Filter Type - Parker AC30 Serie Benutzerhandbuch

D-39
Parameter Reference
PNO Parameter Descriptions
1544

Filter Type

NONE : no filter applied – no parameter selection
MAX ATTENUATION : First Order Low Pass Filter ( Butterworth form ). 3dB attenuation frequency given by Cut Off Frequency.
H ( s )
MINIMUM PHASE : First Order Low Pass Fitler ( similar to preceeding, but with less phase shift and less efficient roll off
characteristics ). 3dB attenuation frequency given by Cut Off Frequency.
H ( s )
PHASE ADVANCE : Gives a phase advance between Frequency 1 and Frequency 2.
H ( s )
NOTCH : Zero transmission notch at a frequency given by Cut Off Frequency. The damping factor is given by Factor.

H ( s )
1545
Cut Off Frequency
3dB attenuation frequency if Filter Type is MAX ATTENUATION or MINIMUM PHASE
Frequency of Zero transmission if Filter Type is NOTCH
1546
Frequency 1
Frequency 1 if Filter Type is PHASE ADVANCE
1547
Frequency 2
Frequency 2 if Filter Type is PHASE ADVANCE
1548
Factor
Damping factor if Filter Type is NOTCH


1
1 a a z
 
 0 1
H ( z )
1
    
1
1 s 1 b . 1 z
1 a
 
0

H ( z )
1
    
1
1 s 1 b . 1 z
   
1 s a a z
 
1 0 1

H ( z )
1

   
1 s 1 b . 1 z
2
2
s

1


2 2 
s
2

. 1
   
2 2 2
s s
s 2 s
  
1 2
 
2

1
1
 
  
1 2
a a z a z

0 1 2
H ( z  )
1
    
1 2
1 b . z b z
1 2
AC30V series Variable Speed Drive