Siemens SINAMICS S120 Function Manual page 806

Basic information about the drive system
13.3 Drive objects
Overview of the drive objects
● Drive control
The drive control handles closed-loop control of the motor. At least 1 Motor Module and
at least 1 motor and up to 3 sensors are assigned to the drive control.
Various drive control modes can be configured (e.g. servo control, vector control, etc.).
Several drive controls can be configured, depending on the performance of the Control
Unit and the demands made on the drive control system.
● Control Unit, inputs/outputs
The I/Os on the Control Unit are evaluated within a drive object. High-speed inputs for
probes are processed here in addition to bidirectional digital I/Os.
● Properties of a drive object
– Separate parameter space
– Separate window in STARTER
– Separate fault/alarm system
– Separate PROFIdrive telegram for process data
● Supply: Line Module infeed control with DRIVE-CLiQ interface
If an Active Line Module with a DRIVE-CLiQ interface is used for the infeed in a drive
system, open-loop/closed-loop control is implemented on the Control Unit within a
corresponding drive object.
● Supply: Line Module infeed control with DRIVE-CLiQ interface
If a Line Module without a DRIVE-CLiQ interface is used for the infeed in a drive system,
the Control Unit must handle activation and evaluation of the corresponding signals
(RESET, READY).
● Option Board evaluation
An additional drive object is responsible for evaluating an inserted option board. The
specific method of operation depends on the type of option board.
● Terminal Module evaluation
A separate drive object handles evaluation of the respective optional Terminal Modules.
● Evaluating an external ENCODER
A dedicated drive object is responsible for evaluating an optional additional encoder that
can be connected.
Note
Drive object
A list of all drive objects is provided in the SINAMICS S120/S150 List Manual in Section
Overview of parameters.
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Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions