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“A” Group: Standard Functions
Configuring
Drive Parameters
3–22
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.
Jump frequencies
Output
frequency
Frequency command
Hysteresis values
0
A067
A065
A063
A064
A064
A066
A066
A068
A068
“A” Function
Run
Mode
Edit
Defaults
Func.
Code
Name /
SRW Display
Description
–FEF
(EU)
–FU
(USA)
Units
A063,
A065,
A067
Jump (center) frequency
setting
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
✘ 0.0
0.0
0.0
0.0
0.0
0.0
Hz
JUMP F1 0000.0Hz
JUMP F2 0000.0Hz
JUMP F3 0000.0Hz
A064,
A066,
A068
Jump (hysteresis)
frequency width setting
Defines the distance from the
center frequency at which the
jump around occurs
Range is 0.0 to 10.0 Hz
✘ 0.5
0.5
0.5
0.5
0.5
0.5
Hz
JUMP W1 0000.5Hz
JUMP W2 0000.5Hz
JUMP W3 0000.5Hz