FrequencyReferenceOutputFrequencyJumpFrequencyWidth (d3-04)JumpFrequency 3d3-03JumpFrequency 2d3-02JumpFrequency 1d3-01Frequencyreferencedecreases FrequencyreferenceincreasesJumpFrequencyWidth (d3-04)JumpFrequencyWidth (d3-04)Figure 1.26 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 setting more than one Jump frequency, make sure that d3-01≥ d3-02 ≥ d3-03.u d4: Frequency Reference 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 are used:• Accel/decel ramp hold function (H1-oo= A)• Up/Down function (H1-oo = 10 and 11)No. Parameter Name Setting Range Defaultd4-01 Frequency Reference Hold Function Selection 0, 1 0The operation depends on the function used with parameter d4-01.Setting 0: Disabled• Acceleration holdThe hold value will be reset to 0 Hz when the Stop command is entered or the drive power is switched off. The activefrequency reference will be the value the drive uses when it restarts.• Up/DownThe frequency reference value will be reset to 0 Hz when the Stop command is entered or the drive power is switched off.The drive will start from 0 Hz when it is restarted.Setting 1: Enabled• Acceleration holdThe last hold value will be saved when the Run command or the drive power is switched off and the drive will use the savedvalue as the frequency reference when it restarts. Make sure to continuously enable the multi-function input terminal set for“Accel/decel ramp hold” (H1-oo = A) or the hold value will be cleared when the power is switched on.1.4 d: Reference SettingsYASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual 591 Parameter Details
