No. Parameter Name Setting Range Defaultd2-02 Frequency Reference Lower Limit 0.0 to 110.0% 0.0%Internal frequencyreferenced2-01OperatingrangeFrequency Reference Upper LimitSet frequency referenceFrequency Reference Lower Limitd2-02Figure 5.10 Frequency Reference: Upper and Lower Limitsu d3: Jump Frequencyn d3-01, d3-02, d3-04: Jump Frequencies 1, 2, and Jump Frequency WidthIn order to avoid continuous operation at a speed that causes resonance in driven machinery, the drive can be programmedwith three separate Jump frequencies that will not allow continued operation within specific frequency ranges. If the speedreference falls within a Jump frequency dead band, the drive will clamp the frequency reference just below the dead band andonly accelerate past it when the frequency reference rises above the upper end of the dead band.Setting parameters d3-01 and d3-02 to 0.0 Hz disables the Jump frequency function.No. Parameter Name Setting Range Defaultd3-01 Jump Frequency 1 0.0 to 400.0 Hz 0.0 Hzd3-02 Jump Frequency 2 0.0 to 400.0 Hz 0.0 Hzd3-04 Jump Frequency Width 0.0 to 20.0 Hz 1.0 HzFigure 5.11 shows the relationship between the Jump frequency and the output frequency.OutputfrequencyFrequencyreferencedecreasesFrequencyreferenceincreasesFrequencyreferenceJump Frequency 1d3-01Jump Frequency 2d3-02JumpFrequencyWidthd3-04JumpFrequencyWidthd3-04Figure 5.11 Jump Frequency OperationNote: 1. The drive will use the active accel/decel time to pass through the specified dead band range but will not allow continuous operation inthat range.2. When using more than one Jump frequency, make sure that d3-01 ≥ d3-02.5.4 d: Reference Settings92 YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manualhttp://nicontrols.com
