Stator Voltage Adjust helps you to adjust the U/f curve of the drive near the back-EMF curve.It is not necessary to change the values of many U/f curve parameters.The parameter P3.1.2.17 gives the output voltage of the drive in percentage of the nominalvoltage of the motor at the nominal frequency of the motor. Adjust the U/f curve of the driveabove the back-EMF curve of the motor. The motor current increases the more the U/f curveis different from the back-EMF curve.FieldWeakeningPointField WeakeningPoint VoltageMotor NominalVoltageMotor NominalFrequencyStator Voltage Adjustback-EMFZero FrequencyVoltage(50..200%)200%100%50%f [Hz]U [V]Fig. 13: The stator voltage adjustment9.2 START/STOP SETUPP3.2.5 STOP FUNCTION (ID 506)Use this parameter to select the type of the stop function.Selectionnumber Selection name Description0 CoastingThe motor stops on its inertia. When the stop command isgiven, the control by the drive stops and the current from thedrive goes to 0.1 Ramp After the stop command, the speed of the motor is decreasedto zero speed according to the deceleration parameters.P3.2.6 I/O START/STOP LOGIC (ID300)It is possible to control the start and stop of the drive with the digital signals in thisparameter.PARAMETER DESCRIPTIONS VACON · 12524-HOUR SUPPORT +358 (0)201 212 575 · EMAIL: VACON@VACON.COM 9
