Jump Frequency; Frequency Reference Hold - YASKAWA V1000 Series Installation & Start-Up Manual

No. Name
Use d3 parameters to configure the drive Jump Frequency settings.
d3-01

Jump Frequency 1

d3-02 Jump Frequency 2
d3-03 Jump Frequency 3
Jump Frequency
d3-04
Width
Use d4 parameters to configure the drive frequency reference hold function.
Frequency
d4-01 Reference Hold
Function Selection
Frequency
d4-03
Reference Bias Step
<22>
(Up/Down 2)
Frequency
d4-04
Reference Accel/
<22>
Decel (Up/Down 2)
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Description
d3: Jump Frequency
d3-01 to d3-04 allow programming of three
prohibited frequency reference points for
eliminating problems with resonant vibration of
the motor / machine. This feature does not
eliminate the selected frequency values, but
accelerates and decelerates the motor through
the prohibited bandwidth.
The parameters must be according to the rule;
d3-01 ≥ d3-02 ≥ d3-03.
This parameter sets the dead-band width around
each selected prohibited frequency reference
point. The bandwidth becomes the designated
Jump frequency, plus or minus d3-04.
d4: Frequency Reference Hold
This parameter is used to hold the last frequency
reference in U1-01 (d1-01) when power is
removed.
0: Disabled
1: Enabled
This function is available when the multi-
function inputs "accel/decel ramp hold" or "up/
down" commands are selected
(H1- = A or 10 and 11).
Sets the bias added to the frequency reference
when the Up/Down 2 digital inputs are set.
When set to 0.00 Hz, the bias value is increased
or decreased according to d4-04.
When greater than 0.0 Hz, the bias value d4-03
is added or subtracted to/from the frequency
reference.
The acceleration or deceleration rate is
ultimately determined by d4-04.
0: Adjusts the bias value according to the
currently selected accel/decel time.
1: Adjusts the bias value by Accel/Decel Time 4
(C1-07 and C1-08).
B.2 Parameter Table
Control
Mode
Range Def. Addr.
O
V/ P
Hex
L
f M
V
0.0
A A A 294
Hz
0.0
A A A 295
Hz
0.0 to
400.0
0.0
A A A 296
Hz
0.0 to 1.0
A A A 297
20.0 Hz
0,1 0 A A A 298
0.00 to
0.00
99.99 A A A 2AA —
Hz
Hz
0,1 0 A A A 2AB
Pg.
—
—
—
—
—
B
—
323