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 Standard Gearmotors
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Bus positioning
The bus positioning application module can position with a
variable number of target positions.
Features
No matter how large the variety of applications for table
positioning, the wide range of functions provided by the
application module provides the right solution for every
task.
- Any number of target positions can be defined and
selected by means of a fieldbus/system bus.
- The positioning speed can be selected as required
using the bus.
- Software limit switches can be defined and evaluated.
- Either incremental encoders or absolute encoders can
be evaluated as external encoders.
- Simple connection to the master controller (PLC).
- Guided startup and diagnostics.
Advantages at a glance:
- User-friendly user interface.
- Users only need to enter the parameters for bus
positioning (reduction ratios, speeds, diameters).
- Guided parameter setting process instead of
complicated programming.
- Monitor mode for optimum diagnostics.
- Users do not need any programming experience.
- Rapid familiarization with the system.
Drive application: Bus positioning and extended bus
positioning
The bus positioning module is suitable for positioning
applications with a variable number of target positions.
"Bus Positioning" is available in two versions -
complete or reduced function:
- "Bus Positioning" with three (3) process
data and variable preset of target position and speed.
- "Extended Positioning via Bus" with six (6)
process data and variable preset of target position,
speed, and ramp.
Bus positioning applications can be found in the following
sectors:
- Materials handling
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- Trolleys
- Hoists
- Rail vehicles
- Logistics
- Palletizing / handling
The solution with MOVIDRIVE®
Set parameters instead of programming
Use the application module “Bus Positioning” or
“Extended Positioning via Bus” (in the application
version, it is a component of the MOVITOOLS®
MotionStudio software for MOVIDRIVE®). A
user-friendly interface guides you through the process of
setting the parameters. All you have to do is enter the
parameters you need for your application: for example,
reduction ratios, travel speeds, driving diameters, and
target positions. The application module uses this
information to create the control program and loads it into
the inverter.
Wide range of functions
- No matter how large the variety of applications for
table positioning, the wide range of functions provided
by the application module provides the right solution
for every task.
- Any number of target positions can be defined and
selected by means of a fieldbus/system bus.
- The positioning speed can be selected as required
using the bus.
- Software limit switches can be defined and evaluated.
- Either incremental encoders or absolute encoders can
be evaluated as external encoders.
- Simple connection to the master controller (PLC).
- Guided startup and diagnostics.
The advantages at a glance
- User-friendly user interface.
- Users only need to enter the parameters for bus
positioning (reduction ratios, speeds, diameters).
- Guided parameter setting process instead of
complicated programming.
- Monitor mode for optimum diagnostics.
- Users do not need any programming experience.
- Rapid familiarization with the system.
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Flying saw
The flying saw: setting parameters instead of programming
Drive application: Flying saw
Endless material must be cut to length - the classic job for
the "flying saw." Before the cutting process
starts, the saw must be synchronized, during the cutting
process, the saw must move synchronously with the material
and, at the end, it must return to the start position to
begin the cycle again.
The "Flying Saw" module can also be used to
realize other applications with a similar cycle, for
example, synchronous material transportation, filling
stations or "flying punches."
There are two ways of generating the start signal for
synchronization:
The solution with MOVIDRIVE®
Set parameters instead of programming
The SEW “Flying Saw” application module is a component
of the MOVIDRIVE® software package MOVITOOLS®
MotionStudio. The user-friendly interface guides you through
the process of entering the parameters. Only those
parameters required for the specific application, such as
cutting lengths and engaging distance, must be entered.
The application module uses this information to create the
control program, then loads it onto the inverter. MOVIDRIVE®
then takes over the entire motion control.
Wide range of functions
No matter how large the variety of applications for your
"flying saw," the wide range of functions provided
by the application module provides the right solution for
every task.
- Choice of fieldbus or terminal control.
- Specification of different cut lengths via terminals
or fieldbus.
- Cut edge protection or singling using the "Draw
gap" function.
- Immediate cut function by manual interrupt.
