Rockwell Automation 1336VT AC DRIVE 5-300AMP (2-160KW) PROGRAMMING MANUAL - Manual (Page 38)

Local and Serial Port Parameters
Firmware Version 1.01-3.01
Chapter 3
3-24
Parameter 35 Ċ Skip Frequency
Band
Freq P R
P R Enter Hertz
0
15
0
Read and Write
Units
Minimum Value
Maximum Value
Factory Setting
Parameter 35 is programmed for the Skip Frequency Band — the range of
frequencies to skip. It is used for each of the skip frequency ranges
programmed. The actual range will be the skip frequency (Parameter 32,
33 or 34) minus the value of Parameter 35, to the skip frequency plus the
value of Parameter 35.
Example: If Parameter 32 = 30 Hz and Parameter 35 = 5 Hz, a skip
frequency band from 25 Hz (30 – 5) to 35 Hz (30 + 5) will be generated.
If two or more of the skip frequencies are programmed with values that
along with the Skip Frequency Band produce overlapping ranges, it will
result in one large range.
Example: Parameter 32 = 20 Hz
Parameter 33 = 30 Hz
Parameter 34 = 50 Hz
Parameter 35 = 6 Hz
These values establish two skip frequency ranges. One range is from 14 Hz
(20 – 6) to 36 Hz (30 + 6). The other range is from 44 Hz (50 – 6) to 56 Hz
(50 + 6). Since the upper limit of the first range (20 + 6 = 26), is higher
than the frequency at the lower limit of the second range (30 – 6 = 24),
they combine to form one large range.