Hitachi WJ200-001S Instruction Manual page 114

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 causes the inverter output to skip around the sensitive frequency
values.
Output
frequency



Func.
Name
Code
Jump freq. (center) 1 to 3



Jump freq. width

(hysteresis) 1 to 3


jump frequencies
as shown in the graph. The hysteresis around the


"A" Function
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
Defines the distance from the
center frequency at which the
jump around occurs
Range is 0.0 to 10.0 Hz




Frequency
command
Description
Defaults
Run
Mode
Initial data Units
Edit

0.0 Hz
0.0
0.0
 Hz
0.5
0.5
0.5
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