Mds: Motor Data Set - Siemens SINAMICS S120 Function Manual

13.5.4

MDS: Motor Data Set

A motor data set (MDS) contains various setting parameters of the connected motor, which
are relevant when configuring the drive. It also contains certain display parameters with
calculated data.
● Adjustable parameters, e.g.:
– Motor component number (p0131)
– Motor type selection (p0300)
– Rated motor data (p0304 ff.)
– ...
● Display parameters, e.g.:
– Calculated rated data (p0330 ff.)
– ...
The parameters that are grouped together in the motor data set are identified in the
SINAMICS S120/S150 List Manual by "Data Set MDS" and are assigned an index [0...n].
A separate motor data set is required for each motor that is controlled by the Control Unit via
a Motor Module. The motor data set is assigned to a drive data set via parameter p0186.
A motor data set can only be changed using a DDS changeover. The motor data set
changeover is, for example, used for:
● Changing over between different motors
● Changing over different windings in a motor (e.g. star-delta changeover)
● Adapting the motor data
If several motors are operated alternately on a Motor Module, a matching number of drive
data sets must be created. Further information about motor changeover, see Section Motor
changeover in this manual.
One drive object can manage up to 16 motor data sets. The number of motor data sets in
p0130 must not exceed the number of drive data sets in p0180.
For the 611U interface mode (p2038 = 1), the drive data sets are divided into groups of eight
(1-8; 9-16;...). Within a group, the assignment to the motor data set must be identical:
p0186[0] = p0186[1] = ... = p0186[7]
p0186[8] = p0186[9] = ... = p0186[15]
p0186[16] = p0186[17] = ... = p0186[23]
p0186[24] = p0186[25] = ... = p0186[31]
If this rule is not observed, alarm A07514 is output. If you need a precise representation of
the data set structure of the 611U, 32 drive data sets and 4 motor data sets must be
configured.
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Basic information about the drive system
13.5 Data sets
961