Delta Electronics CTA4

CTA USER MANUAL
© DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED - 23 - 2007-05-09
CHAPTER THREE: APPLICATIONS
3.1 On Cut-To-Length Machines
The machine adopts the counter function in CTA and acquires the feedback signal from the encoder for measuring
the actual operation distance. When the set distance is reached, the output signal will enable the knife for the
cutting.
Example: We will simulate the action above by using CTA and Delta ASDA-A.
 Parameter settings
x
z
Select function: Counter
x
z
Select counting mode: 1-stage counting (only 1 set value). If you need 2 set values, select 2-
stage
counting.
x
z
Select input mode: Quadrature input
x
z
Select output mode: C; the counting will automatically restart when the set value is reached.
x
z
Select counting speed: The maximum 10K
x
z
Set up pulse width of output 2: 0.02 second
x
z
Set up the position of decimal point: 0 (no decimal point)
x
z
Set up pre-scale value: 0.056
x
z
Save the data while switching off the power: Select CLEAR, and the PV will not be saved.
x
z
Set up min. width of reset signal: select default value 20ms.
x
z
Select input signal type: NPN
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