Siemens SINAMICS S120 Commissioning Manual page 186

Commissioning
4.8 Basic parameterization of the drive objects
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
– [10] Motion-based
– [20] Elasticity-based
– [99] No technique selected
2. Select the "Pole position identification" option to activate the technique.
Result
Why was synchronization not successful?
● The motor provides insufficient or no torque.
● The motor becomes hot too fast.
184
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.
The motion-based PolID technique is the preferred technique if the motor can move.
The motor traverses left and right along a defined path. If both paths are identical, the
pole position identification (PolID) was successful.
Commissioning with Startdrive
Commissioning Manual, 12/2018, 6SL3097-5AA10-0BP0