Setpoints; Overview - Siemens SINAMICS G120D Operating Instructions Manual

Advanced commissioning

7.3 Setpoints

7.3 Setpoints
7.3.1

Overview

You only have to set the setpoint source if you operate the converter without basic
positioner, i.e. you only operate it in the speed-controlled mode.
If you operate the converter in the speed-controlled mode, you must set the source for the
main setpoint of the motor speed.
Figure 7-7
You have the following options when selecting the source of the main setpoint:
● Converter fieldbus interface.
● Motorized potentiometer simulated in the converter.
● Fixed setpoints saved in the converter.
You have the same selection options when selecting the source of the supplementary
setpoint.
Under the following conditions, the converter switches from the main setpoint to other
setpoints:
● When jogging is active.
● When controlling from an operator panel or the STARTER PC tool.
In the basic commissioning, you have already selected a setpoint source. See also the
section: Commissioning (Page 59).
However, you can change this setting. The setpoint sources will be described in more detail
on the following pages.
126
Setpoint sources for the converter
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB