Siemens SINUMERIK 840D Description Of Functions page 80

3 Start-Up
3.11 Start-up functions
Measurement
Velocity control
loop
3-80
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
20.000
Ampl.
[dB]
–60.000
1.000
+180
Phase
[degrees]
–180
1.000
Fig. 3-29 Example of valve frequency response on HRV size 06, 15 l/min, knee-point
60%. Note: For setting of valve data, see Section 4.7.
Table 3-4 Measurement types and quantities for measurement of velocity control
loop
Measure-
ment
Reference Velocity setpoint in velocity controller
frequency re- cycle, valve control loop closed, velocity
sponse control loop closed
Setpoint step Velocity setpoint in velocity controller
change cycle, valve control loop closed, velocity
control loop closed
Interference Valve spool setpoint in velocity controller
frequency re- cycle, valve control loop closed, velocity
sponse control loop closed
Disturbance Valve spool setpoint in velocity controller
step change cycle, valve control loop closed, velocity
control loop closed
Velocity con- Valve spool setpoint in velcoity controller
troller path cycle, valve control loop closed, velocity
control loop closed
Velocity con- Velocity setpoint in velocity controller
troller path + cycle, valve control loop closed, velocity
controller control loop closed
log [Hz]
log [Hz[]
Trigger
Actual velocity value/
velocity setpoint
Quantity 1:
S
S
Quantity 2:
Actual velocity value
Actual velocity value/
valve spool setpoint
Quantity 1:
Valve spool setpoint
Quantity 2:
Actual velocity value
Actual velocity value/
actual valve spool value
Actual velocity value/
control deviation
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04.00
02.99
1.000e+03
1.000e+03
Measured quantities
Velocity setpoint
Valve spool setpoint