Operating Instructions

Descriptions of Parameter Settings
Descriptions of Parameter Settings
99 | 443
Skip Frequency
Pr.
Explanation
Settings
Default
01-28
Skip frequency 1 (upper limit)
0.00–599.00 Hz
0.00
01-29
Skip frequency 1 (lower limit)
0.00–599.00 Hz
0.00
01-30
Skip frequency 2 (upper limit)
0.00–599.00 Hz
0.00
01-31
Skip frequency 2 (lower limit)
0.00–599.00 Hz
0.00
01-32
Skip frequency 3 (upper limit)
0.00–599.00 Hz
0.00
01-33
Skip frequency 3 (lower limit)
0.00–599.00 Hz
0.00
● Sets the AC motor drive's skip frequency. The drive's frequency setting skips these frequency ranges.
However, the frequency output is continuous. There are no limits for these six parameters and you can
combine them. Pr.01-28 does not need to be greater than Pr.01-29; Pr.01-30 does not need to be greater than
Pr.01-31; Pr.01-32 does not need to be greater than Pr.01-33. You can set Pr.01-28–01-33 as you required.
There is no size distinction among these six parameters.
● These parameters set the skip frequency ranges for the AC motor drive. You can use this function to avoid
frequencies that cause mechanical resonance. The skip frequencies are useful when a motor has resonance
vibration at a specific frequency bandwidth. Skipping this frequency avoids the vibration. There are three
frequency skip zones available.
● 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.
● During acceleration and deceleration, the output frequency still passes through the skip frequency ranges.
Zero-speed Mode
Pr.
Explanation
Settings
Default
01-34
Zero-speed mode
0: Output waiting
1: Zero-speed operation
2: Fmin (See Pr.01-07 and Pr.01-41)
0