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

14.1.2.1 ScalingThe analog input signal is mapped to the freely configurable characteristic. The maximumadmissible setting range of the drive can be set via the frequency limits or percentagelimits according to the configuration selected. In the case of the parameterizationof a bipolar characteristic, the set minimum and maximum limits for both directionsof rotation are effective. The percentage values of the characteristic points arerelative to the limits selected.ParameterSettingsNo. Description Min. Max. Fact. sett.418 Minimum Frequency 0.00 Hz 999.99 Hz 3.50 Hz419 Maximum Frequency 0.00 Hz 999.99 Hz 50.00 HzThe control system uses the maximum value of the output frequency, which is calculatedfrom the Maximum Frequency 419 and the compensated slip of the drive. Thefrequency limits define the speed range of the drive, and the percentage values supplementthe scaling of the analog input characteristic in accordance with the functionsconfigured.ParameterSettingsNo. Description Min. Max. Fact. sett.518 Minimum Reference Percentage 0.00 % 300.00 % 0.00 %519 Maximum Reference Percentage 0.00 % 300.00 % 100.00 %14.1.2.2 Tolerance Band and HysteresisThe analog input characteristic with change of sign of the reference value can beadapted by the parameter Tolerance Band 450 of the application. The adjustabletolerance band extends the zero passage of the speed relative to the analog controlsignal. The parameter value (percent) is relative to the maximum current or voltagesignal.ParameterSettingsNo. Description Min. Max. Fact. sett.450 Tolerance Band 0.00 % 25.00 % 2.00 %pos. maximum value(X2 / Y2)pos. maximum value(X2 / Y2)0V(0mA)+10V(+20mA)0V(0mA)zero pointtolerance band+10V(+20mA)(X1 / Y1)neg. maximum valueWithout tolerance band(X1 / Y1)neg. maximum valueWith tolerance band118 02/06