YASKAWA FSDrive-MV1S, Instructions Manual

Page: 140 / 220

6
-16
‹
Operation Avoiding Resonance (Jump Frequency Function)
The jump frequency function operates the motor while avoiding resonance caused by characteristic frequen-
cies in the machinery.
This function is effective in creating a frequency reference dead band.
During constant-speed operation, operation within the jump frequency range is prohibited. Smooth operation
still used during acceleration and deceleration, i.e., jumps are not performed.
„ Related Constants
The relationship between the output frequency and the jump frequency reference is as follows:
H3-12
Signal level selection
(terminal AI4)
0: 0 to 10V
1: -10V to 10V
0 or 1 0 No A A 45BH
Term AI4 Signal
H3-13
Multi-function analog
input
(terminal AI4)
Select multi-function analog
input function for terminal AI4. 00 to
1FH
0FH No A A 45CH
Term AI4 Sel
H3-14
Gain (terminal AI4) Sets the input gain (level) when
terminal AI3 is 10 V. Set
according to the 100% value
selected in H3-13.
0.0 to
1000.0
100.0% Yes A A 45DH
Term AI4 Gain
H3-15
Bias (terminal AI4) Sets the input gain (level) when
terminal AI3 is 0 V. Set accord-
ing to the 100% value selected
in H3-13.
-100.0
to
100.0
0.0% Yes A A 45EH
Term AI4 Bias
H3-16
Analog input filter
time constant Sets primary delay filter time
constant in seconds for the four
analog input terminal
(AI1,AI2,AI3,AI4).
Effective for noise control etc.
0.00 to
2.00
0.00
s
No A A 45FH
Filter Avg Time
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
d3-01
Jump frequency 1 Set the center values of the
jump frequencies in %.
This function is disabled by set-
ting the jump frequency to 0
Hz. Always ensure that the fol-
lowing applies:
d3-01
≥
d3-02
≥
d3-03
Operation in the jump fre-
quency range is prohibited but
during acceleration and decel-
eration, speed changes
smoothly without jump.
0.0 to
100.0
0.0% No A A 2F0H
Jump Freq 1
d3-02
Jump frequency 2
0.0 to
100.0
0.0% No A A 2F1H
Jump Freq 2
d3-03
Jump frequency 3
0.0 to
100.0
0.0% No A A 2F2H
Jump Freq 3
d3-04
Jump frequency width Sets the jump frequency band-
width in %.
The jump frequency will be the
jump frequency ± d3-04. 0.0 to
100.0
1.0% No A A 2F3H
Jump Bandwidth
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display