6
6-9
6-3 Notch Filter
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Applied Functions
Notch Filter Width and Depth
Width Setting
Ratio of the frequency bandwidth at a damping factor of -3 [dB] relative to the center frequency
when the depth is 0. This value should conform to the left column in the table below.
Depth Setting
I/O ratio at which the center frequency input is completely cut off at a set value of 0 and completely passed at
a set value of 100. If the indication unit is [dB], this value should conform to the right column in the table below.
Width
Depth
Set value
Bandwidth/center frequency
Set value
I/O ratio (%)
Damping factor (dB)
0
0.50
0
0 (Cut off)
−∞
1
0.59
1
1
−
40.0
2
0.71
2
2
−
34.0
3
0.84
3
3
−
30.5
4
1.00
4
4
−
28.0
5
1.19
5
5
−
26.0
6
1.41
10
10
−
20.0
7
1.68
15
15
−
16.5
8
2.00
20
20
−
14.0
9
2.38
25
25
−
12.0
10
2.83
30
30
−
10.5
11
3.36
35
35
−
9.1
12
4.00
40
40
−
8.0
13
4.76
45
45
−
6.9
14
5.66
50
50
−
6.0
15
6.73
60
60
−
4.4
16
8.00
70
70
−
3.1
17
9.51
80
80
−
1.9
18
11.31
90
90
−
0.9
19
13.45
100
100 (Passed)
0.0
20
16.00
Notch filter frequency characteristics
−
30
−
25
−
20
−
15
−
10
−
5
0
5
10
0
0
0
1
0
0
1
0
1
Frequency [Hz]
Gain [dB]
−
3[dB]
Depth 0, width 4
Depth 50, width 4
Depth 0, width 8