5.4 d: Reference SettingsYASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 183Parameter Details5Figure 5.44 shows the relationship between the Jump frequency and the output frequency.Figure 5.44Figure 5.44 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 setting more than one Jump frequency, make sure that d3-01 ≥ d3-02 ≥ d3-03.◆ d4: Frequency Reference Hold and Up/Down 2 Function■ 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-= A)• Up/Down function (H1- = 10 and 11)• Up/Down 2 function (H1- = 75 and 76)Parameter d4-01 determines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when theStop command is entered or the power supply is shut down.The 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 switchedoff. The drive will start from 0 Hz when it is turned back on again.• Up/Down 2The frequency bias is not saved when the Stop command is entered, or 5 s after the Up/Down 2 command has beenreleased. The Up/Down 2 function will start with a bias of 0% when the drive is restarted.Setting 1: Enabled• Acceleration holdThe last hold value will be saved when the Run command or the drive power is switched off. The drive will use thevalue that was saved as the frequency reference when it restarts. The multi-function input terminal set for “Accel/deceld3-04 Jump Frequency Width 0.0 to 20.0 Hz <1> 1.0 Hz <1><1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent instead of in Hz.No. Parameter Name Setting Range Defaultd4-01 Frequency Reference Hold Function Selection 0 or 1 0No. Parameter Name Setting Range DefaultOutputfrequencyFrequencyreferenceJumpFrequencyWidth (d3-04)JumpFrequency 3d3-03JumpFrequency 2d3-02JumpFrequency 1d3-01Frequencyreferencedecreases FrequencyreferenceincreasesJumpFrequencyWidth (d3-04)JumpFrequencyWidth (d3-04) common_TMonly
