Yaskawa Sigma II Series SGMVH - Manual (Page 263)

9.1 Autotuning
9
Adjustments
9-3
(3) Vibration Reduction Functions
Function Name and
Related Parameters
Description Features Valid
Control
Modes
Refer-
ence
Section
Soft Start
Pn305
Pn306
Converts a stepwise speed reference to a
constant acceleration or deceleration for
the specified time interval. A constant acceleration/deceleration is
achieved for smoother operation. The
operation time is increased for the speci-
fied time. Speed 8.5.4
Acceleration/
Deceleration Filters
Pn204
Pn207
A 1st-order delay filter for the position
reference input. Enables smooth operation.
The reference time increases by the filter
delay time even after the reference input
has been completed. Position 8.6.4
Movement Average
Filter
Pn207
Pn208
A movement averaging filter for the posi-
tion reference input. Enables smooth operation.
The reference time increases by the filter
delay time even after the reference input
has been completed. Position 8.6.4
Speed Feedback
Filter
Pn308
A standard 1st-order delay filter for the
speed feedback. The feedback speed is smoother.
The response is delayed if a large value is
set. Position
Speed 9.4.7
Speed Reference
Filter
Pn307
A 1st-order delay filter for the speed refer-
ence. The speed reference is smoother.
The response is delayed if a large value is
set. Speed 8.5.5
Torque Reference
Filter
Pn401
A 1st-order filter time constant can be set
for the torque reference. The lower the value, the better the speed
control response will be, but there is a
lower limit that depends on the machine
conditions. Position
Speed
Torque 9.4.10
Notch Filter
Pn408
Pn409
Pn40A
Pn40B
Pn40C
Notch filters can be set for the torque ref-
erence. The performances of first stage
notch filter and second stage notch filter
are identical. Mainly effective for vibration between
500 and 2,000 Hz.
Instability will result if the setting is not
correct. Position
Speed
Torque 9.4.10