Siemens Sinumerik 840D Series Function Manual page 69

02.99
10.03
 Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 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
Phase frequency curve
-90
-180
-270
1
10
Fig. 3-23 Frequency response of controlled system (
3.9 Fine adjustment and optimization
2 3
10 10
log f
2 3
10 10
log f
[ f
f
valve
3 Startup
Valve:
fv=100 Hz; Dv=0.8
Drive:
fa=100 Hz; Da=0.1
)
cylinder
3-69