Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

Structural image:Technology controllerReference percentage source 476-Ind. volume flow control factor 446xActual values:Volumetric flow 285Pressure 286Actual percentage source 478The behavior of the technology controller corresponds to a PI controller. The proportionalcomponent is optimized via parameter Amplification 444 and the integral componentvia parameter Integral Time 445. The sign of the amplification determines thedirection of control, i.e. with a rising actual value and pos. sign of the amplification,the output frequency is reduced (e.g. in pressure control). With a rising actual valueand neg. sign of the amplification, the output frequency is increased (e.g. in temperaturecontrol systems, refrigerating machines, condensers).The parameter max. P-Component 442 limits the frequency change at the controlleroutput. This prevents an oscillation of the system if large acceleration ramps wereselected.In the standard and contents level 2 operation modes, the Hysteresis 443 limits thedeviation of the output parameter of the technology controller to the current statorfrequency of the motor.ParameterSettingsNo. Description Min. Max. Fact. sett.441 Fixed Frequency -999.99 Hz +999.99 Hz 0.00 Hz442 max. P-Component 0.01 Hz 999.99 Hz 50.00 Hz443 Hysteresis 0.01 % 100.00 % 10.00 %444 Amplification -15.00 +15.00 1.00445 Integral Time 0 ms 32767 ms 200 ms446 Ind. Volume Flow Control Factor 0.10 2.00 1.00Note:The parameterization of the technology controller in the individual datasets enables an adaptation to various operating points of the applicationwith the data set change-over via control contacts.02/06 151