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Functions
7.9 Application-specific functions
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
243
7.9.4
PID technology controller
The technology controller permits all types of simple process controls to be implemented.
You can use the technology controller for e.g. pressure controllers, level controls or flow
controls.
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Figure 7-18 Example: technology controller as a level controller
Principle of operation
The technology controller specifies the speed setpoint of the motor in such a way that the
process variable to be controlled corresponds to its setpoint. The technology controller is
designed as a PID controller, which makes it highly flexible.
The technology controller setpoint is entered via an analog input or via the fieldbus.
Table 7- 42 Technology controller parameters
Parameter
Description
P2200 = …
Enable technology controller
P2201 … r2225
Fixed speeds for the technology controller
P2231 … P2248
Motorized potentiometer for the technology controller
P2251 … r2294
General adjustment parameters of the technology controller
P2345 = …
Changing the fault reaction for the technology controller
Additional information about this function is provided in the parameter list and in the function
diagrams 7950 … 7958 in the List Manual.
Additional technology controllers
Via the parameter ranges
●
p11000 … p11099: free technology controller 0
●
p11100 … p11199: free technology controller 1
●
p11200 … p11299: free technology controller 2
additional technology controllers can be parameterized. Refer to the parameter descriptions
and in function diagram 7970 of the associated List Manual for additional details.
Summary of Contents for SINAMICS G120 CU230P-2
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