Advanced commissioning
7.11 Motor control
SIMATIC ET 200pro FC-2 converter
150
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257324B AF
Table 7- 26 Adapting the actual value of the technology controller
Parameter
Description
Setting
p2267
Technology controller upper
limit actual value [%]
Factory setting: 100 %
p2268
Technology controller lower
limit actual value [%]
Factory setting: -100 %
p2269
Technology controller gain
actual value [%]
Factory setting: 100 %
p2271
Technology controller actual
value inversion
Technology controller actual value inversion
If the actual value decreases with increasing motor speed, then p2271
must be set = 1.
0: no inversion
1: actual value signal is inverted
Factory setting: 0
p2270
Technology controller actual
value function
Technology controller actual value function
0: no function
1:
√
2: x
2
3: x
3
Factory setting: 0
Further information
For additional information refer to the function diagrams 7950 ff of the List Manual.
You will find additional information on the following PID controller components in the Internet
at:
●
Setpoint input: Analog value or fixed setpoint
●
Setpoint channel: Scaling, ramp-function generator and filter
●
Actual value channel: Filter, limiting and signal processing
●
PID controller Principle of operation of the D component, inhibiting the I component and
the control sense
●
Enable, limiting the controller output and fault response
FAQ (
http://support.automation.siemens.com/WW/view/en/92556266
7.11
Motor control
The inverter has two alternative methods to control (closed loop) the motor speed:
●
U/f control
●
Vector control
