Setpoint Channel And Closed-Loop Control; Setpoint Addition; Direction Of Rotation Changeover - Siemens SINAMICS GL150 Operating And Installation Instructions

All these drive parameters can be read and changed via PROFIBUS using the mechanisms
defined in the PROFIdrive profile.
Parameter categories
The parameters for the individual drive objects (DO) are categorized according to data sets
as follows:
● Data-set-independent parameters
● Data-set-dependent parameters
8.2

Setpoint channel and closed-loop control

8.2.1

Setpoint addition

Fine tuning (correction variable) often needs to be carried out on site for applications in which
the command variables are generated by central control systems.
This can be carried out using the addition point for the main and additional setpoint in the
setpoint channel. Both variables are imported simultaneously via two separate or one setpoint
source and added in the setpoint channel.
8.2.2

Direction of rotation changeover

You have the following options of subsequently inverting the phase sequence:
● Replace the motor cable.
● Enter a negative setpoint or change the device parameterization.
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions 04/2017
These parameters exist only once per drive object.
These parameters can exist several times for each drive object and are addressed via the
parameter index for reading and writing. The following data set types can be distinguished:
– CDS: Command data set
By parameterizing several command data sets and switching between them, the drive
can be operated with different preconfigured signal sources.
– DDS: Drive data set
The drive data set contains the parameters required for switching the drive control
parameters.
The CDS and DDS data sets can be switched during operation. Further data set types
also exist, however these can only be activated indirectly by means of a DDS
changeover.
– EDS: Encoder data set
– MDS: Motor data set
8.2 Setpoint channel and closed-loop control
Operation
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