Vacon NX series Operating Manual

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Vacon NX series Operating Manual Manual pdf 10 page image

2vacon • 8 ParametersTel. +358 (0) 201 2121 • Fax +358 (0)201 212 2852.1.2 Voltage referenceP2.2.1.1 DC V OLTAGE REFERENCE ID1462Voltage reference in percentage of Source Nom Voltage.P2.2.1.2 D ROOPING ID620Voltage reference drooping. Used when parallel DC-DC converters are used.P2.2.1.3 REACTIVE CURRENT REFERENCE SOURCE SELECTION ID1867Voltage reference ramp rate in in percentage or in seconds.P2.2.1.4 V OLTAGE REFERENCE A T S TART ID1864This parameter is used to define how the voltage reference starting value is handled in a start. Thestart will be smoother when the value is close to the actual source voltage.0 = ReferenceStarting voltage is a directly given reference P2.2.1.1 Voltage Reference.1 = V Ref StartStarting voltage is defined by parameter P2.2.1.5 Start Voltage Reference and ramped to actualreference with set ramp rate.2 = MeasurementStarting voltage is taken from measured voltage V1.12.11 Voltage Meas. ID1866. This monitoringvalue can be written by analogue ID function or from fieldbus.3 = 80 %Drive will start as an initial guess of 80% of source voltage.P2.2.1.5 S TART VOLTAGE REFERENCE ID1865The voltage value that is used for the initial start voltage when P2.2.1.4 Voltage Reference At Startis 1 / V Ref Start.Table 2. Voltage reference handlingCode Parameter Min Max Unit Default ID NoteP2.2.1.1 Voltage Reference 0 320 % 100 1462P 2.2.1.2 Drooping 0 100 % 0 620P 2.2.1.3 Voltage ReferenceRamp Rate -1 320 %/s 5 1867P2.2.1.4 Voltage Reference AtStart 0 2 3 18640 = Reference1 = Start Voltage Reference2 = Measurement3 = 80%P2.2.1.5 Start VoltageReference 0 320 % 90 1865