Rockwell Automation 1333 Drive, 3/4-5HP, 230-575V Series D - Manual (Page 79)

Operation and Programming
Chapter 5
5-36
Skip Frequency Settings Parameters 42 , 43 and 44 -- Skip Frequencies 1, 2 and 3
Units = Hertz
Range = 0000/400.0
Factory Setting = 0000
To help avoid undesirable mechanical resonance, Parameters 42-44
prevents the drive from running at one, two or three specific frequencies.
Although the drive will use these frequencies when accelerating or
decelerating, they cannot be set as ”running” frequencies by any drive
parameter. The drive will stay slightly above or slightly below these
frequencies if the frequency values are entered. If a Skip Frequency value
of 0000 is selected, the skip frequency function of that parameter is
disabled.
From 00.50-100.0 Hz, Parameters 42-44 sets the Skip Frequencies in .01
Hz increments.
From 100.0-400.0 Hz, Parameters 42-44 sets the Skip Frequencies in 0.1
Hz increments.
Skip Frequency Settings
Parameter
44 Parameter
42 Parameter
43
Ac
celeration
Parameter
42 Parameter
44 Parameter
43
De
celeration
Command
Frequency
Parameter 45 Parameter 45