Altivar 16 AC Drive Option card functions, analog input parameters Speed reference summing Available on: VW3A16201 , VW3A16202 , VW3A16203 . Analog input AI Function ± 10 V reference input summed with the AIV or AIC inputs. Applications Machines for which the speed is controlled by an external parameter. Output frequency of drive t Correcting signal at AI input (Maximum value ± 10 V) t t Reference speed at AIV (or AIC) Note : manual reference is not summed; see auto/manual function on page 24. Speed regulation Available on: VW3A16201 + VW3A16104 . Analog input AI Function Speed regulation with feedback by tachogenerator. Precision:
± 0.1 % of the maximum speed for a torque variation of 0.2 Tn to Tn and a speed range of 1 to 50 Hz or 1.2 to 60 Hz. Applications Machines requiring constant speed as motor load varies from 20% to 100% of full load. Wiring schematic COM AI Customer must provide an external resistor network to divide the voltage for adaptation of the drive to the tachogenerator voltage. Note : The drive insures that the input supply and the tachogenerator are galvanically isolated. ± 10 V 0 V B1 PI feedback Available on: VW3A16202 + VW3A16104 . Analog input AI Function Simple regulation of flow or pressure or other process variable. Applications Pumps and fans.
Wiring schematic COM AI AIV Feedback from flow or pressure Speed reference controlled by flow or pressure ± 10 V 0 V 0-10 V 20