YASKAWA FSDrive-MV1000 Parameter Manual page 143

u d3: Jump Frequency
d3-01 to d3-04: Jump Frequencies 1, 2, 3 and Jump Frequency Width
n
The Jump frequencies are frequency ranges at which the drive will not operate. The drive can be programmed with three
separate Jump frequencies to avoid operating at speeds that cause resonance in driven machinery. 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 parameters d3-01 through d3-03 to 0.0 Hz disables the Jump frequency function.
No.
d3-01
d3-02
d3-03
d3-04
<1> The upper limit is determined by the maximum output frequency (E1-04) and upper limit for the frequency reference (d2-01).
Figure 2.33 shows the relationship between the Jump frequency and the output frequency.
Figure 2.33
Note: 1. The drive will use the active accel/decel time (C1-01 and C1-02) to pass through the specified dead band range, but will not allow
continuous operation in that range.
2. Do not overlap parameters when setting more than one Jump frequency.
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
Name
Jump Frequency 1
Jump Frequency 2
Jump Frequency 3
Jump Frequency Width
Output
frequency
Frequency
Jump
Frequency 3
d3-03
Figure 2.33 Jump Frequency Operation
Setting Range
0.0 to 120.0 Hz
<1>
0.0 to 20.0 Hz
reference
decreases
Jump
Frequency
Width (d3-04)
Jump
Frequency
Width (d3-04)
Jump Jump
Frequency 2 Frequency 1
d3-02 d3-01
2.4 d: Reference Settings
0.0 Hz
1.0 Hz
common_TMonly
Frequency
reference
increases
Jump
Frequency
Width (d3-04)
Frequency
reference
Default
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