Siemens SINAMICS S150 - Page 174

Operation
6.3 Basic information about the drive system
Drive converter cabinet units
174 Operating Instructions, 07/07, A5E00288214A
Parameter categories
The parameters for the individual drive objects (see "Drive objects") are categorized
according to data sets as follows (see "Operation/data sets"):
● Data-set-independent parameters
These parameters exist only once per drive object.
● Data-set-dependent parameters
These parameters can exist several times for each drive object and can be addressed via
the parameter index for reading and writing. A distinction is made between various types
of data set:
– CDS: Command data set
By parameterizing several command data sets and switching between them, the drive
can be operated with different pre-configured signal sources.
– DDS: Drive Data Set
The drive data set contains the parameters for switching between different drive
control configurations.
The CDS and DDS can be switched over during normal operation. Further types of data
set also exist, however these can only be activated indirectly by means of a DDS
switchover.
– EDS: encoder data set
– MDS: Motor data set
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Figure 6-2 Parameter categories