Set as a percentage of the maximum output frequency.Note: The lower limits for the Jog frequency, multi-step speed settings, and 2-step speed settings do not change. When lower limits are setto both the frequency reference (d2-02) and the main frequency reference (d2-03), the drive uses the greater of those two values as thelower limit.No. Parameter Name Setting Range Defaultd2-03 Master Speed Reference Lower Limit 0.0 to 110.0% 0.0%u d3: Jump Frequencyn d3-01 to d3-04: Jump Frequencies 1, 2, 3, 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 bandand only accelerate past it when the frequency reference rises above the upper end of the dead band.Setting parameters d3-01 through d3-03 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 Hzd3-03 Jump Frequency 3 0.0 to 400.0 Hz 0.0 Hzd3-04 Jump Frequency Width 0.0 to 20.0 Hz 1.0 HzFigure 5.35 shows the relationship between the Jump frequency and the output frequency.OutputfrequencyFrequencyreferenceJumpFrequencyWidth (d3-04)JumpFrequency 3d3-03JumpFrequency 2d3-02JumpFrequency 1d3-01Frequencyreferencedecreases FrequencyreferenceincreasesJumpFrequencyWidth (d3-04)JumpFrequencyWidth (d3-04)Figure 5.35 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 operationin that range.2. When using more than one Jump frequency, make sure that d3-01 ≥ d3-02 ≥ d3-03.u d4: Frequency Hold and Up/Down 2 Functionn d4-01: Frequency Reference Hold Function SelectionThis parameter is effective when either of the digital input functions listed below is used.• Accel/decel ramp hold function (H1-oo= A)• Up/Down function (H1-oo = 10 and 11, sets the frequency reference by digital inputs)• Up/Down 2 function (H1-oo = 75/76, adds a bias to the frequency reference using digital inputs)Parameter d4-01 determines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when theRun command is cleared or the power supply is shut down.No. Parameter Name Setting Range Defaultd4-01 Frequency Reference Hold Function Selection 0 or 1 05.4 d: Reference Settings156 YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
