YASKAWA OYMC V1000, Programming Manual

Page: 99 / 408

1.4 d: Reference Settings
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 99
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d3: Jump Frequency
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d3-01 to d3-04: Jump Frequencies 1, 2, 3 and Jump Frequency Width
In order to avoid continuous operation at a speed that causes resonance in driven machinery,
the drive can be programmed with three separate Jump frequencies that will not allow
continued operation within specific frequency ranges. If the speed reference falls within a
Jump frequency dead band, the drive will clamp the frequency reference just below the dead
band and only accelerate past it when the frequency reference rises above the upper end of
the dead band.
Setting the parameters d3-01 through d3-03 to 0.0 Hz disables the Jump frequency function.
The figure below shows the relationship between the Jump frequency and the output
frequency.
No. Parameter Name Setting Range Default
d3-01 Jump Frequency 1
0.0 to 400.0 Hz
0.0 Hz
d3-02 Jump Frequency 2
0.0 Hz
d3-03 Jump Frequency 3
0.0 Hz
d3-04 Jump Frequency Width
0.0 to 20.0 Hz 1.0 Hz