Technical data

26
Selective Multi-Motor Control (SMMC)
Industrial applications often require a number of
axes to be controlled separately and driven one at
a time in a predefined sequence in which no two
motors operate simultaneously.
In conventional systems of this type, each
individual axis has to be controlled by its own
drive, configured to power its motor for a set time
and then to remain inactive while the control
sequence passes on to the next axes. The process
controller must therefore send each drive its
own set of commands and must also transmit the
necessary reference signals over a corresponding
number of analog ports or network addresses.
This requires a high level of redundancy in system
components, cabling and control software and
results in significant energy consumption.
Agile drives are specially designed to provide
efficient control of complex systems comprising
multiple but non-simultaneous motors. AgilE
drives can handle four separate motors even with
different electrical characteristics, reserving a
dedicated area of memory to the control of each.
The architecture of Agile drives lets you store
simultaneous configurations for all four motors
and control them independently at separate times
according to independent criteria and strategies,
but using the same power hardware.
By using two digital inputs in binary combination
mode, users can activate the drive’s parameter
configuration corresponding to just one of the
four motors, thus excluding the other three.
Thecurrentlyactivecontrolalgorithm(V/Hz,
sensorless vector control, sensorless brushless
motor control) controls the selected motor and
drives it according to the parameter settings in the
corresponding dataset.
Process control
Inverter
Process control
Inverter
Conventional system:
Only the drive controlling the axis to be moved
is activated at any one time, leaving the others
disabled
Agile Selective Multi-Motor Control:
Just one drive is needed to control the motor of
the axis to be moved, leaving the others in rest
mode