Delta MS300 Series User Manual page 442

11-12
Gain for ASR Speed Feed Forward

Settings
 This function enables when Pr.11-00 bit 0 = 1.
 Increase the setting for Pr.11-12 to reduce the command tracking difference and improve the
speed response. Use this function for speed tracking applications.
 Set Pr.11-01 correctly to get excellent improvement of the speed response.
11-13
PDFF Gain Value

Settings
 This parameter is invalid when Pr.05-24 = 1.
 This parameter is valid only when Pr.11-00 bit0 = 1.
 After you estimate and set Pr.11-00 bit0 = 1 (auto-tuning), use Pr.11-13 to reduce overshoot.
However, a shift of the curve may occur earlier. In this case, you can set Pr.11-13 = 0 first, and
then increase the setting value to "a condition with best acceleration and without overshoot"
when the acceleration time meets your application but overshoot occurs.
 Increasing Pr.11-13 improves the overshoot of speed tracking, but an excessive value may
reduce the transient response.
 Increasing Pr.11-13 enhances the system stiffness in high-speed steady state and reduces the
speed transient fluctuation at a sudden loading.
 Ensure that you set the Pr.11-01 system inertia correctly to get excellent improvement of the
speed response.
0–200%
0–200%
Chapter 12 Descriptions of Parameter SettingsMS300
Default: 0
Default: 30
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