Siemens SINAMICS S120 Function Manual page 453

Hide thumbs Also See for SINAMICS S120:

Table of Contents

Load gear problems and solutions, see example in Section Position tracking -> Measuring gear.

● Configuration via p2720

● Virtual multiturn via p2721

● Tolerance window for monitoring the position at switching on p2722

● Input of the load gear via p2504 and p2505

● Display via r2723

Commissioning the function

You can commission the load gearbox via parameter p2720 as follows:

● p2720.0: Activation of position tracking

● p2720.1: Setting the axis type (linear axis or rotary axis)

Here, a rotary axis refers to a modulo axis; the modulo offset can be activated from a higher-

level controller or EPOS. With a linear axis, position tracking is mainly used to extend the

position area (see section: Virtual multiturn encoder (p2721).

● p2720.2: Reset position

The position values stored in a non-volatile fashion are reset for the following events:

– When encoder replacement is detected.

– When the configuration of the encoder data set (EDS) is modified.

– When the absolute encoder is adjusted again.

If position tracking of the load gear is activated with parameter p2720[0] = 1 (position gear load

tracking) after the encoder is adjusted (p2507 = 3), the adjustment will be reset.

If the encoder is adjusted again when load position tracking is active, the load gear position will

be reset (overflows).

The permissible position tracking range is mapped on the reproducible encoder range of EPOS.

It is possible to activate position tracking for several DDS.

Further information

Further information on the parameterization of the load gear position tracking is provided in the

"SINAMICS S120 Startdrive Commissioning Manual".

Drive functions

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

Function modules

9.7 Position control