Siemens SINAMICS S120 Getting Started page 145

Parameterizing the pole position identification
The pole position identification (PolID) differs depending on the motor type:
● For SIEMENS motors
● For motors that are not listed in the motor selection.
Precondition
● You have completely specified and configured the motor used in the device configuration
of the drive axis.
Note
This basic parameterization cannot be performed without having completed this full
configuration.
Procedure for SIEMENS motors
When using standard Siemens use the automatic default setting for the PolID.
Procedure for motors that are not listed in the motor selection
For these motors, you must parameterize the pole position identification yourself.
1. Select a suitable technique for the motor used in the "Technique" (p1980) drop-down list.
– [0] Saturation-based 1st + 2nd harmonics
– [1] Saturation-based 1st harmonic
– [4] Saturation-based 2-stage
Getting Started, 12/2018, 6SL3097-5AG30-0BP0
The saturation-based pole position identification is the preferred technique if it is not
possible that the motor moves.
The saturation-based PolID technique only functions for motors with an iron core. As a
result of the iron saturation, depending on the rotor position, the motor inductance
changes in various space-vector directions.
WARNING
Danger to life due to uncontrolled motor movement
During the saturation-based pole position identification, if a motor is not braked, it
can move in an uncontrolled fashion, which can result in death or serious injury.
• Ensure that nobody is present in the hazardous zone and that the mechanical
system can move freely.
• Ensure that this technique is only performed by appropriately trained and
experienced technical experts.
Note
Contact the SIEMENS service organization if you are not familiar and trained in using
this technique.
Performing basic parameterization
6.3 Drive axes
143