2. When setting more than one Jump frequency, make sure that the parameters do not overlap.u d4: Frequency Reference Hold and Up/Down 2 Functionn d4-01: Frequency Reference Hold Function SelectionDetermines whether the frequency reference or the frequency bias (Up/Down 2) value is saved when the Stop command isentered or the power supply is shut down. This parameter is effective when either of the digital input functions listed beloware used:• Accel/decel ramp hold function (H1-oo= A)• Up/Down function (H1-oo = 10 and 11)• Up/Down 2 function (H1-oo = 75 and 76)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.• Up/Down 2The frequency bias is not saved when the Stop command is entered, or 5 s after the Up/Down 2 command has been released.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 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.Power supplyForward Run / StopHold Accel/DecelFrequency referenceOutput frequency d4-01 = 1d4-01 = 0Hold HoldOFFOFFOFFOFF OFFONON ONON ONONFigure 5.30 Frequency Reference Hold with Accel/Decel Hold Function• Up/DownThe frequency reference value will be saved when the Run command or the drive power is switched off. The drive will usethe frequency reference that was saved when it restarts.• Up/Down 2 with frequency reference from digital operatorWhen a Run command is active and the Up/Down 2 command is released for longer than 5 s, the Up/Down 2 bias value isadded to the frequency reference and then reset to 0. This new frequency reference is saved and will also be used to restartthe drive after the power is cycled.5.4 d: Reference Settings186 YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
