Proportional-Integral-Derivative (Pid) Controller - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

7.11.2

Proportional-Integral-Derivative (PID) Controller

The control has a built-in PID controller available for use as a process control input of the
command generator.
The PID loop is programmable from the user Interface. It is used to incorporate an external
process as an outer control loop to the drive. The PID command set point can be either an
external analog input or an internal set point. The PID feedback is always from an analog input.
The proportional, integral, and derivative gains, as well PID output limits, are programmable.
The PID is depicted in the following figure.
Figure 7-25 PID Controller
Configuring the PID Controller
1. Select the PID output as the speed demand for the system by setting SOP
flag RawDemandPid_0 to true.
2. The PID command feedback source is fixed from analog input #2. You can use any of the
available analog inputs within the system, but you must designate it as analog input #2 in the
setup menu. Refer to Analog Input #2 Menu (4170) in Section Options for Auto Menu (4) of
Chapter Parameter Assignment / Addressing.
3. The PID command has two possible sources: analog input #1 or the PID set point menu
(4410). Select the source using SOP flag PidMenu_0:
– Set flag to true to select the PID set point menu as the source.
– Set flag to false to select analog input #1 as the source.
4. Configure analog input #1 source from Analog Input #1 Menu (4100) in Section Options for
Auto Menu (4) of Chapter Parameter Assignment / Addressing.
Parameters for the PID Controller
Refer to PID Select Menu (4350) in Section Options for Auto Menu (4) of Chapter Parameter
Assignment / Addressing for parameters to set the PID controller.
NXGPro+ Control Manual
Operating Manual, A5E50491925A
Operating the Control
7.11 Command Generator
219