6. Description of Parameters                                                                                                    
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6
6.8  Process Control
This section introduces three commonly used process control functions, the wobble function, fixed 
length and counting.
6.8.1  The Wobble Function
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and unwinding applications. It indicates output frequency wobbles up and down with frequency 
reference as center. 
Figure 6-46 Application of the wobble function
The winding motor 
rotates at uniform linear 
speed.
Reciprocating 
mechanism
 Set wobble function related parameters.
With 
wobble 
function
Without 
wobble 
function
Pendulum 
motor
f
t
 
Fb-01
Fb-02
Fb-03
Fb-04
Function Code
Parameter Name
Wobble amplitude
 time coefficient
Triangular wave rising
Wobble cycle
Wobble step
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Figure 6-47 The wobble function schematic diagram
Time (t)
Output 
frequency (Hz)
Wobble frequency 
upper limit
Frequency 
reference Fset
Wobble frequency 
lower limit
Wobble 
cycle
Triangular 
fallling time
Decelerate
Wobble amplitude
Aw = Fset x Fb-01
+Aw
Textile wobble 
step
 = Aw x Fb-02
-Aw
Triangular 
rising time
RUN 
command
Accelerate