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Jump Frequencies – Some motors or machines exhibit resonances at particular speed(s),
which can be destructive for prolonged running at those speeds. The inverter has up to
three
jump frequencies
as shown in the graph. The hysteresis around the jump
frequencies causes the inverter output to skip around the sensitive frequency values.
“A” Function Defaults
Func.
Code
Name /
SRW Display
Description
Run
Mode
Edit
-FE
(EU)
-FU
(USA)
Units
Jump (center) frequency
setting
A063,
A065,
A067
JUMP F1 0000.0Hz
JUMP F2 0000.0Hz
JUMP F3 0000.0Hz
Up to 3 output frequencies can be
defined for the output to jump
past to avoid motor resonances
(center frequency)
Range is 0.0 to 400.0 Hz
U
0.0
0.0
0.0
0.0
0.0
0.0
Hz
Jump (hysteresis) frequency
width setting
A064,
A066,
A068
JUMP W1 0000.5Hz
JUMP W2 0000.5Hz
JUMP W3 0000.5Hz
Defines the distance from the
center frequency at which the
jump around occurs
Range is 0.0 to 10.0 Hz
U
0.5
0.5
0.5
0.5
0.5
0.5
Hz
Output
frequency
Frequency
command
A065
A067
A063
A064
A064
A066
A066
A068
A068
3
−
21
Configuring Drive
Parameters