Position Tracking; General Information - Siemens SINAMICS S120 Function Manual

Basic functions

6.17 Position tracking

6.17 Position tracking
6.17.1

General Information

Terminology
● Encoder range
● Singleturn encoder
● Multiturn encoder
Description
Position tracking enables reproduction of the position of the load when gears are used. It can
also be used to extend the position area.
With position tracking, an additional measuring gear can be monitored and also a load gear,
if the "position control" function module (p0108.3 = 1) is active. Position tracking of the load
gear is described under "Function modules" -> "Position control" -> Actual position value
conditioning.
Figure 6-12 Overview of gears and encoders
The encoder position actual value in r0483 (must be requested via GnSTW.13) is limited to
2
32
value r0483 comprises the following position information:
232
The encoder range is the position area that can itself represent the absolute encoder.
A singleturn encoder is a rotating absolute encoder, which provides an absolute image of
the position inside an encoder rotation.
A multiturn encoder is an absolute encoder that provides an absolute image of several
encoder revolutions (e.g. 4096 revolutions).
M
~
places. When position tracking (p0411.0 = 0) is switched off, the encoder position actual
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Drive functions