Delta ASDA-A2 Series User Manual page 210

P2-25 NLP
Operation
Interface:
Default: 0.2 (1kW and below
Control
Mode:
Range: 0.0 ~ 100.0
Data Size: 16-bit
Display
Format:
Input Value
Example:
Settings:
This parameter is used to set low-pass filter time constant of resonance
suppression.
If P2-25 is set to 0, this parameter is disabled.
There are two groups of notch filters provided by ASDA-A2 series. The first group of notch
filter is P2-43 and P2-44, and the second group of notch filter is P2-45 and P2-46. When there
is resonance, please set P2-47 to 1 or 2 (Auto mode), and then the servo drive will find
resonance frequency and suppress the resonance automatically. After suppressing the
resonance point, the system will memorize the notch filter frequency into P2-43 and P-45, and
memorize the notch filter attenuation rate into P2-44 and P2-46.
When P2-47 is set to 1, the resonance suppression will be enabled automatically. After the
mechanical system becomes stable (approximate 20 minutes), the setting value of P2-47 will
return to 0 (Disable auto resonance suppression function). When P2-47 is set to 2, the system
will find the resonance point continuously even after the mechanical system becomes stable.
Revision September 2012
Low-pass Filter Time Constant
(Resonance Suppression)
Keypad/Software
models) or 0.5 (other
models)
ALL
Unit: 1ms
One-digit
1.5 = 1.5 ms
Chapter 6 Control Modes of Operation
Communication
2 (1kW and below
models) or 5 (other
models)
0.1ms
0 ~ 1000
Decimal
15 = 1.5 ms
Address: 0232H
0233H
Related Section:
Section 6.3.7
6-43