Configuring the sensors
The parameters (configuration, alignment, etc.) of each feedback are determined by Auto setup and stored in the following objects:
|3380h||Sensorless||Contains measurement and configuration values for sensorless control|
|3390h||Hall sensor (digital)||contains configuration values for the Hall sensors|
|33A0h||Incremental encoder 1||contains configuration values for the first incremental encoder|
|33A1h||Incremental encoder 2||contains configuration values for the second incremental encoder|
It is not possible to determine the resolution of encoders without index or with more than one index per motor revolution.
For external sensors that are not mounted directly on the motor shaft, you must set and store the gear ratio according to the constructive features (objects 60E8h and 60EDh) and/or the feed constant (objects 60E9h and 60EEh) (category Application).
|An encoder with a resolution of 2000 increments/mm was connected that is to be used in the field directly at the process for a high-precision position measurement. The constructive design was realized as follows:|
|You must set the resolution, gear ratio and feed constant as follows:|
|You must still set the unit for the position to millimeters or other unit of length, see chapter User-defined units.|
In object 3203h you can set which of the present feedbacks the controller takes into account for each controller (current controller/commutation, velocity controller, position controller) in closed loop or the determination of the actual position and actual speed in open loop. See also chapter Closed Loop and Assignment of the feedbacks to the control loops.