Technosoft 2014
20
iPOS4808 MX Technical Reference
3. Position, speed or torque control of a
brushless AC
linear motor
with an
incremental
sine/cosine encoder
. The brushless motor is vector controlled like a permanent magnet
synchronous motor. It works with
sinusoidal
voltages and currents. Scaling factors take
into account the transmission ratio between motor and load (rotary or linear). Therefore,
the motion commands (for position, speed and acceleration) expressed in SI units (or
derivatives) refer to the load, while the same commands, expressed in IU units, refer to
the motor.
Figure 2.3.
Brushless AC linear motor. Position/speed/torque control.
Sine/cosine incremental encoder on motor
4. Position, speed or torque control of a
brushless DC
rotary
motor
with
digital Hall
sensors
and an
incremental quadrature encoder
on its shaft. The brushless motor is
controlled using Hall sensors for commutation. It works with rectangular currents and
trapezoidal
BEMF voltages. Scaling factors take into account the transmission ratio
between motor and load (rotary or linear). Therefore, the motion commands (for position,
speed and acceleration) expressed in SI units (or derivatives) refer to the load, while the
same commands, expressed in IU units, refer to the motor.
Figure 2.4.
Brushless DC rotary motor. Position / speed / torque control.
Hall sensors and quadrature encoder on motor.
5. Position, speed or torque control of a
brushless AC
linear motor
with an
incremental
quadrature linear encoder
on the track. The brushless motor is vector controlled like a
permanent magnet synchronous motor. It works with
sinusoidal
voltages and currents.
Scaling factors take into account the transmission ratio between motor and load (linear or
rotary). Therefore, the motion commands (for position, speed and acceleration) expressed
in SI units (or derivatives) refer to the load
1
, while the same commands, expressed in IU
units, refer to the motor.
1
Motion commands can be referred to the motor by setting in EasySetUp a linear to linear transmission with ratio 1:1
Summary of Contents for iPOS4808 MX Series
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