Specifications

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The new drive
behind your success
FR-A700 /// Supreme drive performance /// FR-A700 /// Supreme drive performance /// FR-A700 /// Supreme drive performance /// FR-A700 /// Supreme drive performance /// FR-A
high starting torque. As such, the FR-A700
is capable of achievements which used to
be the reserve of high-end d.c. or servo
systems.
쐽
Autotuning
Precise motor data forms the basis for opti
-
mum control of the vector drive without an
encoder. The new generation of inverters
comes with an autotuning function which
identifies all the parameters required for
the motor model in less than one minute,
even if the motor is not running.
Sufficient memory is available to store data
records for up to two motors. Online auto
-
tuning offers the facility to automatically
record and offset changes to the data in
operation, e.g. caused by changes in
temperature.
Another tuning process (easy gain tuning)
simplifies optimisation of the speed regula-
tor. The sequential response of the motor is
automatically detected and the control
parameters adjusted for optimum perfor
-
mance. Labour-intensive manual tuning of
the control parameters is a thing of the past.
쐽
Economy-rate positioning
The FR-A700 can also be used for positio
-
ning in conjunction with the “Closed Loop
Vector Control”. The control in this case is
taken care of by a sequencer, digital inputs
or a network.
Intelligent functions
for any application
쐽 Sensorless vector control (RSV)
Equipped with their new RSV function
(Real Sensorless Vector Control), Mitsubishi
Electric frequency inverters have the ability
to control the speed and torque of a
single-phase a.c. motor without an enco
-
der. The result is maximum performance
across the full speed range in terms of
dynamic response, precision and control.
The motor thus sustains optimum dynamic
speed characteristics, smooth rotation and
PLC functions
The PLC functions integrated in the
FR-A700 mean optimum tailoring to the
requirements of the user. The PLC offers
direct access to all the drive parameters
and will, on request, undertake plant mana
-
gement as a stand-alone control and moni
-
toring unit.
Mitsubishi Electric’s programming software
GX Developer is a straightforward tool for
programming the PLC functions.
Network-capable
The FR-A700 is highly versatile in terms of
communication options. It is supplied as
standard with an integrated USB port and a
link to Modbus RTU. Other optional net
-
work connections include Profibus/DP,
CC-Link, Ethernet and CANopen right
through to the motion control network
SSCNET III.
Integration in
positioning systems
All the frequency inverters in the FR-A700
series can be used with servo drives within
a motion system. Connection is simple
using Plug and Play via SSCNET III. The
FR-A700 can even work as a leading axis
drive. As such, there is no reason why the
drives cannot be integrated further in
existing control concepts.
Self-diagnosis for
easy maintenance
Frequency inverters in the FR-A700 range
monitor their own operational reliability.
The innovative diagnosis and maintenance
functions monitor all the components
which are subject to wear and issue prior
warning when due. Precautions are there
-
fore in place to prevent failure and long
downtimes.
Many protective mechanisms and over-
load functions guarantee fault-free opera-
tion and therefore supreme availability
and operational reliability.
Extended
service life
Mitsubishi Electric frequency inverters are
noted for their durability. The FR-A700 also
sets the benchmark in terms of product
life. It is designed to last for over 10 years
giving an investment which pays time after
time.
Fourfold overload
capacity
Many manufacturers of frequency inver
-
ters have specified various overload rating
classes for their products - but rarely more
than two. The FR-A700 is designed for no
less than four overload ranges! This makes
it easier to select the best frequency inver
-
ter for any application.
Convenient
operation
The FR-DU07 parameterising unit, com
-
plete with digital dial and 7-segment LED
display, is supplied with the product for
manual access to all parameters and opera
-
ting modes. Other parameter units can be
supplied on request.
The FR Configurator parameter setting
software provides a number of handy
functions. These include a graphical
machine analysis tool for optimising the
drive system or an automatic conversion
tool for a smooth changeover from a previ-
ous model to the latest generation of
machines.
The FR-A700 has an integrated USB inter-
face for connecting a PC or notebook.
FR-A700: The wide power zone, of 0.4 to 630 kW’s, is covered by range of conveniently sized units.
1200
1000
800
600
400
200
1
2
3
Time t
Speed
Suspended loads can be positioned accurately thanks
to motor and encoder feedback.
Tuning made simple
Without tuning (blue line) there are significant varia
-
tions in the setpoint speed, whereas there is a great re
-
duction in overshoot with tuning (green line).
Clear user interface layout with project navigator
for rapid programmiung