Signal Analysis Overview - Parker Compax3 Operating Instructions Manual

Setting up Compax3
Basic structure of the signal analysis
Signal
Generator
Superimposed
überlagertes
System
250
4.4.9.2

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 on page 251) with the aid of a system-dependent key.
You do not require expensive and complex measurement equipment -> a
Compax3 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.
192-120113 N08 C3I12T11 - December 2010
Upload
C3-Software-
Oscilloscope
System S
Output
G(f)
Ausgangs
Signal y(t)
C3I12T11
Display of the
measurement
Anzeige der Messung