Cyclic Communication; Telegrams And Process Data - Siemens SINAMICS S120 Function Manual

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Communication

11.1 Communication according to PROFIdrive

Supplementary PZD-0/3

Supplementary PZD-2/5

Supplementary PZD-3/1

Free interconnection and length

Dynamic Servo Control (DSC)

The PROFIdrive profile contains the "Dynamic Servo Control" control concept. This requires

PROFIdrive application class 4 and transfers not only the speed setpoint, but also the KPC

position controller gain factor and the XERR system deviation. With the aid of this data, the

position controller can be calculated in the drive. The position setpoint interpolation is still

performed in the controller. This can be used to significantly increase the dynamic

stability/stiffness of the position control loop in PROFIdrive application class 4.

Cyclic communication

Cyclic communication is used to exchange time-critical process data (e.g. setpoints and

actual values).

The process data (PZD) that is to be transferred is defined through the configuration of the

drive unit (Control Unit). You can view and change the telegrams to be transferred in the

STARTER screen form:

PZD telegrams

Function Manual, 11/2017, 6SL3097-4AB00-0BP5

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