Signal Analysis Overview - Parker Compax3 Series Operating Instructions Manual

Parker EME
4.3.9.2
Basic structure of the signal analysis
Signal
Generator
Superimposed
überlagertes
System

Signal analysis overview

The ServoSignalAnalyzer offers three basic methods of analyzing systems:
Analysis in the time range by measuring the step response
Spectral analysis of individual signals
Measurement of frequency response (Bode diagram) of the position control or of
individual parts of the control as well as of the control path
These functions are available in the Compax3 ServoManager after the activation
(see page 250) with the aid of a system-dependent key.
You do not require expensive and complex measurement equipment -> a Com-
pax3 device and a PC will do!
Controller and Signal Processing
Steuerung & Signalverarbeitung
+
Input
Eingangs
open/closed
Signal u(t)
Loop
Systems / signals
Depending on the kind of measurement, the SignalAnalyzer can help analyze the
most different signals and systems.
Signal generator
This allows to inject different excitation signals (step, sine and noise signals) into
the control loop.
Superposed system
For different analyses, superposed systems must be manipulated in order to allow
a measurement. After the measurement, the changes made for this purpose are
reset
C3 software oscilloscope
With the aid of the software oscilloscope, the contents of different objects can be
registered and be loaded into the PC for further analysis.
Control and signal processing
The control of the entire measurement as well as the processing of the uploaded
sample data are made in the PC.
192-120114 N5 C3I22T11 June 2008
Upload
C3-Software-
Oscilloscope
System S
Output
G(f)
Ausgangs
Signal y(t)
Setting up Compax3
Display of the
measurement
Anzeige der Messung
249