KEYENCE LS-3100/3100W Series User Manual

Page 50

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44

CHAPTER 4 Functions and Controls

You are to measure the diam-

eter of a round bar. This diameter, supposedly 100 mm, is displayed and
output in absolute value.

Place two scanning heads as shown above.
Enter the following segment pair for the segment selectors and equation for
the output channel:
Segment selector

X= EDGE 1 or EDGE 2
Y= 2: EDGE 1 (when EDGE 2 is selected for X) or

2:EDGE 2 (when EDGE 1 is selected for X)

Output channel

CH1= -(X+Y)

With the above parameters, you will obtain values X and Y in the figure.
Value D, diameter of the target, is obtained by subtracting values X and Y
from the width of the measuring area. To obtain the width of the measuring
area, add values X, Y, and D. This width is used as the offset value.

See P.37 for the segment selectors and output channels.
Have ready a target of known diameter. Suppose that its diameter is
100.1000 mm, and that values X and Y are measured to be 35.2345 mm and
36.1234 mm, respectively.

Step

Key operation

Display

1

Use FNC to set segment
pair for X and Y.

➪ See P. 32.

2

Use FNC to set equation for
CH1 and CH2. Values X
and Y are obtained.

➪ See P.37.

3

Use DISP to display X and
Y. Take a note of these
values.

4

Use FNC again to set
equation for CH1 and CH2.
Target diameter is to be
displayed and output
through CH1.

5

Press OFS to display
"OFFSET".

6

Enter "171.4579".
* 171.4579 is the total of X,
Y, and D.

7

Press ENT to register, or
press CLR and reenter
correct value.

X

E

Y =

=

D G E I

2

E D G E 2

:

3 5

2

.

3 4 5

C H

2

3 6

1

.

2 3 4

N O

R

O

F

E

F

0

0 0 0

.

0

S

T

O

F

E

F

[

1 . 4

7

7

S

T

1

9 ]

5

O

F

E

F

1 . 4

7

7

S

T

1

9

5

HEAD1

HEAD2

Edge1

Edge2

Edge1

Edge2

X

D

Y

Transmitter

Receiver

C H

-

1 =

C H

Y

2 =

X + Y

(

)

C H

X

1 =

C H 2 = Y

08.10.1, 10:55 AM

44

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