Siemens SINUMERIK 840D Description Of Functions page 71

02.99
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SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
[ f
2. f (f )

valve cylinder
Amplitude log frequency curve
1
10
0
10
–1
10
–2
10
–3
10
–4
10
–5
10
1
10
–90
–180
–270
1
10
Fig. 3-23 Frequency response of the controlled system (
3.9 Fine adjustment and optimization
2 3
10 10
log f
Phase frequency curve
2 3
10 10
log f
3 Start-Up
Valve:
fv=100 Hz; Dv=0.8
Drive:
fa=100 Hz; Da=0.1
[ f
f
)
valve cylinder
3-71