Movement control with IPOSplus®
A significant feature of the MOVIDRIVE® drive
inverter used with the applications modules is the
integrated IPOSplus® positioning and sequence
control system. Based on the specifications, an IPOSplus®
program in MOVIDRIVE® controls the entire
motion sequence with the application module as
machine-oriented as possible.
The advantages at a glance
- User-friendly user interface.
- Only the parameters needed for the application must be
entered.
- Guided parameter setting process instead of
complicated programming.
- Optional cut length control or cut length control with
label sensor.
- During operation, all important data is displayed on
the monitor.
- All movement control is carried out by the IPOSplus®
program in MOVIDRIVE®
- Simple integration into higher-level machine control
systems is possible via fieldbus.
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Crane control
Crane control using parameter settings, not programmed
Drive application: Crane control
Loads need to be lifted and moved in almost all industries
all over the world. For example, on construction sites, at
transshipment stations, in warehouses and in assembly and
production halls.
These loads are lifted and moved by tower and gantry cranes,
trolley traveling winches, hoists and trolleys. The drives
on this machinery must be operated either manually
(ground-controlled) or remotely (radio-controlled). It goes
without saying that required safety instruments such as load
recognition and limit switch controls must also be
installed.
A typical crane control application is the gantry crane. In
this case, crane control can be used not only for the travel
axes but also for the hoist axis. The travel distance on
both travel axes must be limited with a limit switch. In
addition to limit switches, speed reduction switches are
normally installed to reduce the speed towards the end of
the stretch. For safety reasons, limit switches must also be
monitored. Load-controlled speed reduction optimizes
utilization of the power installed on the hoist axis.
The solution with MOVIDRIVE®
Set parameters instead of programming
The drive solution with MOVIDRIVE® is based on
the “Crane Control” application module. The “Crane
Control” application module is part of the MOVITOOLS®
MotionStudio software for MOVIDRIVE® and can be
accessed as soon as the license is purchased. The
user-friendly interface guides you through the process of
setting the parameters. Only those parameters required for
the specific application, such as fixed setpoints, ramps and
speed, must be entered.
The application module uses this information to create the
control program and loads it into the inverter. MOVIDRIVE®
then takes over the entire motion control. Users can also
opt to control the inverter with variable speed selection or
by fixed setpoints.
Wide range of functions
No matter how large the variety of applications for crane
control, the wide range of functions provided by the
application module provides the right solution for every
task.
- 6 fixed setpoints for multi-stage switching
- Variable speed in motor potentiometer mode.
- Switchover option between fixed setpoints and variable
speed regulation during operation.
- Speed reduction and limit switches are monitored.
- Speed is reduced when the speed reduction switches are
reached.
Movement control with IPOSplus®
One of the main MOVIDRIVE® features used in the
application modules is IPOSplus® positioning and
sequence control. Based on the specifications, an IPOSplus®
program in MOVIDRIVE® controls the entire
motion sequence with the application module as
machine-oriented as possible.
Further applications
In addition to gantry cranes, the "Crane Control"
application module can be used for further applications.
Examples are:
The advantages at a glance
- Wide range of functions
- User-friendly user interface
- You only have to enter the parameters needed for the
application
- Guided parameter setting process instead of
complicated programming
- No programming experience required
- Rapid familiarization with the system
- Choice of ground or radio control
- Movement control is carried out completely by the
IPOSplus® program in MOVIDRIVE®
- Limit switch control and load recognition
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Electronic cam
Electronic cam for complex, cyclical motion sequences
Drive application: Electronic cam
In the past, mechanical cam disks were always used for
harmonizing complex movement sequences in cyclical
machinery.
With this method, a centrally driven shaft, the bevel-gear
shaft, ensured synchronous operation of all cam disks. The
speed of this bevel-gear shaft could determine the
production speed of the machine. However, this mechanical
solution is very inflexible and can no longer cope with the
requirements of modern production and processing machines.
As a result, mechanical cam discs in system and mechanical
engineering are increasingly being replaced by
electronically controlled drives called electronic cams.
