Veichi SD780 Series, Manual

Page: 119 / 284

6 Adjustment
113 SD780 Series Servo Technical Manual
Pn142 IF suppression frequency
Pn143 IF suppressionattenuation gain
Pn153 Notch filter 1 frequency
Pn154 Notch filter 1 Q value
Pn155 Notch filter 1 depth
Pn156 Notch filter 2 frequency
Pn157 Notch Filter 2 Q Value
Pn158 Notch filter 2 depth
Pn240 Model tracking control selection
Pn241 Model tracking control gain
Pn242 Model tracking control attenuation coefficient
Pn243 Model tracking control speed feed forward gain
Pn244 Model tracking control forward torque feed forward gain
Pn245 Model tracking control reverse torque feed forward gain
6.5 Bandwidth Setting
6.5.1 Profile
The bandwidth setting is a method of inputting a speed command or a position command from the
host device, and manually adjusting the running speed.
By adjusting one or two values with the bandwidth setting, the relevant servo gain setting can be
automatically adjusted.
The bandwidth setting adjusts the following items:
 Gain adjustment (speed loop gain, position loop gain, etc.)

Filter adjustment (torque command filter, notch filter)
 Friction compensation

IF (intermediate frequency) suppression control
 Low frequency vibration suppression

Use the bandwidth setting when you cannot achieve satisfactory response
characteristics after setting it by intelligent settings. If you want to further fine-tune
each servo gain after adjusting the bandwidth setting, see “Manual Adjustment
Function” for manual tuning
6.5.2 Steps
Before performing bandwidth setting, be sure to confirm the following settings. If it is set incorrectly,