Siemens SINAMICS S120 Function Manual page 134

Servo control
3.13 Pole position identification
Commutation angle offset commissioning support (p1990)
The function for determining the commutation angle offset is activated via p1990=1. The
commutation angle offset is entered in p0431. This function can be used in the following
cases:
● Single calibration of the pole position for encoders with absolute information
● Calibrating the zero mark position for fine synchronization
Table 3- 16 Mode of operation of p0431
Incremental without
zero mark
C/D track Shifts the commutation
with respect to the C/D
track
Hall sensor Does not influence the
Hall sensor. The Hall
sensor must be
mechanically adjusted.
Pole position No effect
identification
Note
When fault F07414 occurs, p1990 is automatically started; if p1980 ≠ 99 and p0301 does not
refer to a catalog motor with an encoder that is adjusted in the factory.
132
(exception: The Hall sensor must always be mechanically adjusted.)
Incremental with one
zero mark
Shifts the commutation
with respect to the C/D
track and zero mark
Does not influence the
Hall sensor.
Shifts the commutation
with respect to the zero
mark.
Shifts the commutation
with respect to the zero
mark
Incremental with distance-
coded zero marks
Currently not available
Does not influence the Hall
sensor.
Shifts the commutation with
respect to the absolute
position (after two zero marks
have been passed).
Shifts the commutation with
respect to the absolute
position (after two zero marks
have been passed)
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Absolute encoder
Not permitted
Not permitted
Shifts the commutation
with respect to
absolute position
Drive functions