Configuration of the feedback

The feedback serves to determine the relative position and velocity for the internal control. Determination of the absolute position is not possible with the feedback.

Operation without feedback is also possible. In this case, the counter-electromotive force of the motor is used as feedback. This operation mode is called "sensorless operation".

Select the feedback according to the requirements of the application.

Feedback

Recommended use cases

No feedback

  • Constant high velocity
  • No positioning tasks

Hall sensors

  • High velocity applications, e.g.:
    • Fans
    • pumps
    • Conveyor belts
  • Coarse positioning tasks

Incremental encoder (factory setting)

Positioning tasks in which high synchronism is required

Incremental encoders and Hall sensors

Configure the feedback as described in the following chapters.

Permissible combinations of feedback and operation mode

Operation mode

Feedback

An incremental encoder

An incremental encoder + Hall sensors

Hall sensors only

No feedback

CSTCA

Yes

Yes

No

No

CST

Yes

Yes 1)

No

No

CSV

Yes

Yes

Yes

Yes

CSP

Yes

Yes

Yes

Yes

1) Enable with 0x8010:54 Feature bits = 0x100

Further Information