive and the
Slave drives are fit with an encoder card and a Fast Link card.
Since each node of the Fast Link network can in turn re-transmit the entire data block received or immediately
replace one or more of the data in that block with its own data, both Equal Ranking and Chain configurations
are possible.
Example of parameterization of drives for electric line shaft in Equal Ranking configuration with physical master
encoder. The Electric Line Shaft application is present only on the slave drives.
See also: Figure 26. Fast Link Encoder.
ELS2 Application
IPA
Drive Master
Drive Slave 1
Drive Slave 2
Drive Slave 3
11018 Els Master Sel - Fast Link Fast Link Fast Link
11020 Els Master PPR - enc. Master pulses enc. Master pulses enc. Master pulses
5702 FL address
1 (Master)
2 (Slave 1)
3 (Slave 2)
4 (Slave 3)
5818 FL bidirectional Disable Disable Disable Disable
5710 FL Sync slave type - Pwm&Ctrl Pwm&Ctrl Pwm&Ctrl
5712 FL N Fwd slave chg - 0 0 0
5730 FL Fwd 1 src E1 virt pos Null Null Null
5732 FL Fwd 2 src E1 virt rev Null Null Null
Equal Ranking Configuration with Fast Link
Note: as shown in the example, Fast Link word configuration must be followed for the transmission of master
data to the slaves. The position “pos” must be transmitted on word 1 and the number of revolutions “rev” on
word 2.
Example of parameterization of drives for electric line shaft in Chain configuration.
See also: Figure 26. Fast Link Encoder.
System data:
Slave 1 and Slave 2 must follow the encoder
Slave 3 must follow physical slave 2
Configuration:
Slave 1 receives pos and rev (position and revolution) data from the master and controls the motor in
electric line shaft. It repeats the data received from the Master (5730 and 5732 = Null) to the next
slaves in the chain.
Slave 2 reads the master pos and rev data repeated by slave 1 and controls the motor in electric line
shaft. It replaces the pos and rev data received from slave 1 with its physical pos and rev data (5730
= E1 virt pos and 5732 = E1 virt rev) and sends them to the next slaves in the chain.
Slave 3 reads the physical pos and rev data of Slave 2 and controls the motor in electric line shaft.

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User Guide Electrical Line Shaft for ADV200 Page 15 of 72
The Electric Line Shaft application is present only on the slave drives.
ELS2 Application
IPA
Master
Slave 1
Slave 2
Slave 3
11018 Els Master Sel - Fast Link Fast Link Fast Link
11020 Els Master PPR - enc. Master pulses enc. Master pulses enc. Master pulses
5702 FL address 1 (Master) 2 (Slave 1) 3 (Slave 2) 4 (Slave 3)
5818 FL bidirectional Disable Disable Disable Disable
5710 FL Sync slave type - Pwm&Ctrl Pwm&Ctrl Pwm&Ctrl
5712 FL N Fwd slave chg - 0 2 0
5730 FL Fwd 1 src E1 virt pos Null E1 virt pos Null
5732 FL Fwd 2 src
E1 virt rev
Null
E1 virt rev
Null
Chain Configuration with Fast Link
Slave 2 could also send its control pos and rev data to Slave 3 (avoiding encoder noise):
IPA 11144 Els Rev Dem dest = Pad 1 (ex.)
IPA 11150 Els Pos Dem dest = Pad 2 (ex.)
IPA 5730 = Pad 2
IPA 5732 = Pad 1
5.4 Virtual master
The Virtual master function is used to simulate rotation of an encoder. This function lets you eliminate all
causes of interference and noise that would otherwise be transferred in links in normal connections to a
physical encoder as well as eliminate the phase shift phenomenon (phase delay of slave motor compared to
master based on control system cycle time and master speed).
When the Virtual master is used, the ELS application is loaded on all drives and all of them are slaves of the
virtual encoder generated by one of the drives in the system.
Data from the drive generating the Virtual master is transmitted to the other drives in the system via Fast Link.
The drive where Fast Link is generated reads the Virtual master data with a delay cycle equal to the time for
data transmission to the bus in order to align it to all other system drives.
To activate the Virtual master, set the MASTER REF menu: 11018 ELS Master sel = Virtual Enc.
A series of additional parameters and commands lets you control the number of pulses generated, as well as
the start, direction, accelerations and target speed of the virtual encoder. The generated speed profile is
trapezoidal.
Transmission of the virtual encoder data to the slaves in the chain passes through the ADV200 drive PAD
functions. PADs are general-use variables that are used for data exchange among the components of a Bus
system, and can therefore be compared to PLC variables. For more information, see “ADV200 Description of
functions and parameters list.”
A slave drive of a physical encoder CANNOT generate a virtual encoder for other slave drives.

