Siemens Sinamics s120 Commissioning Manual page 271

Commutation angle outside the tolerance
Example: The falling edge of the sawtooth voltage (pole position angle) leads the zero
crossing of EMF phase U by approx. 18° electrical.
Image 3-96
Adapt the incorrect commutation shown in the figure above according to Chapter "Checking
the commutation angle offset with STARTER (Page 260)".
p0431 = p0431 - 18
STARTER Commissioning Manual
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5
3.18 Commissioning SIMOTICS T-1FW6 built-in torque motors
Example of an incorrectly commutated drive
Commissioning
271