Jump Frequencies - Hitachi X200 Series Instruction Manual

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

frequencies causes the inverter output to skip around the sensitive frequency values.
Output
frequency
A067
A065
A063
Func. Name /
Code SRW Display
A063, Jump (center) frequency
A065, setting
A067 JUMP F1
JUMP F2
JUMP F3
A064, Jump (hysteresis) frequency
A066, width setting
A068
JUMP W1
JUMP W2
JUMP W3
as shown in the graph. The hysteresis around the jump
A064
A064
"A" Function
Up to 3 output frequencies can be
defined for the output to jump
0000.0Hz past to avoid motor resonances
(center frequency)
0000.0Hz
Range is 0.0 to 400.0 Hz
0000.0Hz
Defines the distance from the
center frequency at which the
jump around occurs
0000.5Hz
Range is 0.0 to 10.0 Hz
0000.5Hz
0000.5Hz
A068
A068
A066
A066
Frequency
command
Description
3 21
3 21
Run Defaults
Mode
-FE -FU
Units
Edit (EU) (USA)
0.0 0.0 Hz
0.0 0.0
0.0 0.0
0.5 0.5 Hz
0.5 0.5
0.5 0.5