Power supplyForward Run / StopHold Accel/DecelFrequency referenceOutput frequency d4-01 = 1d4-01 = 0Hold HoldOFFOFFOFFOFF OFFONON ONON ONONFigure 1.42 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.BiasOutputfrequencyBias is added to frequencyreference and reset to 0Up 2 commandFrequencyreference5 s 5 sFigure 1.43 Up/Down 2 Example with Reference from Digital Operator and d4-01 = 1• Up/Down 2 with frequency reference from input sources other than the digital operatorWhen a Run command is active and the Up/Down 2 command is released for longer than 5 s, the bias value will be savedin parameter d4-06. When restarting after the power is switched off, the drive will add the value saved in d4-06 as a bias tothe frequency reference.1.4 d: Reference Settings64 YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
