Delta MH300 Series - Page 510

Chapter 12 Description of Parameter Settings
MH300
12.1-11-5

11-13
PDFF Gain Value
Default: 30
Settings 0–200%
 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 reduce the
speed transient fluctuation at a sudden loading.
 Ensure that you set Pr.11-01 system inertia correctly to get excellent improvement of the speed
response.

11-14
ASR Output Low-pass Filter Time
Default: 0.008
Settings 0.000–0.350 sec.
 Sets the ASR command filter time.

11-15
Notch Filter Depth
Default: 0
Settings 0–20 dB

11-16
Notch Filter Frequency
Default: 0.0
Settings 0.00–200.00 Hz
 Sets the resonance frequency of the mechanical system. Adjust it to a smaller value to suppress
the mechanical system resonance.
 A larger value improves resonance suppression function.
 The notch filter frequency is the mechanical frequency resonance.