Siemens SINAMICS G120D Operating Instructions Manual page 169

Setting the technology controller
Parameter
p2200 = 1
p1070 = 2294
p2253
p2264
p2257, p2258
p2274
p2280
p2285
Advanced settings
Parameter
Limiting the output of the technology controller
In the factory setting, the output of the technology controller is limited to ± maximum speed. You must
change this limit, depending on your particular application.
Example: The output of the technology controller supplies the speed setpoint for a pump. The pump
should only run in the positive direction.
p2297 = 2291
p2298 = 2292
p2291
p2292
Manipulating the actual value of the technology controller
p2267, p2268
p2269
p2271
p2270
For further information refer to the function block diagrams 7950 ff of the List Manual.
Converter with control units CU240D-2
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
Remark
Enable technology controller.
Interconnect the main speed setpoint with the output of the technology controller.
Define the setpoint for the technology controller.
Example:
p2253 = 2224: The inverter interconnects the fixed setpoint p2201 with the setpoint
of the technology controller.
p2220 = 1: The fixed setpoint p2201 is selected.
Define the setpoint for the technology controller.
Define the ramp-up and ramp-down times [s]
Differentiation time constant [s]
The differentiation improves the rise time characteristics for very slow controlled
variables, e.g. a temperature control.
p2274 = 0: The differentiation is switched off.
Proportional gain K
P
Integral time T [s]
N
Without an integral time, the controller cannot completely equalize deviations
between the setpoint and actual value.
p2285 = 0: The integral time is switched off.
Remark
Interconnect the upper limit with p2291.
Interconnect the lower limit with p2292.
Upper limit for the technology controller output e.g.: p2291 =100
Lower limit for the technology controller output e.g.: p2292 = 0
Limit the actual value
Scale the actual value
Invert the actual value
Actual value
Setting functions
8.7 Application-specific functions
169