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User Guide Electrical Line Shaft for ADV200 Page 16 of 72
Figure 5. Configuration with Virtual encoder and Fast Link
Example of parameterization of drives for electric line shaft in Equal Ranking configuration with Virtual
master. The Electric Line Shaft application is present on all of the drives.
See also: Figure 25. Virtual Encoder.
ELS2 Application
IPA
Slave 1
Slave 2
Slave 3
Slave 4
Els Master Sel
Enc virtuale
Fast Link
Fast Link
Fast Link
Els Master PPR 1024 1024 1024 1024
11108 Els Master pos dest Pad 1 - - -
11110 Els Master rev dest Pad 2 - - -
5702 FL address 1 (Master) 2 (Slave 1) 3 (Slave 2) 4 (Slave 3)
5818 FL bidirectional Disable Disable Disable Disable
5710 FL Sync slave type - Pwm&Ctrl Pwm&Ctrl Pwm&Ctrl
5712 FL N Fwd slave chg - 0 0 0
5730 FL Fwd 1 src Pad 1 Null Null Null
5732 FL Fwd 2 src
Pad 2
Null
Null
Null

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User Guide Electrical Line Shaft for ADV200 Page 17 of 72
Parameter Name
User type
Value
Unit
Min
Max
Access
11018 Els Master Sel
Enumerative
Encoder 1
Encoder 2 (def)
Encoder 3
Fast Link
Virtual Enc
-
-
-
RWZ
Selector for source of reference master. By selecting Virtual Enc, the reference master of the drive becomes a virtual
encoder generated by the application itself and is available to the next slaves in the chain.
11020 Els Master PPR
Unsigned short
1024
ppr
ERWZ
Pulses of the reference master encoder. The parameter must be set when Els Master Sel = Fast Link or Virtual Enc.
11098 Els Enc V Max Speed
Float
2000
rpm
50
32000
ERW
Maximum speed generated by virtual master.
11100 Els Enc V Speed
Float
0
rpm
ERW
Speed reference of virtual master.
11102 Els Enc V Acc Time
Float
1.00
s
0.01
10
ERW
Acceleration ramp from 0 to Els Enc V Max Speed.
11104 Els Enc V Dec Time
Float
1.00
s
0.01
10
ERW
Deceleration ramp from Els Enc V Max Speed to 0.
11106 Els Enc V Ovr src
Enumerative
Null (def)
Analog input x
Analog input xX
-
-
-
ERWZ
Selector for source of speed reference override of virtual encoder.
If other than Null, you can (via analog input) modulate the speed reference from -Els Enc V Speed to Els Enc V Speed
between the top and bottom system limits of the selected input.
Note: with the speed override function you can invert the direction of rotation of the master without having to use the
inversion command.
11108 Els Master Pos dest
Enumerative
Null (def)
Pad from 1 to 16
-
-
-
ERWZ
Selector for destination of monitor of virtual position of reference master Els Master Pos mon.
11110 Els Master Rev dest
Enumerative
Null (def)
Pad from 1 to 16
-
-
-
ERWZ
Selector for destination of monitor of virtual revolutions of reference master Els Master Rev mon.
11112 Els Enc V Run Fw src
Enumerative
Null (def)
Dig inp x
Decomp
Dig inp x X
-
-
-
ERWZ
Selector of source of Run Forward command to generate speed of virtual encoder (active on level).
If activated simultaneously with the Run Reverse command, the speed of the virtual encoder remains 0.
If activated without the Run Reverse command, the speed of the virtual encoder goes to ramp at Els Enc V Speed.
If activated in the presence of the Run Reverse command, it has no effect on the current command.
11114 Els Enc V Run Rv src
Enumerative
Null (def)
Dig inp x
Decomp
Dig inp x X
-
-
-
ERWZ
Selector of source of Run Reverse command to generate speed of virtual encoder (active on level).
If activated simultaneously with the Run Forward command, the speed of the virtual encoder remains 0.
If activated without the Run Forward command, the speed of the virtual encoder goes to – Els Enc V Speed.
If activated in the presence of the Run Forward command, it has no effect on the current command.
12014 Els Master Rev mon
Long
-
cnt
-
-
R
Monitor of number of virtual revolutions of reference master encoder.
12016 Els Master Pos mon
Long
-
-
-
-
R
Monitor of virtual position in encoder rev of reference master.
12018 Els Master Speed mon
Float
-
rpm
-
-
R
Monitor of speed of reference master (unfiltered).