Electronic cam applications can be found in the following
sectors:
The figure displays a typical example of electronic cam
application. Freshly filled yogurt pots at the end of a
conveyor belt are transferred to an adjacent conveyor belt
for further processing. The tines of the rake are inserted
between the yogurt pots, lifting and transferring them. The
electronic cam can be used to realize a motion sequence
ensuring that the pots are lifted smoothly.
The solution with MOVIDRIVE®
Separate unit series
The solution for the drive application with MOVIDRIVE®
is based on a special software that is integrated into the
"MOVIDRIVE® drive inverter with electronic
cam" unit series. The entire motion sequence is
controlled in the inverter. External control is not required
for the electronic cam.
Electronic cam editor
A user-friendly cam editor will support you during startup.
Using a movement plan, you define the curve profile of the
slave drive based on various movement types. You also have
the option of importing existing cam data. You can use a
physical drive or a virtual master encoder as the master
drive. You can also set application-specific parameters for
the engagement and disengagement phases of the slave drive
using the cam editor. For example, the slave drive can be
engaged as either event-driven or position-based.
Disengaging can also be event-driven or can occur after a
predefined number of cycles.
Optimize curve profile
After you have created the curve, you can represent the
three derivations speed, acceleration, and jerkiness. You
can thus use your PC to optimize the curve profile for
smooth running.
Curve point table
The curve editor generates the curve point table based on
the curve profile. This curve point table is the basis for
the dependence of master and slave drives. You can also
import an existing curve profile in the form of a curve
point table.
Movement control with IPOSplus®
A significant feature of the MOVIDRIVE® drive
inverters that comes into play with the electronic cam is
the integrated IPOSplus® positioning and
sequence control system. An IPOSplus® program in
MOVIDRIVE® controls the entire motion sequence
in MOVIDRIVE® as machine-oriented as possible.
In addition, further system-specific functions can be
controlled with this IPOSplus® program.
The advantages at a glance
- Wide range of functions
- High system flexibility
- User-friendly electronic cam editor
- Import option for curve data
- Optimization of smooth running, maximum acceleration
and oscillation tilt
- Monitor mode for optimum diagnostics
- Virtual encoder can be used as the master encoder
- Either terminal control or fieldbus control
- Units can be linked with the existing standard system
bus
- All movement control is carried out by the IPOSplus®
program in MOVIDRIVE®
- Decentralized concepts can be implemented more easily
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Modulo positioning
Modulo positioning for clocked rotary motions
Drive application: Modulo positioning
Whenever material is transported, for example, in conveyor
or logistic applications, a large number of motion sequences
must be controlled. These are often linear movements in the
form of hoists, trolleys or conveyor belts, and rotary
movements in the form of rotary tables. The rotary movements
of rotary tables or rotary distributors, for example, are
frequently clocked. Conveyor belts, so-called timing belts,
also represent clocked applications.
Rotary tables are a specific drive application. The material
is always clocked one specified angle further for further
processing. Typically, the movement is only performed in one
direction. Rotary distributors are another application. In
this case, the material is distributed among different
positions. Distance-optimized positioning is often required.
The new position is always reached using the shortest route.
The clocked conveyor belt application is similar to the
rotary table. The material on the conveyor belt is always
clocked one specified length further. A complete conveyor
belt cycle corresponds to a 360° movement of a rotary
table.
The solution with MOVIDRIVE®
Set parameters instead of programming
The drive solution with MOVIDRIVE® is based on
the “Modulo Positioning” application module. The
“Modulo Positioning” application module is part of the
MOVITOOLS® MotionStudio software for MOVIDRIVE®
and can be accessed as soon as the license is purchased. The
user-friendly interface guides you through the process of
setting the parameters. Only those parameters required for
the specific application, such as positions, ramps and
speeds, must be entered. The application module uses this
information to create the control program and loads it into
the inverter. MOVIDRIVE® assumes complete
movement control, thus freeing up the machine control. You
have the option of selecting whether the inverter is
controlled by binary input or by fieldbus.
