BECKHOFF EL7037 - Manual (Page 140)

Commissioning
Fig. 162: Entering the velocity
• The changeover to sensorless operation take place via a programmable, motor-dependent switching
speed. The switching speed is usually in the range between half and three revolutions per second
(crossover velocity 1, Index 8014:07 [
} 182]). And subsequently a note with:
Note
Parameterization Sensorless operation
All parameters required for sensorless operation can be found in the table "Overview of pa-
rameter settings for individual operating modes [
} 124]".
However, all the required necessary parameters are pre-specified via a startup list for the
respective motor types.
5.4.7 Basic principles: "Positioning interface"
The "Positioning interface" offers the user a possibility to implement travel commands directly on the
terminal.
Predefined PDO Assignment
The "Predefined PDO Assignment [ } 103]" enables a simplified selection of the process data. Select the
function “Positioning interface” or “Positioning interface compact” in the lower part of the Process data tab.
As a result, all necessary PDOs are automatically activated and the unnecessary PDOs are deactivated.
Fig. 163: Predefined PDO Assignment
Parameter set
Two objects are at the user’s disposal in the CoE for the configuration – the “POS Settings” (Index 8020
[
} 183]) and the “POS Features” (Index 8021 [ } 184]).
EL70x7 140 Version 1.0