Panasonic MINAS A5-series Operating Instructions Manual page 252

4. Manual Gain Tuning (Basic)
Suppression of Machine Resonance
Notch width and depth
The width of the notch filter is the ratio of the width of –3dB attenuation frequency band
with respect to the notch frequency at its center when depth is 0, and the value is as
shown in the table below.
The notch filter depth indicates I:O ratio where the input at the center frequency is com-
pletely shut with setup value 0 but fully received with setup value 100. The table below
shows this value in dB on the right.
Notch width
10
11
12
13
14
15
16
17
18
19
20
10
5
0
−5
−10
−15
−20
−25
−30
10
5-22
Band width/center
frequency
A4 series
A5 series
(reference)
0 0.41
1 0.56
2 0.71
3 0.86
4 1.01
5 —
6 —
7 —
8 —
9 —
—
—
—
—
—
—
—
—
—
—
—
Notch filter frequency characteristics
−3[dB]
Frequency
Notch depth
0.5 0
0.59 1
0.71 2
0.84 3
1 4
1.19 5
1.41 6
1.68 7
2 8
2.38 9
2.83 10
3.36 15
4 20
4.76 25
5.66 30
6.73 35
8 40
9.51 45
11.31 50
13.45 60
16 70
80
90
100
100
[Hz]
I/O ratio [dB]
0 −∞
0.01 −40
0.02 −34
0.03 −30.5
0.04 −28
0.05 −26
0.06 −24.4
0.07 −23.1
0.08 −21.9
0.09 −20.9
0.1 −20
0.15 −16.5
0.2 −14
0.25 −12
0.3 −10.5
0.35 −9.1
0.4 −8
0.45 −6.9
0.5 −6
0.6 −4.4
0.7 −3.1
0.8 −1.9
0.9 −0.9
1 0
Depth 0, width
Depth 50, width
Depth 0, width
1000
4
4
8