Delta CFP2000 Series User Manual page 274

 You can set the frequency command (F) within the range of skip frequencies. Then the output
frequency (H) is limited to the lower limit of skip frequency ranges.
 When accelerating and decelerating, the output frequency still passes the skip frequency ranges.
Zero-speed Mode
Settings
 When the frequency command of drive is less than Fmin (Pr.01-07 or Pr.01-41), the drive
operates according to the setting value.
 0: the AC motor drive is in waiting mode without voltage output from terminals U, V, W.
 1: the drive executes the DC brake by Vmin (Pr.01-08 and Pr.01-42) in V/F and SVC modes.
 2: the AC motor drive runs using Fmin (Pr.01-07, Pr.01-41) and Vmin (Pr.01-08, Pr.01-42) in V/F
and SVC modes.
 In V/F and SVC modes
V/F Curve Selection
Settings
0: Waiting for output
1: Zero-speed operation
2: Minimum frequency (Refer to Pr.01-07, Pr.01-41)
0: V/F curve determined by Pr.01-00–01-08
1: 1.5 V/F curve
th
2: 2 V/F curve
nd
3: 60 Hz, voltage saturation in 50 Hz
4: 72 Hz, voltage saturation in 60 Hz
5: 50 Hz, decrease gradually with cube
6: 50 Hz, decrease gradually with square
7: 60 Hz, decrease gradually with cube
12.1-01-9
Chapter 12 Description of Parameter SettingsCFP2000
Default: 0
Default: 0