Basic information about the drive system
13.2 Drive objects
Drive functions
936 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
A drive object (DO) is an independent, "self-contained" software function that has its own
parameters and, in some cases, its own faults and alarms. Drive objects can be provided as
standard (e.g. I/O evaluation), or you can add single (e.g. terminal board) or multiple objects
(e.g. drive control).
Figure 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
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