© Technosoft 2011 6
IDMx40 Technical Reference
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 2.2. Brushless AC linear motor. Position/speed/torque control. Quadrature encoder on
motor.
3. 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
1
, while the same commands, expressed
in IU units, refer to the motor.
Figure 2.3. Brushless DC rotary motor. Position/speed/torque control. Hall sensors and
quadrature encoder on motor
4. Position, speed or torque control of a brushless DC linear motor with digital Hall sensors
and an incremental quadrature encoder
2
. 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.
1
Motion commands can be referred to the motor by setting in EasySetUp a rotary to rotary transmission with ratio 1:1
2
Available only for the IDMx40 CAN executions
IDMx40
IDMx40
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