Panasonic MINAS A6 Series - Page 331

5-39
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in Trouble
7
Supplement
4. Manual Gain Tuning (Basic)
Suppression of Machine Resonance
Notch width and depth
The width of the notch lter 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 lter 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
Band width/center frequency
Notch depth I/O ratio [dB]
A6 series
0 0.5 0 0 −∞
1 0.59 1 0.01 −40
2 0.71 2 0.02 −34
3 0.84 3 0.03 −30.5
4 1 4 0.04 −28
5 1.19 5 0.05 −26
6 1.41 6 0.06 −24.4
7 1.68 7 0.07 −23.1
8 2 8 0.08 −21.9
9 2.38 9 0.09 −20.9
10 2.83 10 0.1 −20
11 3.36 15 0.15 −16.5
12 4 20 0.2 −14
13 4.76 25 0.25 −12
14 5.66 30 0.3 −10.5
15 6.73 35 0.35 −9.1
16 8 40 0.4 −8
17 9.51 45 0.45 −6.9
18 11.31 50 0.5 −6
19 13.45 60 0.6 −4.4
20 16 70 0.7 −3.1
80 0.8 −1.9
90 0.9 −0.9
100 1 0
Notch filter frequency characteristics
−30
−25
−20
−15
−10
−5
0
5
10
Gain [dB]
10 100 1000
Frequency [Hz]
Depth 0, width 4
Depth 50, width
4
Depth 0, width 8
−3[dB
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