Siemens SINAMICS G150 Operating Instructions Manual page 481

The output can be scaled via parameter p2295 and the control direction reversed. It can be
limited via parameters p2291 and p2292 and interconnected as required via a connector
output (r2294).
The actual value can be integrated, for example, via an analog input on the TM31.
If a PID controller has to be used for control reasons, the D component is switched to the
setpoint/actual value difference (p2263 = 1) unlike in the factory setting. This is always
necessary when the D component is to be effective, even if the reference variable changes.
The D component can only be activated when p2274 > 0.
Note
With the entry "0" sec. as power up time or ramp-down time for the ramp function generator
of the technology controller, the current values of the respective ramp function generator will
be frozen.
Commissioning
The "technology controller" function module can be activated by running the commissioning
Wizard. Parameter r0108.16 indicates whether the function module has been activated.
Function diagram
FD 7950
FP 7951
FD 7954
FD 7958
Example: liquid 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 TM31) 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 Module (TM31) is used.
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
Technology controller – fixed values, binary selection
Technology controller – fixed values, direct selection
Technology controller – motorized potentiometer
Technology controller – closed-loop controller
Functions, Monitoring, and Protective Functions
9.3 Extended functions
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