Wide range of functions
No matter how large the variety of applications, the wide
range of functions provided by the "Modulo
Positioning" application module offers the right
solution for every task.
- 16 target positions or step widths can be defined and
selected. Control using the fieldbus also allows you to
define target positions and step widths as variable
values.
- For each of the 16 target positions or step widths,
you can set the travel speed and ramp separately.
- The angle error can be corrected with flying
referencing when the gear unit reduction ratio is an odd
number.
- For a non-positive (= with slip) connection between
the motor shaft and application, an external incremental
encoder can be referenced.
- The application units can be defined as required.
- Automatic calculation of position resolution and
graphical position display.
- Guided, easy-to-follow startup procedure and
diagnostics.
Movement control with IPOSplus®
One of the main MOVIDRIVE® features used in the
application modules is IPOSplus® positioning and
sequence control. Based on the specifications, an IPOSplus®
program in MOVIDRIVE® controls the entire
motion sequence through the application module as
machine-oriented as possible in MOVIDRIVE®.
Further applications
In addition to rotary tables, rotary distributors and timing
belts, the "Modulo Positioning" application module
can naturally be used for further applications. Examples
are:
The advantages at a glance
- Wide range of functions
- User-friendly user interface
- You only have to enter the parameters needed for the
application
- Guided parameter setting process instead of
complicated programming
- No programming experience required
- Rapid familiarization with the system
- Either terminal control or fieldbus control
- Movement control is carried out completely by the
IPOSplus® program in MOVIDRIVE®
- Decentralized concepts can be implemented more easily
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Storage and retrieval system
Storage and retrieval system with cornering capability
Drive application: Storage and retrieval system with
cornering capability
Large quantities are put into storage in a high-bay
warehouse. There are many aisles but the material flow rate
is low. In this case, the storage and retrieval system has
to have cornering capability because it must travel along
many aisles. Cornering capability means that there is a
differential between the front and rear drives, and that
high transverse force during cornering can be avoided by
means of active cornering control. When the front wheel
enters the corner, the rear wheel is still running on the
straight and is decelerated. Then, when the rear wheel
enters the corner, the front one is running on the straight
again. This results in a significant acceleration of the
rear wheel, which may be as much as a factor of 2 or more
depending on the radius and the distance between the axes.
This puts the following requirements on the drive system:
- Load distribution, both wheels are driven
- Slip control
- Cornering capability, electronic differential
Intelligent inverters are needed particularly for cornering
capability. The machine control cannot manage this task.
The solution with MOVIDRIVE®
Electronic differential with active cornering control
The basis for this is that the speed of both wheels is
known. Both wheels of the storage/retrieval system are
driven; the load is shared by both drives. The driving
motors are equipped with an incremental encoder and each one
is supplied by its own inverter.
Communication for success
Both wheels are driven and each one is supplied by its own
MOVIDRIVE® inverter. The inverters are connected
via the system bus (SBus) and via the RS-485 interface. Both
are standard.
- Electronic differential with system bus (SBus)
- Load distribution with the RS-485 interface
Movement control with IPOSplus®
A significant feature of MOVIDRIVE® drive
inverters, the IPOSplus® positioning and
sequence control system, now comes into play. An IPOSplus®
program in MOVIDRIVE® calculates the
setpoint speed of the master drive based on the speed
specification for cornering and the actual speed of both
drive wheels. The slave drive operates with torque control.
The advantages at a glance
- The MOVIDRIVE® units exchange the data for
speed control and load distribution via the system bus
and the RS-485 interface.
- All movement control is carried out by the IPOSplus®
program in MOVIDRIVE®.
- High overhung loads are avoided through the electronic
differential, which ensures safer operation of the
storage/retrieval system.
- Safe traction of the storage/retrieval system through
slip control
- With active cornering control it is possible to
negotiate corners 2.5 to 3 times as quickly
- Safe operation of asynchronous AC motors even in the
field weakening range
- Simple integration into higher-level machine control
systems is possible via fieldbus.
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Table positioning
Table positioning: Frequent in conveyor and logistics
applications
Drive application: Table positioning
Positioning is one of the most common conveyor and logistic
applications, e.g. as used in storage and retrieval units.
Positioning is used wherever material must be moved from one
position to another.
If an application includes up to 32 different target
positions, the MOVIDRIVE® technology version
performs this task using the "Table Positioning"
application module. Movement takes place subject to position
control and the target position is reached to the precise
increment.
Table positioning applications can be found in the following
sectors:
- Materials handling
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- Trolleys
- Hoists
- Rail vehicles
- Logistics
- Palletizing / handling
The solution with MOVIDRIVE®
Set parameters instead of programming
Use the “Table Positioning” application module (in the
application version of the MOVIDRIVE® operating
software MOVITOOLS® MotionStudio). A
user-friendly interface guides you through the process of
setting the parameters. All you have to do is enter the
parameters you need for your application: for example,
reduction ratios, travel speeds, driving diameters and
target positions. The application module uses this
information to create the control program and loads it into
the inverter.
Wide range of functions
No matter how large the variety of applications for table
positioning, the wide range of functions provided by the
application module provides the right solution for every
task.
Choice of control via fieldbus or terminals.
- Up to 32 table positions can be defined and selected.
- The travel speed can be selected for each positioning
movement.
- The ramp can be set separately for each positioning
movement.
- Software limit switches can be defined and evaluated.
- Either incremental encoders or absolute encoders can
be used as external encoders.
- Guided startup and diagnostics.
The advantages at a glance
- User-friendly user interface.
- You only have to enter the parameters required for
table positioning (reduction ratios, speeds, diameters).
- Guided parameter setting process instead of
complicated programming.
- Monitor mode for optimum diagnostics.
- Users do not need any programming experience.
- Rapid familiarization with the system.
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Winding calculator
Winding and unwinding endless material
Drive application: Winding calculator
Winding calculators are used when endless material is
unwound for further processing or rewound after processing.
This may be necessary e.g. in the paper, plastics, textile
or sheet metal industries. It is very important that the
speed of the material transport remains constant. The speed
of the material roll is changed in inverse proportion to its
radius. To prevent the material from tearing, it is wound
smoothly and the tension must be kept constant. The
following description of the drive solution is based on two
unwinders.
- Endless, e.g. in a paper machine. The roll is unwound
without interruption at a constant circumferential
velocity. The radius is calculated by the IPOSplus®
program in MOVIDRIVE®. The speeds n1 and n2
and the diameter d0 of the pull-off roller are known.
- Clocked, for example in a trimmer. The unwinder has to
start and stop cyclically. Clocked further processing
requires special precautions to ensure jerk-free
material transport. One precautionary measure is to
guide the material over a jockey roll, which acts as a
buffer to compensate for the tensile force fluctuations
and load shocks of clocked operation.
The solution with MOVIDRIVE®
Connection via system bus
The MOVIDRIVE® solution assumes that each
unwinder and pull-off roller is driven by its own motor.
Both MOVIDRIVE® inverters are connected with the
standard system bus (SBus). External encoders on the line
can be avoided through the data exchange between the
inverters. The inverter can recognize possible band tearing.
An automatic threader ensures that the process continues as
soon as possible.
Guide with jockey roll
In the case of clocked further processing, the guide around
the jockey roll is extended. The jockey roll acts as a
buffer to compensate for the tensile force fluctuations and
load shocks arising from clocked operation. The position of
the jockey roll is entered with a potentiometer and the
signal is forwarded to the MOVIDRIVE® of the
winder.
IPOSplus®
A significant feature of the MOVIDRIVE® drive
inverter, the IPOSplus® positioning and sequence
control system, now comes into play. It turns the MOVIDRIVE®
into a real winding calculator. An IPOSplus®
program in MOVIDRIVE® calculates the setpoint of
the torque or the setpoint of the unwinder speed based on
the speed of the unwinder and pull-off rollers and the
specified valid tensile force (for example, via the fieldbus
of a PLC).