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User Guide Electrical Line Shaft for ADV200 Page 18 of 72
12054 Els Enc V Run Fw
mon
Boolean
-
-
-
-
ER
Monitor of state of Run Forward command of virtual encoder.
12056 Els Enc V Run Rv
mon
Boolean
-
-
-
-
ER
Monitor of state of Run Reverse command of virtual encoder.
12058 Els Enc V Ovr mon
Float
-
%
-
-
ER
Monitor of percentage of override of reference speed of virtual encoder.

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User Guide Electrical Line Shaft for ADV200 Page 19 of 72
5.5 MECH RATIO Menu
The Electric Line Shaft application lets you follow a Master drive in phase with a relation expressed by the
following equation:  = 
In which the overall relation is defined as:
=1
 1 +  100 
where:
•
 =
Els Act Mech Ratio
•: mechanical ratio between Master / Slave (with respect to fast shafts)
•: slip ratio between Slave / Master speeds;
•: slip/correction of 
The Mech ratio is the ratio of rotations of the fast shafts (motor shafts) of the master to the slave to obtain the
same speed on the slow shafts. This value is derived from their respective kinematic chains. Once the
mechanical ratio (Mech ratio), is defined, Ratio0els will immediately indicate the ratio/slip between the
positions/speeds of the slow slave shafts with respect to the master.
Figure 6. Relation between ratios
The overall mechanical ratio is defined as follows:
=  

The many types of kinematic chains can be grouped in two categories:
1. Gear mechanics
2. Non-gear mechanics
Drift can be prevented only with a type 1 kinematic chain because the mechanical ratio can be
expressed as a fraction; otherwise, drift can only be limited with external compensation systems.
E1 E1 RIP
Master
M
EGear
box
Motor shaft
Slow shaft
E1 E1 RIP
Slave
M
E
E2
Gear
box
Motor shaft
Slow shaft
Master mechanical ratio
Slave mechanical ratio
Ratio Els

_____ _
User Guide Electrical Line Shaft for ADV200 Page 20 of 72
Parameter Name
User type
Value
Unit
Min
Max
Access
11022 Els Mech Ratio
Float
1.000
-
-200
+200
RWZ
Ratio of number of mechanical revs of fast Master shaft (motor) to number of mechanical revs of fast Slave shaft (motor).
This parameter has to be set in case of non-finite mechanical ratios. Otherwise, you can maintain default value = 1
11024 Els Mech Ratio Mul
Long
1
-
1
32000
RWZ
Multiplier of Els Mech Ratio.
This parameter has to be set in case of finite mechanical ratios. It indicates the number of revs of the fast reference
master shaft.
11026 Els Mech Ratio Div
Long
1
-
1
32000
RWZ
Divisor of Els Mech Ratio.
This parameter has to be set in case of finite mechanical ratios. It indicates the number of revs of the fast slave shaft
compared to the master revs set in Els Mech Ratio Mul.
12030 Els Act Mech Ratio
Float
-
-
-
-
R
Monitor of value of mechanical ratio used, equivalent to

