Siemens SINAMICS S120 Function Manual page 428

Function modules
9.1 Technology controller
● The D component can be switched into the control deviation or actual value channel.
● The motorized potentiometer of the technology controller is only active when the drive
pulses are enabled.
Commissioning the function
The "Technology controller" function module can be activated in the Startdrive engineering tool
via "Basic parameter assignment > Function modules". The parameter r0108.16 shows the
current configuration of the function module.
Example: Level control
The objective here is to maintain a constant level in the container.
This is carried out by means of a variable-speed pump in conjunction with a sensor for
measuring the level.
The level is determined via an analog input (e.g. AI0 on TB30) and sent to the technology
controller. The level setpoint is defined in a fixed setpoint. The resulting controlled variable is
used as the setpoint for the speed controller.
In this example, a Terminal Board 30 (TB30) is used.
Figure 9-1
Figure 9-2 Level control: Controller structure
426
Level control: Application
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions