YASKAWA SGDH User Manual page 515

9 Adjustments
9.1.2 List of Servo Adjustment Functions
(3) Vibration Reduction Functions
Function Name and
Related Parameters
Soft Start Converts a stepwise speed reference to a
constant acceleration or deceleration for
Pn305
the specified time interval.
Pn306
Acceleration/ A 1st-order delay filter for the position
Deceleration Filters
reference input.
Pn204
Pn207
Movement Average A movement averaging filter for the posi-
Filter tion reference input.
Pn207
Pn208
Speed Feedback
A standard 1st-order delay filter for the
Filter speed feedback.
Pn308
Speed Reference A 1st-order delay filter for the speed refer-
Filter ence.
Pn307
Torque Reference A series of three filter time constants, 1st-
Filter order, 2nd-order, and 1st-order, can be set
in order for the torque reference.
Pn401
Notch Filter Notch filters can be set for the torque ref-
erence.
Pn409
Description
9-4
Features
A constant acceleration/deceleration is
achieved for smoother operation. The
operation time is increased for the speci-
fied time.
Enables smooth operation.
The reference time increases by the filter
delay time even after the reference input
has been completed.
Enables smooth operation.
The reference time increases by the filter
delay time even after the reference input
has been completed.
The feedback speed is smoother.
The response is delayed if a large value is
set.
The speed reference is smoother.
The response is delayed if a large value is
set.
These filters are effective in essentially
all frequency bands.
The response is delayed if a large value
(low frequency) is set.
Mainly effective for vibration between
500 and 2,000 Hz.
Instability will result if the setting is not
correct.
Valid Refer-
Control ence
Modes Section
8.5.4
Speed
8.6.4
Position
8.6.4
Position
9.4.7
Position
Speed
8.5.5
Speed
9.4.10
Position
Speed
Torque
9.4.10
Position
Speed
Torque