The advantages at a glance
- The MOVIDRIVE® units exchange the data for
torque control or speed control via the system bus.
- The roll radius is calculated independently in
MOVIDRIVE®. No additional measuring
equipment is required.
- In the application without jockey roll, integrated
torque control, also for standard AC motors with
encoder.
- In the application with jockey roll, integrated PI
controller for speed control for the unwinder.
- All movement control is carried out by the IPOSplus®
program in MOVIDRIVE®.
- Safe operation of asynchronous AC motors even in the
field weakening range.
- Band tearing is recognized and threading help is
started automatically.
- Simple integration into higher-level machine control
systems is possible via fieldbus.
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Constant tension center winder
For absolutely jerk-free winding
Drive application: Constant tension center winder
In many industrial sectors, such as the paper, plastics,
textile or sheet metal industries, materials in continuous,
flexible strip form (web) must be unwound or rewound before
and after processing. To prevent the material from tearing,
winding must be absolutely jerk-free and the tension must be
kept constant.
This constant tension central winder has an unwinder with
two drives: one for the take-up roller and one for the
pull-off roller. Usually, the pull-off roller operates with
speed control, in which case the material is unwound at a
constant web speed. The winder determines the tensile force,
while the speed signal from the pull-off roller functions as
a control signal. In many applications, a drive is not
required for the pull-off roller. It can be replaced by a
master encoder that delivers the master signal for the
winder.
The solution with MOVIDRIVE®
Set parameters instead of programming
SEW offers the “Central Winder” application module as
the comfortable solution for your drive task. This
application module is a component of the MOVIDRIVE®
application software MOVITOOLS® MotionStudio.
The user-friendly interface guides you through the process
of setting the parameters. Only those parameters required
for the specific application, such as fixed diameter and
tension, must be entered. The application module uses this
information to create the control program and loads it into
the inverter. MOVIDRIVE® then takes over the
entire motion control.
This saves a substantial amount of time in the startup
process, and as everyone knows: Time is money.
Extensive range of functions
The functions of the "Central Winder" application
module are divided into four areas:
- Calculation of the roller diameter
- Calculation of the tensile force
- Adjustable winding curve
- Either terminal or fieldbus control
Calculation of the tensile force
The tensile force must be adjusted very accurately for
flawless operation of the winding machine. To achieve this,
the following parameters must be taken into account:
Calculation of the roller diameter
Many winding machines measure winding diameter to determine
and set the correct winding speed. In this case, the
diameter does not need to be measured. The diameter is
calculated by the IPOSplus® program in MOVIDRIVE®.
Wide range of functions
No matter how large the variety of applications for constant
tension central winders, the wide range of functions
provided by the application module offers the right solution
for every task.
- Choice of fieldbus or terminal control
- Web speed and current diameter displayed
- Counter for material length
- Monitoring material tearing
Diagnostics included
During operation, all of the important data is displayed on
the central winder monitor.
Adjustable winding curve
With many materials, it is necessary to reduce the tensile
stress as the winding diameter increases. This can be
regulated using the central winder application module. You
can set the winding characteristics to your requirements
using a user-friendly editor. This is done either in a
freely defined fashion with a table or using a hyperbolic
function.
The advantages at a glance
- User-friendly user interface.
- Only the parameters needed for the application must be
entered.
- Guided parameter setting process instead of
complicated programming.
- The winding diameter is calculated independently in
MOVIDRIVE®. No additional measuring
equipment is required.
- All movement control is carried out by the IPOSplus®
program in MOVIDRIVE®.
- Material tearing is recognized automatically and the
threading help started.
- Simple integration into higher-level control systems
via fieldbus.
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EURODRIVE GEARBOXES |
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Tecnica
Industriale Srl
S.P. 231 Km 1,110 - 70026 Modugno (Ba) - Italy
Tel +39 0805367090 - Fax +39 0805367091
E-mail: info@tecnicaindustriale.it |
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