D3: Jump Frequency - YASKAWA FSDrive-MV1000 Parameter Manual

2.4 d: Reference Settings

◆ d3: Jump Frequency

■ d3-01 to d3-04: Jump Frequencies 1, 2, 3 and Jump Frequency Width
To avoid operating at a speed that causes resonance in driven machinery, the drive can be programmed with three
separate Jump frequencies. The Jump frequencies are frequency ranges that the drive will not operate at. 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 2.32 shows the relationship between the Jump frequency and the output frequency.
Figure 2.32
Note: 1. The drive will use the active accel/decel time (C1-01 and -02) to pass through the specified dead band range, but will not allow
continuous operation in that range.
2. When setting more than one Jump frequency, make sure that the parameters do not overlap.
138
Name
Jump Frequency 1
Jump Frequency 2
Jump Frequency 3
Jump Frequency Width
Output
frequency
Frequency
Jump
Frequency 3
d3-03
Figure 2.32 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
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Default
0.0 Hz
1.0 Hz
common_TMonly
Frequency
reference
increases
Jump
Frequency
Width (d3-04)
Frequency
reference