Siemens Sinumerik 840D Series Function Manual page 80

3 Startup
3.11 Start-up functions
3-80
20.000
Ampl.
[dB]
-60.000
0.100
180.000
Phase
[degrees]
-180.000
0.100
Fig. 3-30 Oscillogram showing reference frequency response of velocity control loop
Amplitude: 20 mm/min.
Offset: 100 mm/min.
0.000
Fig. 3-31 Timing of setpoint step change in velocity control loop
Step change: 0 → 100 mm/min without closed-loop force control, real friction
conditions
Trace 1: Velocity setpoint
Trace 2: Actual velocity value
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
log [Hz]
log [Hz]
50.000
t [ms]
 Siemens AG, 2003. All rights reserved
02.99
10.03
200.000
200.000