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

10 System DataThe various control functions and methods according to the selected Configuration30 are supplemented by control and special functions. For monitoring the application,process parameters are calculated from electrical control parameters.10.1 Actual Value SystemThe parameter Factor Actual Value System 389 can be used if the drive is monitoredvia the parameter Actual Value System 242.The Actual Frequency 241 to be monitored is multiplied by the Factor Actual ValueSystem 389 and can be read out via the parameter Actual Value System 242, i.e.Actual Frequency 241 x Factor Actual Value System 389 = Actual Value System242.ParameterSettingsNo. Description Min. Max. Fact. sett.389 Factor Actual Value System -100.000 100.000 1.00010.2 Volume Flow and PressureThe parameterization of the factors Nominal Volumetric Flow 397 and NominalPressure 398 is necessary if the matching actual values Volumetric flow 285 andPressure 286 are used to monitor the drive. The conversion is done using the electricalcontrol parameters.Volume Flow 285 and Pressure 286 are referred to the Effective Current 214 in thecase of the sensor-less control methods. In the case of the field-oriented controlmethods, they are referred to the torque-forming current component Isq 216.ParameterSettingsNo. Description Min. Max. Fact. sett.397 Nominal Volumetric Flow 1 m 3 /h 99999 m 3 /h 10 m 3 /h398 Nominal Pressure 0.1 kPa 999.9 kPa 100.0 kPaLine mains or channel characteristic:HkPaB1Pconst.- methodAB2bad point methodQm/h3Point A in the figure describes the rating point of a pump. The transition to partialload operation mode B1 can be effected at a constant pressure H (change of conveyingflow Q, pressure H remains constant). The transition to partial load operationmode B2 can be effected according to the bad point method (change of pressure Hand conveying flow Q). Both methods can be realized with the integrated technologycontroller in configuration 111. The actual values displayed are calculated according tothe bad point method independently of the selected Operation Mode 440 of thetechnology controller.82 02/06