ASDA-B2  Chapter 6  Control Modes of Operation 
Revision May, 2018     6-31 
 
P2-25    NLP 
Low-pass Filter of Resonance 
Suppression 
Address: 0232H 
0233H 
 
Operation 
Interface: 
Keypad/Software   Communication  
Related Section:  
Section 6.3.7 
 
 
Default: 0.2 (1kW and below 
models) or 0.5 
(other models) 
2 (1kW and below 
models) or 5 (other 
models) 
 
Control 
Mode: 
ALL 
 
Unit: 1ms  0.1ms 
 
Range: 0.0 ~ 100.0  0 ~ 1000 
 
Data Size: 16-bit 
 
Display 
Format: 
One-digit Decimal 
 
Input Value 
Example: 
1.5 = 1.5 ms  15 = 1.5 ms 
Settings: Set the low-pass filter of resonance suppression. When the value 
is set to 0, the function of low-pass filter is disabled. 
 
 
 
There are two sets of auto resonance suppression, one is P2-43 and P2-44 and another 
one is P2-45 and P2-46. When the resonance occurs, set P2-47 to 1 or 2 (enable the 
function of resonance suppression), the servo drive searches the point of resonance 
frequency and suppresses the resonance automatically. Write the point of frequency into 
P2-43 and P2-45 and write the attenuation rate into P2-44 and P2-46. When P2-47 is set 
to 1, the system will set P2-47 to 0 (disable the function of auto suppression) automatically 
after completing resonance suppression and the system is stable for 20 minutes. When 
P2-47 is set to 2, the system will keep searching the point of resonance.